During the quarter, we announced the divestiture of noncore switches and connectors business within Control Devices. This transaction will allow us to focus resources on the technology platforms that would drive future growth. It will also facilitate the closure of our Canton facility, and reduce complexity in our manufacturing operations and supply chain. This morning, we're adjusting our full-year guidance only to reflect the impact of that divestiture, which we estimate to impact EPS by $0.15 to $0.20 for the year.

We are maintaining our guidance as it relates to the remaining business as we are confident in our ability to deliver on our 2019 plan. Going forward, we expect that the divestiture will reduce revenue by approximately $45 million annually. But that divestiture and closure of our Canton facility will be margin accretive in 2020. With this divestiture, we remain on track to complete our Stoneridge 2020 initiatives.

Finally, this morning I'll provide an update on our progress on both MirrorEye retrofit and OEM opportunities. We remain well positioned to commercialize MirrorEye in the retrofit market with broader rollouts with our freight partners expected in the second and third quarters of this year. Additionally, we are expecting an OEM sourcing decision to be made in the second quarter with two more made by the end of the year or early next year. We remain optimistic related to our OEM pursuits and will provide updates as decisions are made.

Page 4 summarizes our key financial metrics relative to prior quarters, as well as trailing 12 months. During the first quarter, we continued to address the operating issues and external factors that we have discussed in prior quarters, which contributed to adjusted gross margin and operating margin improvements of 50 basis points and 60 basis points, respectively, relative to the first quarter of 2018. Quarter over quarter, adjusted gross margin declined by 170 basis points, while adjusted operating margin declined by 60 basis points. The decline in gross margin was primarily attributable to significantly increased cost related to certain electronic component shortages, driving premium prices and expedited freight, as well as the introduction of tariffs in the summer of 2018.

Excluding the impact of increased costs related to electronics shortages and increased tariffs, quarter-over-quarter adjusted operating margin would have increased despite revenue reduction of approximately 3%. Sales grew slightly in the trailing 12-month period, excluding the ramp down in Shift by Wire, sales grew by 4.7%. Our the same period, adjusted earnings per share increased by 14%. We continue to focus on the factors that are within our control and to work to offset external factors.

We remain committed to our long-term target of top quartile financial performance or at least 15.5% EBITDA margin in 2021. Turning to Page 5. Earlier this year, we laid out the continued transformation of the company with a detailed strategy for each of our segments referred to as Stoneridge 2020. Our Stoneridge 2020 initiatives will accelerate development of our core technologies to enable the system based solutions that will drive sustainable long-term growth.

Each of the segments remains on track to complete the outline initiatives by the end of 2020. Excluding Shift by Wire, control devices revenue increased by almost 5% in the trailing 12 months, driven primarily by our actuation and emission sensing products. We continue to focus on margin improvement at control devices through operational efficiency. Operating margin improved by 140 basis points quarter to quarter for this segment as a result of that continued focus.

The exit of our Canton facility will help to optimize remaining factoring footprint and cost structure. We expect to exit manufacturing operations at Canton by the end of 2019 with an expected exit of the overall facility in the first quarter of 2020. Looking forward, the reduction in the cost structure related to exiting the facility will almost fully offset the divested earnings next year, leading to improved operating margins for control devices. The divestiture of our switches and connectors business complete the strategic review of our noncore businesses at control devices and allows us to focus on the core technologies that would drive future growth.

We are pleased with the continued growth in our electronics business and the opportunities in front of us. More specifically, I will discuss MirrorEye in detail later in the call. We continue to expect increased engineering expenses related to developing and delivering growth technologies, as we discussed last quarter. Finally, we continue to review strategic alternatives for our noncore switches and controls products in the electronics segment.

Those alternatives could include the divestiture of the business or restructuring of the business or some combination of both. We expect to conclude the review and move forward with the solution this year. For PST, we are confident that we can utilize our footprint in Brazil to better serve our global commercial vehicle OEM customers and also help scale our existing business. We are working toward additional OEM awards in region to build on the $17 million of peak annual revenue awards we have already announced.

