Ladies and gentlemen, thank you for standing by, and welcome to the Yirendai Second Quarter 2019 Earnings Conference Call. [Operator Instructions] I would now like to hand the conference over to your first speaker today, Ms. Lydia Yu. Thank you. Please go ahead.
Lydia Yu -- Investor Relations Manager
Thank you, and welcome to Yirendai's second quarter 2019 earnings conference call. Today's call features a presentation by the Founder, Chairman, and CEO of CreditEase and CEO of Yirendai, Mr. Ning Tang; our Senior VP of Corporate Business Development, Mr. Dennis Cong; our Board of Director and CRO, Mr. Huan Chen; Ms. Wei Wang, our CEO of Yiren Credit; Ms. Xiao Shang, our CEO of Yiren Wealth; and Ms. Joanne Liu, our CFO of Yirendai will join the presenters in the Q&A session.
Before beginning, we will like to remind you that the discussions during this call contain forward-looking statements made under the safe harbor provisions of the US Private Securities and Litigation Reform Act of 1995. Such statements are subject to risks, uncertainties, and factors that can cause actual results to differ materially from those contained in any such statements. Further information regarding potential risks, uncertainties or factors is included in Yirendai's filing with the US Securities and Exchange Commission. Yirendai does not undertake any obligation to update any forward-looking statements, except as required under applicable law.
During the call, we will be referring to several non-GAAP financial measures as supplemental measures to review and assess our operating performance. These non-GAAP financial measures are not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with the US GAAP. For information about these non-GAAP measures and a reconciliation to GAAP measures, please refer to our earnings press release.
I will now pass it on for our CEO, Ning, for opening remarks.
Ning Tang -- Chief Executive Officer
Thank you all for attending our second quarter 2019 earnings conference call. I'm pleased to announce that we have achieved another solid quarter of operation in both credit and wealth management businesses. In particular, we gained strong momentum in working with our bank partners to diversify our funding sources.
This quarter, on the credit side, quarter-over-quarter loan originations remained flat as we maintained our focus on asset quality. As of September 2019, the line of credit we have obtained from our institutional partners has increased from RMB19 billion in Q1 2019 to close to RMB30 billion. We are now working with approximately 10 partners, including leading joint stock and city commercial banks. We expect loan origination funded by institutional partners to reach approximately 30% by the end of this year.
In addition, we have also started to gain access to PBOC credit system through our institutional funding partners, which will not only allow us to obtain detailed credit reports on the real-time basis to enhance our loan application underwriting efficiency, but will also significantly improve our delinquency management and collection efforts.
To further expand our institutional relationships, we have started to offer online lending solutions to our bank partners. We have delivered our first online lending enabling solution to Bank of Ningxia, in which, using our fintech expertise in online lending and risk management, qualified customers can easily apply for and obtain a loan online through the bank's mobile app. In the second half of 2019, we will focus on high-quality asset growth, expanding institutional partnerships, as well as diversifying our product portfolio to better serve the consumption needs of our borrowers.
On wealth management, I'm pleased to note that we have achieved significant milestones this quarter. We launched our new brand, Yiren Wealth, this July. As part of our rebranding campaign, we also released a detailed asset allocation guide for the mass affluent population at first in China. The guide is based on experience and knowledge that we've accumulated in the wealth management industry over the past 10 years. This year, a top strategic initiative for us is driving GMV of non-P2P products, including bank wealth management products, mutual funds and insurance.
I'm pleased to note that in just over 60 days, our GMV for bank wealth management products past RMB100 million mark. For mutual fund, we newly launched the various mutual fund portfolios targeted for different investor needs. In the first half of 2019 compared to 2018, we noted a significant transition in the investment of money market funds to mutual fund portfolios. In insurance, we have started to offer more one-on-one consultation and have noted an increase in longer term and the larger ticket size insurance products. We expect to see further traction of our investors AUM into non-P2P products.
