
Stocks ended mixed as investors weighed the latest corporate results against global economic and debt concerns. Weakness in tech stocks dragged the broader market down. Dell plunged 10% after issuing a disappointing sales outlook late Tuesday, while rival Hewlett-Packard slipped by 3.7% on a broker downgrade. Cisco and Intel both lost about 1%. NetApp and JDSU dropped after-hours as investors who found disappointing figures in both of the technology suppliers’ financial updates. Implied volatility inched lower on moderate trading volumes.