Despite the unfavorable impact of foreign currency, which resulted in reduced revenue quarter over quarter, we improved operating margin by 220 basis points and operating income by more than 25%. Our team continues to improve performance within the segment while navigating through a difficult macroeconomic environment. Overall, we remain on track to complete our Stoneridge 2020 initiatives, which will continue the transformation of the business and position each segment for long-term profitable growth. On Page 6, during the quarter, we announced the divestiture of certain product lines to standard motor products.

This divestiture was important to the continued transformation of the company. The divestiture better allows us to focus our resources on the actuation and sensor technologies that will drive future growth for control devices. Additionally, the transaction facilitates a right-sizing of our North American manufacturing footprint and elimination of certain fixed costs. Finally, this divestiture will reduce complexity in the manufacturing and supply chain organizations, allowing us to continue to focus on the operational activities that will drive margin improvement for the segment.

Bob will discuss our adjusted guidance related to the divestiture in more detail later in the call. This divestiture concludes the strategic review of our control devices portfolio. Our efforts will move to similar noncore switches and controls product lines in electronics, as we continue to transform our portfolio to align with our long-term strategy. Turning to Page 7, we continue to move forward in the commercialization of MirrorEye with both our retrofit partners and potential OEM customers.

To date, we have expanded our trials to 15 fleets, representing more than 100,000 total commercial vehicles and we have over 3 million miles driven by North American fleets with MirrorEye systems. The feedback from our fleet partners continues to be positive and is helping to shape future product features and capabilities. In addition to the progress we have made with our fleet partners, we continue to gain momentum with our OEM customers. As we have announced previously, we have already been rewarded MirrorEye program with a global OEM -- with a global commercial vehicle OEM.

In addition to that award, we have been working with three additional global OEMs to develop MirrorEye solutions. We expect that 1 of the OEMs will announce a sourcing decision in the second quarter with the other two announcing sourcing decisions late in 2019 or early 2020. Including the OEM award we have previously announced, these four OEMs accounted for more than half of the North American and European commercial vehicle production in 2018. As we've discussed previously, we have estimated the annual OEM MirrorEye market opportunity to be approximately $250 million at a 10% to 15% penetration rate for class five to class eight vehicles in Europe and North America.

MirrorEye remains the only driver vision system on the market to receive exemption from FMCSA to replace physical mirrors. We continue to execute on our plan to ensure MirrorEye's leading camera mirror system available both to our fleet and OEM customers and that it is the basis for future active safety solutions in commercial vehicles. Turning to Page 8, I'm pleased with our achievements in the first quarter. We delivered another quarter of strong financial performance and continued our transformation of the company as we executed on our Stoneridge 2020 initiatives.

With the divestiture of our noncore switches and connectors product lines, we continue to focus our portfolio and resources on the technologies and product platforms that will drive future growth. MirrorEye continues to move forward with fleets and OEMs. At Stoneridge, we will continue to execute on our long-term strategy, drive continuous improvement and refine our capabilities to deliver shareholder value. With that, I'll turn it over to Bob to discuss our financial results in more detail.

Bob Krakowiak -- Chief Financial Officer

Thanks, Jon. Turning to Slide 10. Sales in the first quarter were $218.3 million, a decrease of 3% relative to the first quarter of 2018. Adjusted operating income was $16.1 million or 7.4% of sales.

More specifically, Control Devices sales of $112 million decreased 5% quarter over quarter, resulting in operating income of $14.7 million or 13.1% of sales. Electronics sales of $100 million decreased by 1%, while adjusted operating income increased 12% to $9.2 million or 9.3% of sales. Adjusted operating margin improved by 110 basis points over the same period last here. PST sales of $17.3 million resulted in adjusted operating income of $1.1 million, which was an increase of 26% relative to the same period last year.

Adjusted operating margin of 6.6% improved by 220 basis points over the same period last year. This morning, we are adjusting our 2019 guidance. We expect our guidance to be in line with our previously provided guidance less the impact of recently announced divestiture. As discussed previously, we expect the divestiture to reduce our adjusted EPS by $0.15 to $0.20 in 2019.

