For many investors, the main point of stock picking is to generate higher returns than the overall market. But the risk of stock picking is that you will likely buy under-performing companies. We regret to report that long term Siltronic AG (ETR:WAF) shareholders have had that experience, with the share price dropping 47% in three years, versus a market decline of about 7.4%. Furthermore, it's down 10% in about a quarter. That's not much fun for holders. We note that the company has reported results fairly recently; and the market is hardly delighted. You can check out the latest numbers in our company report.

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.

Check out our latest analysis for Siltronic

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Siltronic saw its EPS decline at a compound rate of 5.6% per year, over the last three years. This reduction in EPS is slower than the 19% annual reduction in the share price. So it's likely that the EPS decline has disappointed the market, leaving investors hesitant to buy.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

This free interactive report on Siltronic's earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

What About Dividends?

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. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. We note that for Siltronic the TSR over the last 3 years was -41%, 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

Siltronic shareholders are up 4.1% for the year (even including dividends). But that return falls short of the market. If we look back over five years, the returns are even better, coming in at 9% per year for five years. It's quite possible the business continues to execute with prowess, even as the share price gains are slowing. 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. Even so, be aware that Siltronic is showing 3 warning signs in our investment analysis , and 2 of those make us uncomfortable...