Finally, on regulatory update, we have increased our registered capital to RMB1 billion to prepare ourselves for the potential upcoming regulatory trial program. At the same time, we will also explore opportunities to strategically invest or acquire financial licenses to hedge regulatory uncertainties.
Thank you all. Now, I'll turn the call over to Dennis, our Senior VP of Corporate Development, to review our second quarter's business results.
Yu Cong -- Chief Financial Officer
Thanks, Ning. Hello, everyone. On the credit business side, total volume of loan origination for the quarter was RMB9.7 billion with about 35.9% of loan volume coming from repeat borrowers. In terms of product mix, about 97.9% of the loan sales are unsecured consumer loans and the rest are secured loans and SME lending. The accumulated number of registered borrowers we served reached 83 million and cumulative number of borrowers served is close to 4.5 million as of June 30, 2019.
On institutional funding, currently close to 20% of new loan originations are funded through bank partners and we expect that close to 30% of loans originated to be funded by our institution partner by the end of the year. Our wealth management business as of June 30, 2019, we have served close to 2.2 million investors cumulatively. Total number of active investors in second quarter of 2019 was close to 680,000 with total AUMs for Yiren Wealth at RMB43.6 million as of June 30, 2019. Average AUM per investor reached RMB149,000 and average investment term for P2P product has increased to 15.1 month, indicating a highly speaking and loyal Investor Day despite persistent industry uncertainties. We're also seeing good traction with non-P2P wealth management products. AUM of non-P2P products was RMB354 million in the second quarter of 2019. In the third quarter of 2019, we will launch a pilot telemarketing program to provide professional investment insurance and wealth management advice to our investors and further grow our non-P2P business.
For our financial update, our focus on the key items of our business operation and financial performance, you can refer the detailed financial results to our earnings release. Total net revenue was RMB2.2 billion during the quarter. Net revenue take rate, which refers to total net revenue net of allowance for contract asset, is 17.7% for second quarter 2019 as compared to 16.4% in the last quarter. The increase in revenue take rate is mainly due to our product mix shift, as well as some of the wealth management business we assumed through the Ocean acquisition. This quarter, we maintain our contribution to the credit assurance program at 14% to ensure adequate coverage. Our credit assurance fund is funded with the total balance of RMB7 billion as of June 30, 2019, which is equivalent to 13% of total performing loans covered by the credit assurance program.
On the balance sheet side, as of June 30, 2009, our cash and cash equivalents were RMB 2.7 billion, the balance of health to maturity investment RMB9.5 million and the balance available for self-investment were RMB387.5 million. As of June 30, 2019, our usable cash maintained at a healthy level of RMB 3.1 billion.
For business outlook, the uncertain industry environment makes it difficult to provide an accurate outlook for loan origination for the full year; however, we do expect loan origination to ramp up in the third and fourth quarter of 2019 as institutional funding increase.
Now, I will pass it on to Huan, our CRO and Board of Director, for an update on our risk business.
Chen Huan -- Chief Risk Officer
Thanks, Dennis. From a credit performance and risk management side, we always saw a slight volatility in early delinquency this quarter due to industry environments, as well as declining loan balance. Our vintage data shows that the risk performance of new loans originated the post of Q3 2018 continuously improved with M3 Plus net charge-off rate declining in the second half of 2018 due to origination of more stringent risk policies in August of last year. To stabilize risk levels, we have been actively managing our product portfolio to reduce risk exposure, and using more data sets to lower [Indecipherable] indebted risk. This quarter, we successfully used litigations [Phonetic] to collect back defaulted [Phonetic] loans. We also expected our lease performances will keep improving when we are using more institutional funding, which makes PBOC credit bureau data available for underwriting.
This concludes our prepared remarks. We are ready for Q&A.
Questions and Answers:
Operator
[Operator Instructions] Your first question comes from the line of Joe Shu [Phonetic] from Morgan Stanley. Please go ahead. Excuse me, Joe, your line is now open, please go ahead.