I will provide additional detail to our guidance and expect cadence of revenue and earnings later in the call. Page 11 summarizes our key financial metrics for control devices. As has been the case in prior quarters, control devices base portfolio continue to grow excluding the impact of Shift by Wire. Control devices sales declined by $5.5 million relative to the first quarter of 2018 due to the continued and anticipated ramp down of Shift by Wire, which represented a $6.7 million headwind.

The decline in Shift by Wire was partially offset by growth in our emission sensing products in China, as we continue to see strong demand in the local market. Adjusted operating margin increased by 140 basis points relative to the fourth quarter of 2018 and a slight increase in sales. Reduced quality-related expenses and improved operational efficiency led to reduce direct material and overhead costs. Additionally, quarter over quarter, tariffs accounted for additional $900,000 with expense or 80 basis points of adjusted operating margin headwind.

Excluding tariff related expenses, adjusted operating margin declined by 130 basis points relative to the first quarter of 2018. The magnitude of the decline in margin is consistent with our expectations based on our historical contribution margins. Control devices is delivering growth throughout the product portfolio while focusing on operating margin expansion through continuous improvement. Page 12 highlights the growth in revenue and adjusted operating income over the last 12 months in our electronics segment.

Our the last 12 months, sales grew 10%, while adjusted operating margin improved by 130 basis points, which resulted in adjusted operating income growth of 30%. In the quarter, electronics sales were relatively flat compared to the first quarter of 2018, despite a headwind of $8.6 million related to unfavorable currency exchange rates. Continued strength in European and commercial vehicle production in increased sales of Orlaco products approximately offset the currency headwinds. Excluding the unfavorable impact of foreign currency, quarter-over-quarter sales increased by 7.7%.

Based on third party, forward-looking forecast for our primary currency exposures, we expect unfavorable FX impact to ease as the year progresses. Adjusted operating income increased by 12% and adjusted operating margin increased by 110 basis points, relative with first quarter of 2018 and relatively flat revenue and significant cost increases as a result of electronic component shortages. SG&A costs were reduced, due in part, to previously announced actions taken to restructure our aftermarket tachograph businesses. Design and development of the quarter was lower than expected due to delayed spending of engineering cost.

We expect to incur these engineering costs over the remainder of the year and also expect our costs related to electronic component shortages to subside as global capacity increases. Electronics continues to deliver solid financial performance led by a strong product portfolio, which will deliver growth above the underlying markets and an improving margin profile. Turning to page 13, PST had another successful quarter despite significant macroeconomic challenges, including unfavorable currency movements. Relative to the first quarter of 2018, PST revenue declined by $3.2 million due to the impact of foreign currency.

PST continues to drive margin improvement. Quarter over quarter, adjusted operating margin improved by 220 basis points resulting in an adjusted operating income growth of 26%. Continued focus on cost controls contributed to margin expansion at PST. PST is growing OE capabilities while driving profitability and margin expansion.

We're pleased with this segment performance in the first quarter of 2019, despite significant macroeconomic challenges. Turning to Page 14. This morning, we are adjusting our 2019 guidance to reflect the impact of the divestiture. We are maintaining our previously provided guidance with the only adjustment being related to the reduction of the divested business.

As we outlined previously, we expect revenues to be reduced by approximately $15 million to $20 million, as divested revenue will be somewhat offset by revenue generated through our contract manufacturing agreement during the transition period. We expect $2 million to $3 million of revenue reductions in the second and third quarter. We also expect contract manufacturing will materially end after the third quarter, as a result, the bulk of the reduction in revenue will be recognized during the fourth quarter. As a result of the divestiture, we expect reduced earnings per share of $0.15 to $0.20 for the remaining three quarters of 2019.

While the contract manufacturing agreement reduces the impact of the divested revenue in 2019, it will now provide for significant offset to divested income. We expect that the EPS impact will be approximately evenly spread throughout the final three quarters of the year. As a result of the continued ramp down of Shift by Wire and of divestiture, we expect that the second quarter will be our lowest revenue quarter of the year. That said, we still expect approximately 50-50 split of revenue between the first and second halves of the year.

