Stocks stayed mixed in late trading Wednesday, as blue chips continued to lead. The Dow Jones industrial average climbed 0.9%. The S&P 500 rose 0.5%. It has retraced Tuesday's loss and then some. But the Nasdaq was down 0.4% as Apple (AAPL) continued to weigh. Apple makes up about 10% of the Nasdaq. Turnover was still tracking higher on both major exchanges. Motorola Solutions (MSI) rose 2% to its best levels since January 2008. It's now 6% past a