Giga-tronics ( GIGA) rose 43% after the company said that its subsidiaries received a contract from the Israel Ministry of Defense worth about $2 million. The Ministry of Defense order calls for high-performance synthesizers and VXI slots, which will be used in military communications systems. Shares were trading up $2.04 to $6.75. Shares of CDW ( CDWC) rose 7% after the computer supplier reported second-quarter earnings that topped forecasts. The company earned $67.1 million, or 80 cents a share, on sales of $1.54 billion. Analysts were expecting earnings of 76 cents a share on sales of $1.52 billion. A year ago the company earned $58.3 million, or 67 cents a share, on sales of $1.38 billion. In the most recent period, the company posted average daily sales of about $24.1 million, a jump of 11.3% over last year's average daily sales of $21.6 million. Shares were trading up $4.09 to $60.68. Other technology movers included Lucent Technologies ( LU), down 10 cents to $3.03; Microsoft ( MSFT), up 53 cents to $26.08; Intel ( INTC), up 40 cents to $28.63; Cisco Systems ( CSCO), up 30 cents to $19.95; Oracle ( ORCL), down 6 cents to $13.84; Sirius Satellite Radio ( SIRI), up 6 cents to $6.90; Yahoo! ( YHOO), up 92 cents to $37.50; Applied Materials ( AMAT), up 33 cents to $17.55; Apple Computer ( AAPL), up $1 to $42.49; Dell ( DELL), up 87 cents to $41.51; and Sun Microsystems ( SUNW), up 2 cents to $3.71.