Wall Street down on euro zone worries, technicals

Stocks fell on Friday as the euro zone's debt problems revived worries about the broader impact and the S&P 500 was below a key technical level.

Shares in clothing retailer Gap Inc (GPS.N) fell 16 percent to $19.60 after it slashed its full-year profit outlook late on Thursday, saying higher price tags will not be enough to offset rising cotton costs.