Finally, we have adjusted our expectations for operating margin through the remainder of the year to account for the divestiture. As we have discussed previously, the margin of the divested business was higher margin in the overall portfolio with a lower growth rate. We reduced our overall adjusted operating margin by 50 to 75 basis points for the full year. We expect our first-half adjusted operating margin midpoint of 6.5% and second-half adjusted operating margin midpoint of 8.75%.

In addition to continued operating improvement, we expect reduce electronic components cost as the year progresses driving margin expansion in the second half of the year. On Page 15, our divestiture generated approximately $40 million of cash, resulting ineffectively no net leverage post-transaction. We remain committed to maximizing shareholder return through efficient and optimal use of our available capital, including investment in our existing business to continue the valuation of M&A opportunities and return of capital to our shareholders. As we have announced previously, our board of directors authorized a $50 million share repurchase program in October of 2018 to be executed over an 18-month period.

Despite our inability to repurchase shares, prior to the announcement of the divestiture in the first quarter, we remain committed to executing the program in the authorized time period. Moving to Slide 16. In closing, I want to reiterate that we are pleased with our performance. We delivered strong results for all of our key financial metrics.

This morning, we are maintaining our guidance related to our base business adjusting only for the divestiture announced in the first quarter. Stoneridge is committed to driving shareholder value and that focus remains at the forefront of our all of our strategic initiatives. With that, I'll open the call for questions.

Questions & Answers:

Operator

[Operator instructions] Your first question comes from the line of Justin Long with Stephens.

Justin Long -- Stephens Inc. -- Analyst

Congrats on the quarter. So I wanted to start with MirrorEye. Could you expand a little bit more about what a fleet evaluation entails? And do you have any initial thoughts on the number of retrofits you can see just based on these 100,000 plus vehicles that are evaluating the product today?

Jon DeGaynor -- President and Chief Executive Officer

Justin, thanks for the question. The initial fleet evaluations are an expansion of what we've already done with our leading fleets. So in any of these situations, the fleets want to trial it, and understand the technology a little bit more and make sure that they get their driver's reaction. So it's a necessary and logical first step before the retrofit activity expands more extensively.

With regards to overall volumes and what we assume in the balance of the year going forward, we don't give specific guidance with regards to that. But what we're signaling is we're working with the right fleets and we're continuing to expand our trials, which gives us confidence that this retrofit will move forward as we planned.

Justin Long -- Stephens Inc. -- Analyst

OK. And then based on what you said about the potential timing for the MirrorEye awards from the three global OEs, any updated thoughts around the timing of your MirrorEye OE launch? And what's your confidence and visibility that the timing of that launch will materialize as planned?

Jon DeGaynor -- President and Chief Executive Officer

Well, the one program that we've announced, we're so confident with the timing of that launch. And that's a 2020 program. Obviously, we have talked before, Justin, on any OE program, there's a lag between customer award and a start of production. So these subsequent awards would launch post that.

And we're still -- and we're having conversations with all the OEs, we are still of the belief, that actually, they may want to accelerate the penetration of the product. And we're prepared to support them at that time but at this point, the penetrations that we've talked about and we've talked about in the scripter where we see it right now. But it's still -- from an OE standpoint, it's a 2020 and beyond.

Justin Long -- Stephens Inc. -- Analyst

OK. And then just lastly, I wanted to clarify something on the operating margin guidance. Bob, it seems to imply that 2Q operating margins could be somewhere around that 5.5% level at the midpoint when I just look at what that first half guidance implies. When you think about that sequential step down of 200 basis points or so from the first quarter, if my math is right, how much of that would you say is just the timing of engineering expense versus other items?

Bob Krakowiak -- Chief Financial Officer

Well, Justin, let me walk you through. There's really just four primary variances when you go from the first quarter to the second quarter with respect to the walk. The first one is the continued roll of the Shift by Wire. So, as I mentioned, on the call that Q2 will be our lowest revenue quarter of the year.

