US stocks fell on Thursday, erasing most of the S&P 500's year-to-date gain, as banking and technology stocks led the selloff. The benchmark S&P 500 turned nearly flat for the year after falling almost 1 percent this week as many of the market's biggest trading favourites lost their momentum. "The decliners once again are the tech and small-cap names. The decline is not as steep as it was earlier this week, but the continued weakness we see in these sectors suggests that investors are becoming more cautious as money continues to leave the stock market," said Ryan Detrick, senior technical strategist at Schaeffer's Investment Research in Cincinnati, Ohio.
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Big tech names also dropped, including Google Inc, off 1.6 percent at $1,114.28, Microsoft down 1.1 percent at $39.36, and Amazon.com down 1.4 percent at $338.47.