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MIDDAY MARKETS: Dow breaks 10,000

Expectations were running high at midday as investors bid up the technology stocks that are set to report quarterly results after the closing bell. Blue chip stocks were also on the rise; the Dow Jones industrial average broke the 10,000-point barrier, gaining 229.67 points to 10,074.82.

The Nasdaq rose 101.31 points to 1,847.02. The Inter@ctive Week @Net Index rose 14 points to 167.10.

Mobile phone maker Motorola (NYSE: MOT) rose 96 cents to $12.46 ahead of its first-quarter earnings, due after the market close today. E*Trade (NYSE: ET) was up 95 cents to $7.18.

Sonus Networks (Nasdaq: SONS) jumped a whopping 27 percent, or $4.40 to $20.41, in anticipation of its earnings report. Analysts are expecting the company to beat estimates and give bullish projections.

RSA Security (Nasdaq: RSAS), up $2.48 to $25.48, matched earnings expectations for the first quarter and announced a deal with a major cell phone maker, sending shares up 10 percent Tuesday.

Getty Images (Nasdaq: GETY), up $2.12 to $17.05, warned Tuesday that its first quarter wouldn't meet Wall Street's expectations and said all previous financial projections aren't accurate.

Cypress Semiconductor (NYSE: CY), up 93 cents to $16.33, will miss lowered first-quarter estimates, the company said Tuesday, adding that things aren't looking good for the second quarter either.

Amazon (Nasdaq: AMZN) was up $1.97 to $13.15, AOL Time Warner (NYSE: AOL) rose $1.27 to $40.74 and Yahoo (Nasdaq: YHOO) gained $1.16 to $16.80.

Cisco Systems (Nasdaq: CSCO) picked up $1.13 to $15.79, Intel (Nasdaq: INTC) increased $1.21 to $24.41, Oracle (Nasdaq: ORCL) rose 73 cents to $14.78 and Microsoft (Nasdaq: MSFT) was up $1.96 to $59.11.

ZDII staff and Reuters contributed to this roundup.