So basically, kind of, bottom out and stabilizes with Shift by Wire during Q2. And, keep in mind, that our contribution margins are 2.5 to 3 times our EBITDA margin so that work's on the way up and on the way down as well. So that's the first component of it. The second component is the revenue impacted divestiture.

So we had said you take the 17.5% midpoint and you basically equally spread it throughout the year. So that's the next piece of the upper walk. And then the third piece that you mentioned earlier was timing the engineering spend. So part of the beat for us this year was -- this quarter, I apologize, was the fact that we didn't spend as much as we planned but we plan on recouping some of that during the second quarter.

And then the last piece of the puzzle, Justin, if you look at our tax rates, our tax rate was around 19% in the first quarter. We guided to a midpoint, 22.5%. So that -- we had a one-time good guide in the first quarter, relating to an R&D credit that's not going to recur. So that was a $0.01 to $0.02, a good news as well.

So that's basically the walk. And then Justin, just in terms of just looking at the overall year and how we thought about the guidance. I think, if you start with the customers in the market, so overall the market for us is relatively neutral. Traditional pass cars has been slow, continues to be slow.

But if you look at SUV, CUV and light truck they continues to be very strong and majority of our passenger car volumes in this segments. So we have some nice tailwind there. Commercial vehicles in aftermarket continues to be strong as well. And then China was little bit better than expected.

So really not neutral in terms of the market. And then, when you look at what we control. We are slightly more positive when you look at what we control so operationally we got off to a little better start than we anticipated in the guidance for the full year. As I mentioned earlier, the engineering spend, we underspent our budget in Q1, but anticipated spend during the remainder of the year and I mentioned the tax rate as well, tax rate was lower than the guidance.

So overall, we're slightly positive in terms of what we control relative to our expectations in Q1. And then when you look at the currency markets, that's the other piece of the puzzle here. So currency has been a headwind in Q1. If you look at the bank consensus around our primary currencies, the forecast is moving in our favor, but they're also a significant amount of volatility within the bank forecast.

And I would say overall, that's slightly negative. We haven't banked on the fact that the currency market is going to recover at the rate that the bank consensus has been viewed. So that's an, overall, slightly negative, and we basically weigh those 3 factors together, we come out with guidance. So that's flat to where we were before.

Justin Long -- Stephens Inc. -- Analyst

OK. And just to clarify on that margin walk, the engineering expense step up was a piece of that. How much do you expect engineering expense to be up on a sequential basis first quarter to second quarter?

Bob Krakowiak -- Chief Financial Officer

Yes. We -- it's $0.02, $0.03, Justin.

Justin Long -- Stephens Inc. -- Analyst

$0.02, $0.03. OK. Perfect. That's helpful and congrats again.

Operator

Your next question comes from the line of Scott Stember with CL King.

Scott Stember -- C.L. King -- Analyst

Jon, maybe just talk about going back to MirrorEye in the retrofit side. I'm just trying to frame up the 15th fleet evaluation versus prior to this quarter we were talking about and I don't know if you talked about the number of vehicles within these fleets of the 100,000 or frame that out previously, but just maybe give us an indication of how big or how much the increase with the evaluations from the fleets, how much of an increase you're seeing?

Jon DeGaynor -- President and Chief Executive Officer

Yes. Scott, thanks for your question. I think we've talked maybe we haven't been specific on the exact fleet evaluations. It's with -- we had three absolute lead fleets and those were the ones that were supporting of us, even through the FMCSA process.

But it was really five fleets that were involved in the fleet evaluations and we've expanded that now to 15. And of the first three, they probably represented somewhere on the order of roughly 35,000 vehicles. So this fleet of evaluation is now 15 fleets with a 100,000 vehicles in the fleets that they control. So it's a fairly material expansion.

So what we're trying to do as we said before is, this fleet trial is about generating feedback, it's continuing to refine our product and making sure that we have something that the drivers appreciate and can use, and that the fleets are comfortable with. And by doing this in a stepwise manner, we think it's the right approach for us to take. And we're really pleased with progress that we're making here.