Joe Shu -- Morgan Stanley -- Analyst
Hello. Yeah. Good morning, management. And my first -- I have two questions, the first question, can the management share some more information on the online lending solution for Ningxia Bank, like what kind of services are included in this package, and any other banks were negotiating at this moment regarding to this kind of business, and when does the management expect to see some meaningful revenue contribution from this business segment? And my second question is on the regulatory front. As I noticed in a report that we have raised the registration capital to RMB1 billion [Phonetic], and is there anything else we need to do to get prepared for that registration, and any other updates from the regulator -- yes, any other updates from the regulator recently? Thank you.
Ning Tang -- Chief Executive Officer
Let me first address the regulatory environment question. Yes, and we've increased our registered capital in preparation for upcoming -- now it's called the trial program, yes, not registration, but it's similar, meaning, a regulatory system for online lending industry, and we believe we've been in full compliance since -- yes, when the regulatory measures came out, and we are ready for this trial program and we expect it will be later this year or next year.
Chen Huan -- Chief Risk Officer
And for Bank of Ningxia operations [Phonetic], when we met them one year ago, they have less strong [Phonetic] demand to the consumer lending business online, and the problem with us on to -- we are also providing the whole package, the turnkey solutions for lend -- to online consumer lending. So we're providing the whole system, the whole underwriting capability and the whole lifecycle management capabilities to Bank of Ningxia through online lending. And the service is online in early this year and after several months of testing in Q3 this year, already they start to do more acting for this product and we see very significant increase of the sales warrants in Q3 this year, and from bank they also want to do more marketing for this product and make it some big consumer loan product for customers, and currently we -- because this is also a new business for us, so we will take more time focusing on optimize and improve our capabilities to cooperate with bank. So I think Bank of Ningxia is only bank products for us to providing this project.
Yu Cong -- Chief Financial Officer
So from revenue contribution perspective, the collaboration with Ningxia Bank is more strategic approach. We will not look for revenue volume for this business, but rather due to relationship, so that we can bring Ningxia Bank as our institutional funding partners. So the service itself won't be significant revenue contribution, but rather potentially build stronger strategic relationship with the bank institutions that would really help us when we expand our funding sources into these leading banks.
Joe Shu -- Morgan Stanley -- Analyst
Okay. Thank you. That's very helpful.
Operator
[Operator Instructions] Thank you. Your next question comes from the line of Alex Ye from UBS. Please go ahead.
Alex Ye -- UBS -- Analyst
Hi. Good morning, management. Thanks for taking my questions. I have a question on asset quality outlook. So we have seen year-to-date many banks have commented that they are seeing an uptick in their credit asset quality within the whole industry due to the increasing risk of borrowers taking multiple loans from different process. So I'm wondering is there any new trend that we have seen in this front, and given many of our borrowers properly shared [Indecipherable] with those of the bank customers like they're also credit cardholders. So I wonder is there any measure we can take to better control the asset quality and potential deterioration in asset quality. Thanks.
Chen Huan -- Chief Risk Officer
Yes. I think last year we already see that our -- there might be some decelerating industry environment. So in Q3 last year, we already start to take more stringent quality control, and so we do see that some market risk let more and more borrowers, they are taking multiple loans from different lenders, and some borrowers may go into [Indecipherable]. So we picked some more data facts including we also are assessing to the National Internet Finance Association; they have a data sharing platform. We are also taking these data from the platform to identify the quality of the number of the loans the borrowers taken in less than one month or three months. So we will proactively reject some of borrowers who will take too much loans and make too many applications in different platforms. So that's why we could see some improvement things, Q3 last year, we see the early sequence rates based on linked data, the income rate -- the delinquency data is equating [Phonetic]. So that give us more confidence that we can keep our risk performance and our asset quality track and it can be even better in the second half of this year.
Alex Ye -- UBS -- Analyst
Okay. Thank you.
Operator
[Operator Instructions] Thank you. There are no further questions at this time. I would like to hand the conference back to today's presenters. Please continue.
Lydia Yu -- Investor Relations Manager
Thanks, everyone, for joining us. This concludes our call for today.
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