Stocks initially extended yesterday's sell-off but have shown a significant recovery attempt over the course of the trading day on Friday. The major averages have climbed well off their worst levels of the day, with the Nasdaq and the S&P 500 reaching positive territory.Currently, the major averages are turning in a mixed performance. The Nasdaq is up 66.30 points or 0.3 percent at 22,936.66 and the S&P 500 is up 0.97 points or less than a tenth of a percent at 6,738.46, although the narrower Dow remains d ...