Scott Stember -- C.L. King -- Analyst

All right. And then next question, I guess, on the OEM side and maybe for the retrofits as well with MirrorEye. But when you guys have talked about your expected take rates 10% to 15%, I think, that was originally before the FMCSA exemption and there's been a tremendous amount of ground support that has built up across the industry since then. Can you just maybe talk about, without getting too specific, what -- how conservative those take rates that you initially thought could be?

Jon DeGaynor -- President and Chief Executive Officer

Yes. Scott, you have to remember that we don't control that. That's controlled by the OEs and it's controlled by -- in North America, it's really controlled by the fleets and the OEs working together. So what we're trying to do is we're trying to make sure that our product is the most robust that we're taking the feedback from the fleets and that we're in constant communication with the OEs to make sure that we're meeting their expectations and requirements.

But that take rate isn't controlled by us. We're prepared to respond as the take rate changes and for right now all we have is visibility that we've been given by the OEs. Do we think that it could go higher? Sure. But we're not going to give you a different number because we don't know anything different from the OEs.

Scott Stember -- C.L. King -- Analyst

Got it. I appreciate that. And just lastly, maybe just dig into some of the transition again related to the divestiture to standard motor products. You've done a pretty good job here of explaining, I guess, through the quarters how things are going to work.

But just from a higher level perspective. Just during the transition period how many -- is it going to be any transitory inefficiencies that you guys have to incur on your end? And if there are, is this going to be something that it gets excluded from the operating numbers?

Bob Krakowiak -- Chief Financial Officer

Yes. Thanks for the question, Scott. So, I think, probably, the most important thing for me to point out from a transaction perspective is, if you look at the cash flow statements, so some of the things that -- one of the things that you'll notice is that there's a little bit of a -- there's a movement in the cash flow statement around inventories and buildup of inventories. So we think about the facts, Scott, that we're selling this business, but we are maintaining the -- we're keeping the building so we're transferring the assets.

So anytime you get into a transaction where you are transferring equipment you need to build part banks. So we started that process in the first quarter where we're building inventory and we will continue to build inventory because you've got to move the equipment, they've got to install at the new location, and they got to test it, and they got to go through a process before it's approved where they can begin shipping product. So we've got to have a bank in place in order to facilitate that. So you will see a little bit of a blip from an inventory perspective on the cash flow statement over the next couple of quarters.

And then other than that, just in terms of the cost associated with the transition we will adjust that out of our results.

Operator

Your next question comes from the line of Chris Van Horn with B. Riley FBR.

Chris Van Horn -- B. Riley FBR -- Analyst

I was hoping to -- you'd mentioned the reduction in Electronics component cost, I imagine they have to do with some alternate sourcing or some changes. Can you just get into a little bit more detail there? Are you expecting a different supplier? Or kind of, shift in production, what do you think in there?

Bob Krakowiak -- Chief Financial Officer

Yes. Thanks for the question, Chris. It's very similar if you look at -- I'll give you the comparison to tariffs. So tariffs for us in the second half of last year was running at about -- it was $2.5 million in the second half of the year, so it was running at $1.25 million a quarter in the third quarter and fourth quarter.

And then the team started putting mitigating actions in place and tariffs were $900,000 in the first quarter this year. Still higher then we would like them to be but the team has moved quickly taking mitigating actions and we are seeing the results of it through the P&L. So you'll see the same thing on the Electronics components. So it's really a combination of a number of things.

It will be redesigned of products. It will be using alternative suppliers. It's really four things. It's redesign products, alternative suppliers, existing capacity with current suppliers and then also looking to potentially qualify specific components as automotive spec versus industrial spec which will be able to expand our capabilities in terms of acquiring the necessary products.

So it's really in those four categories and that's how we're going to work that down over the balance of the year.

Chris Van Horn -- B. Riley FBR -- Analyst

OK. Great. And then you mentioned in control devices, gross margins saw some headwinds due to higher warranty costs. Could you get into some detail on that?

