Investors again had news, mostly tech related, after the close to influence extra trading, but volume showed a little more conviction than in the prior two extended sessions this week.

Nvidia

(NVDA) - Get Report

, the graphics chip maker, was slipping 1% to $37.67 after the company beat

first-quarter earnings estimates by a penny.

ImClone Systems

(IMCL)

was gaining 2.8% to $11.20 on word the company's CEO

would step aside and let his brother take the helm.

Volume was a little more moderate. In the first 90 minutes of trading, around 3 million shares changed hands among the 20 most active stocks on the Instinet platform.

WorldCom

(WCOM)

was adding another 2.4% to $1.69 after gaining 16% in

regular trading. The big move came after the company said it would eliminate its tracking stock structure in July, marking the end of the

MCI Group's

(MCIT)

shares.

The

Nasdaq 100 Unit Trust

(QQQ) - Get Report

was slipping 0.2% to $31.33.

Intel

(INTC) - Get Report

was off 0.6%, and

Dell

(DELL) - Get Report

was down 0.3%.

Cisco

(CSCO) - Get Report

was also lower by 0.3%, while

Applied Materials

(AMAT) - Get Report

was falling 1.8%.

Oracle

(ORCL) - Get Report

was losing 0.5%, and

Microsoft

(MSFT) - Get Report

was flat. The

S&P 500 Depositary Receipts

(SPY) - Get Report

were also unchanged.

Gap

(GPS) - Get Report

, which was crushed in regular trading following news that its CEO would leave the company when a replacement is found, tacked on a penny to $13.56 after the close.