Techs Break Losing Streak

An analyst's upgrade of chip stocks boosted the sector. On deck for Tuesday: Wal-Mart's earnings report and U.S. retail sales data for July

Stocks in the Nasdaq finished Monday with modest gains, breaking a string of six straight losing sessions, after a brokerage house upgraded its investment ratings on key semiconductor names including Intel Corp. (INTC ). Blue-chips drifted down slightly.

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