If you are building a properly diversified stock portfolio, the chances are some of your picks will perform badly. Long term Stanley Black & Decker, Inc. (NYSE:SWK) shareholders know that all too well, since the share price is down considerably over three years. Unfortunately, they have held through a 55% decline in the share price in that time. The falls have accelerated recently, with the share price down 11% in the last three months.

After losing 3.7% this past week, it's worth investigating the company's fundamentals to see what we can infer from past performance.

Check out our latest analysis for Stanley Black & Decker

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Stanley Black & Decker has made a profit in the past. However, it made a loss in the last twelve months, suggesting profit may be an unreliable metric at this stage. Other metrics may better explain the share price move.

With revenue flat over three years, it seems unlikely that the share price is reflecting the top line. There doesn't seem to be any clear correlation between the fundamental business metrics and the share price. That could mean that the stock was previously overrated, or it could spell opportunity now.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

Stanley Black & Decker is a well known stock, with plenty of analyst coverage, suggesting some visibility into future growth. So we recommend checking out this free report showing consensus forecasts

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. We note that for Stanley Black & Decker the TSR over the last 3 years was -51%, which is better than the share price return mentioned above. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

Investors in Stanley Black & Decker had a tough year, with a total loss of 4.3% (including dividends), against a market gain of about 34%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. However, the loss over the last year isn't as bad as the 7% per annum loss investors have suffered over the last half decade. We'd need to see some sustained improvements in the key metrics before we could muster much enthusiasm. It's always interesting to track share price performance over the longer term. But to understand Stanley Black & Decker better, we need to consider many other factors. Even so, be aware that Stanley Black & Decker is showing 2 warning signs in our investment analysis , and 1 of those is potentially serious...