For many investors, the main point of stock picking is to generate higher returns than the overall market. But if you try your hand at stock picking, you risk returning less than the market. We regret to report that long term Rentokil Initial plc (LON:RTO) shareholders have had that experience, with the share price dropping 36% in three years, versus a market return of about 17%. Furthermore, it’s down 13% in about a quarter. That’s not much fun for holders.

Now let’s have a look at the company’s fundamentals, and see if the long term shareholder return has matched the performance of the underlying business.

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In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. 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.

During the three years that the share price fell, Rentokil Initial’s earnings per share (EPS) dropped by 4.8% each year. This reduction in EPS is slower than the 14% annual reduction in the share price. So it’s likely that the EPS decline has disappointed the market, leaving investors hesitant to buy.

You can see below how EPS has changed over time (discover the exact values by clicking on the image).

We’re pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. As it happens, Rentokil Initial’s TSR for the last 3 years was -33%, which exceeds the share price return mentioned earlier. And there’s no prize for guessing that the dividend payments largely explain the divergence!

Rentokil Initial shareholders are down 11% for the year (even including dividends), but the market itself is up 5.8%. 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. Regrettably, last year’s performance caps off a bad run, with the shareholders facing a total loss of 4% per year over five years. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. To that end, you should learn about the 3 warning signs we’ve spotted with Rentokil Initial (including 1 which makes us a bit uncomfortable) .