Updated from 1:29 p.m.

Shares of

Jamdat Mobile

(JMDT)

were among the worst-performing technology stocks Tuesday, falling 26% after the company posted third-quarter results and warned that fourth-quarter earnings would fall short of expectations.

The wireless entertainment publisher posted break-even earnings during the third quarter on sales of $9.5 million. Excluding stock compensation and other intangibles, the company earned 21 cents a share. Looking ahead, the company forecast a fourth-quarter adjusted profit of 4 cents a share on sales of $10.6 million. Analysts polled by Thomson First Call had been expecting earnings of 12 cents a share. Shares of Jamdat, which went public in September at $16, traded down $8.41 to $23.94.

Shanda Interactive Entertainment

(SNDA)

rose 4.9% after the China-based company posted third-quarter earnings above expectations. The online games operator posted a profit of 26 cents a share on sales of $44.9 million. Analysts were expecting earnings of 21 cents a share. Earnings were 167% higher than a year ago while sales were up 133% vs. a year ago. Shares traded up $1.62 to $34.71.

Shares of

Tetra Tech

(TTEK) - Get Report

fell 5.5% after the company warned for the second time in two months that fourth-quarter results would fall short of expectations. The provider of consulting and technical services now expects to post a loss of 16 cents to 21 cents a share when it reports results on Nov. 17. It expects sales to be in line with its previous guidance of $260 million to $285 million. Analysts had been expecting earnings of 1 cent a share on sales of $271.5 million. In September, Tetra Tech's shares got hammered after the company warned that operating income would be significantly below its previous forecast of 24 cents a share. Shares traded down 78 cents to $13.34.

Aeroflex

(ARXX)

fell 2.9% after the company posted first-quarter sales below expectations and warned of a second-quarter shortfall as well. Excluding items, the maker of electronic components earned 10 cents a share on sales of $109.2 million. Analysts were expecting earnings of 10 cents a share on sales of $114.4 million. Looking ahead, the company forecast earnings of 10 cents a share on sales of $109 million to $110 million. Analysts had been expecting earnings of 13 cents a share on sales of $121.5 million. Shares traded down 34 cents to $11.56.

Shares of

Electronic Arts

(ERTS)

fell 0.9% after the company cut prices on several of its most popular sports video games. The price reductions will bring the company's Madden NFL 2005, NBA Live 2005 and NHL 2005 game titles closer to competitors' pricing. The price cuts are effective today. Shares traded down 43 cents to $46.97.

Other technology volume leaders included

Nasdaq volume leaders included

Microsoft

(MSFT) - Get Report

, up 49 cents to $29.77;

Cisco

(CSCO) - Get Report

, down 22 cents to $19.75;

Lucent

(LU)

, up 2 cents to $3.67;

Intel

(INTC) - Get Report

, down 15 cents to $23.08;

Research in Motion

(RIMM)

, up 95 cents to $78.91;

Sirius Satellite Radio

(SIRI) - Get Report

, down 5 cents to $3.89; and

Taser International

(TASR)

, down $3.12 to $51.