Jon DeGaynor -- President and Chief Executive Officer

Chris, we didn't talk about that for this quarter. That was, in fact, previously. We actually have seen progress from an operating standpoint within control devices, ex Shift by Wire volume down. What we talked about previously -- in previous quarters, with some of the operating challenges both warranty and customer quality issues.

And we actually made progress on a quarter-to-quarter basis, Q4 2018 to Q4 or Q1 2018.

Chris Van Horn -- B. Riley FBR -- Analyst

OK. OK. And then you sited, sorry, you sited product mix in electronics. Could you get into more detail on that?

Bob Krakowiak -- Chief Financial Officer

Yes. I mean, overall just -- I think, in terms of product mix, Chris, we've seen overall favorable product mix and if you see, if you look at -- electronics was always been consistent with our expectations in terms of, if you look at the performance of Electronics and we talk about the contribution margins we look at 2.5 to 3 times our EBITDA margins on incremental level.

Chris Van Horn -- B. Riley FBR -- Analyst

OK. Got it. And then just last from me. What are you, including in your guidance around either some retrofit revenue or some OEM revenue on MirrorEye?

Bob Krakowiak -- Chief Financial Officer

So nothing on the OEM side for revenue this year, Chris. The retrofit side. We do have revenue included to retrofit both. We haven't specifically disclosed that amount.

Operator

Your next question comes from the line of DeForest Hinman from Walthausen & Company.

DeForest Hinman -- Walthausen and Company -- Analyst

I wanted to just touch and talk about MirrorEye and then aiming a little bit of a different way than some of the other questioners. Can you talk about the ongoing fleet feedback we received from the fleet partners? And maybe talk about how the system performed in the winter, which I think it's important for the fleet guys to understand maybe a more challenging environment to drive in dust, salt, ice characteristics like that. And what was the feedback?

Jon DeGaynor -- President and Chief Executive Officer

So before -- I just want to say thanks for the question. It's one of the reasons why we did the trials the way we done it, why we have taken the time as to get that feedback. What we've had is fairly consistent positive feedback in particularly with regards to visibility, at night visibility, in rain and visibility in inclement weather like snow. There's certainly been little bit of feedback that has helped us work on improving our display, clarity and some of the ability, for example, to adjust brightness at night.

But overall, the feedback has been extremely positive. And specifically, the feedback of the quality of visibility in inclement conditions has been very positive.

DeForest Hinman -- Walthausen and Company -- Analyst

OK. So just so we understand, I guess, in terms of the fleet partners that we view, have they gone enough length where they have over 12 months of performance? And I'm saying that in regard, they've seen how the system perform in every season, every type of conditioning environment they be facing at a full-year basis?

Jon DeGaynor -- President and Chief Executive Officer

Well, as we talked about, for the first five fleet, that answer is yes, for the ones that we added recently, that answers, no. But that's why it's a measured self fleet trials that's why we add fleets as -- on an incremental basis as opposed to trying to go more aggressively. And because this is a product development activity as much as anything to make sure that we're getting the feedback that we're understanding, what the driver, the ultimate consumer of this product needs. And what his feedback is.

DeForest Hinman -- Walthausen and Company -- Analyst

OK. And then can you just help us understand how that information can be potentially shared with others? All the fleet trials, I guess, confidential in the sense of the results we figured? Or can we take information from those first five people? What they've seen and share it with some of the other people, other than the pilot?

Jon DeGaynor -- President and Chief Executive Officer

Yes, of course. And that comes through us. So we have a team that has been set up specifically to work with the fleets to take that feedback. We have a full-time driver on staff.

So we're translating what the driver says to another driver. And all of that goes back into our product development activity. And we're refining both everything from what our product does to our training materials to our installation activities. So that the next fleet trial have the benefit of the first fleet trials.

But that's done through us and our team.

Bob Krakowiak -- Chief Financial Officer

And DeForest, it's Bob. One thing I would just like to that is there also have been several panels at a number of industry trade shows by our current MirrorEye fleets that are evaluating our technology that are talking about in the public. And we have a number of articles that are available as a result of those event. And we can pass those along to you as well.

