LONDON -- The markets have been flying high so far in 2013 -- even after their losses of the past couple of days. While some think this bull market has just about run its course, these three stocks suggest that the charge is far from over.

Old Mutual (OMU -1.50%)
Fund management firms such as Old Mutual thrive in bull markets. This does not seem to have been reflected in the Old Mutual share price. With the FTSE 100 ahead by 11% this year, Old Mutual is up "just" 19.9%. By comparison, Schroders is up 45.3%, and Aberdeen Asset Management is 29.4% ahead.

Today, Old Mutual shares are available at 11.1 times forecast earnings per share for 2013. It is worth noting that a big increase in profit is needed to deliver this. Even then, Old Mutual is still expected to make less than it did in 2007. With the FTSE 100 trading around 10-year highs, there remains little real excitement in Old Mutual's rating.

RSA Insurance Group (RSA)
RSA Insurance Group has disappointed shareholders in 2013. Not only did the company announce a dividend cut with its final results in February, but the shares have also failed to join in the recent broader rally. In the last month, shares in RSA are up 2.4%. The FTSE 100 is 4.1% ahead in that time.

In the past, RSA has thrived in market advances. However, that has clearly not happened during this new bull market. This year so far, shares in RSA are down 9.2%. That puts RSA among the 15 worst-performing FTSE shares for the year.

RSA is forecast to earn 12.3 pence per share in 2013 and yield 5.4%.

Rio Tinto (RIO 2.50%) (RIO 2.25%)
Shares in the FTSE's megaminers have fallen this year. Of these, Rio Tinto is one of the biggest losers, down 17.4%. You might think that in a rampant bull market, no blue-chip share would have put in such a poor performance. But unfortunately for Rio, the price of the metals that it produces has been falling. This has led investors to reduce their profit expectations for the company.

Rio shares today trade at 8.2 times forecast earnings for 2013. The prospective dividend for 2013 is 3.9%. According to the average of published forecasts, a 12.7% EPS increase is expected for 2014. That equates to a 2014 price-to-earnings ratio of 7.2, with a yield of 4.3%.

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