Investors tend to get drawn to these high-flying stocks, which made me curious whether these stocks tend to keep going higher for the rest of the year or if they tend to give back some of their gains. Stocks that Doubled vs. the OthersFor this study, I went back 10 years using the list of current S&P 500 stocks and found the stock's year-to-date return around this time of year (mid-August). Based on this analysis, it's fine to chase these high-flying stocks. Surprisingly, when things went wrong, the high-flying stocks did not crash any harder than other stocks. The stocks in the middle also performed well, averaging a 20% return with seven of the nine stocks beating the SPX.