DeForest Hinman -- Walthausen and Company -- Analyst

OK. That's helpful. And then maybe just the baseball analogy for those first five fleet partners. I mean, what inning are they in, in terms of figuring out how they are going to roll out potentially the retrofits?

Jon DeGaynor -- President and Chief Executive Officer

Yes. Somewhere in the middle, we're expanding the fleet trials with them as well. And we're continuing to work with them on how it gets rolled into both retrofit or into their OE device.

DeForest Hinman -- Walthausen and Company -- Analyst

I don't know if you broke up there. I think I missed the first part.

Jon DeGaynor -- President and Chief Executive Officer

You asked me what inning, and I said the fifth.

DeForest Hinman -- Walthausen and Company -- Analyst

The fifth. OK. I didn't hear that. And then shifting gears on the share repurchase side.

You're talking about working with the OEs and potentially ramping retrofits maybe with some larger fleet operators. I'm just thinking out loud, does that potentially put us in a situation where there is a continuous blackout on share repurchases? And if so, is there any type of program we can put in place where we could be buying within a blackout period or just help us understand.

Bob Krakowiak -- Chief Financial Officer

Yes. There's nothing related to any of the commercial negotiations with our customers that would preclude as we're entering into a share repurchase program. What's then prohibited for us is the negotiation with SMP on the divestiture. So that kept us out of market and then we have our normal quarterly trading windows as well.

But with respect to my comments, I just want to reiterate obviously, we're as frustrating as everyone that we have been able to go into the market and buy back our stock but we remain fully committed to actual program and the timeframe that we announced last year.

DeForest Hinman -- Walthausen and Company -- Analyst

OK. Sorry, I guess, I forgot to ask this one last question. On the fleet work that we've done for the pilots, I talked about sharing the information with the other fleet operators, but are we allowed to share that with the OEs as they work on their decision?

Jon DeGaynor -- President and Chief Executive Officer

Yes. It's part of our development activity. There's no embargo on that. But that's part when you say it's part of our product development activity.

We're having those conversations with the OE's.

Operator

[Operator instructions] Your next question comes from the line of Gary Prestopino from Barrington Research.

Gary Prestopino -- Barrington Research -- Analyst

With the fact that you said you got -- you're going to have some retrofit revenues this year. So as some of those fleets translate I assume that you got a signed contract or number of signed contracts? Is that enable you to start generating revenues in the back half of the year?

Bob Krakowiak -- Chief Financial Officer

We don't -- the magnitude of the contracts that we have with the fleets are not material. Where we would disclose that. So it's an ongoing expansion of the fleet trials with these 15 fleets that we've talked about and with others that we continue to work with.

Gary Prestopino -- Barrington Research -- Analyst

OK. And then what inning are you in, in terms of the electronics divestiture or the business are you looking to take some action on?

Jon DeGaynor -- President and Chief Executive Officer

As we said in the script Gary, we will have a conclusion on the strategic analysis in this year. So that's how we're looking at it.

Operator

I'm showing, there are no further questions at this time. I would now like to turn the conference back to Jon DeGaynor.

Jon DeGaynor -- President and Chief Executive Officer

Yes. I want to thank everybody for their participation in today's call. I can assure you that our company is committed to continue to drive shareholder value through strong operating results, profitable new business and focused upon our available resources. This management team will respond efficiently and effectively to manage and control the variables that we can impact and continue to drive strong financial performance.

We're confident that our actions will result in continued success for 2019 and beyond. And we look forward to speaking to you at the next call. Thank you.

Operator

[Operator signoff]

Duration: 46 minutes

Call participants:

Matt Horvath -- Director of Investor Relations

Jon DeGaynor -- President and Chief Executive Officer

Bob Krakowiak -- Chief Financial Officer

Justin Long -- Stephens Inc. -- Analyst

Scott Stember -- C.L. King -- Analyst

Chris Van Horn -- B. Riley FBR -- Analyst

DeForest Hinman -- Walthausen and Company -- Analyst

Gary Prestopino -- Barrington Research -- Analyst

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