The Smaller the Better

The average S&P 500 stock is up 3.50% so far in 2010.  We broke the index into 10 deciles (10 groups of 50 stocks) based on market cap and calculated the average YTD percent change of the stocks in each decile to see how a company's size has impacted performance so far this year.  As shown below, the 50 biggest stocks in the S&P 500 are up an average of 2.4% year to date.  The 50 smallest stock in the index are up an average of 6.5%.  In general, the bigger the stock, the smaller the gain so far in 2010.

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