National Semiconductor ( NSM), a maker of microprocessors, is scheduled to report its quarterly numbers today. Analysts expect the company to post a fourth-quarter loss of 3 cents a share, which would be a dramatic decline from the year-ago quarter in which it earned 68 cents a share.

Ahead of the earnings report, the Santa Clara, Calif., company also said it would acquire Swedish mobile-phone maker Wireless Solutions in a deal worth about $23.5 million.

In economic news, the initial jobless claims report is due out before the bell. The data provide a snapshot of labor market conditions and could factor in during today's trading session.

Economic Data

( Forecasts are from Reuters . Times are Eastern. For a longer-term economic calendar and more, see TSC's Economic Databank. )

  • 8:30 a.m.: Initial Jobless Claims for the week ended June 2. Source: Labor Department. Forecast: 417,000. Previous: 419,000. Four-week average: Forecast: n.a. Previous: 402,500.

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