Stocks staggered early Thursday but recovered much of the lost ground in the session's final 90 minutes. However, top-rated stocks suffered fairly heavy damage. The Nasdaq fell 0.9% after being down as much as 2%. The index undercut the low made Monday when the correction light came on. The S&P 500 and the Dow Jones industrial average each shaved 0.2%. The NYSE composite was flat. The IBD 50 slid 1.7%. Volume rose across the board. While the late