Following another day of losses in regular trading, investors were taking it easy after the close Monday, but that didn't stop them from making big winners and losers out of a few select stocks.

Volume was on the light side. In the first hour of extended trading, around 1.8 million shares changed hands among the top-20 volume movers on the Instinet platform.

WorldCom

(WCOM)

was the most active stock, gaining 3% to $2.42 on the heels of a 28% loss in regular action.

Business-to-business software maker

FreeMarkets

(FMKT)

was among the top percentage gainers, trading up 8.7% to $21.19. After the close, the company posted stronger-than-expected quarterly results and offered optimistic guidance for the rest of the year. Integrated circuits maker

Globespan Virata

(GSPN)

was up 6.4% to $9.20 following its quarterly report.

Terayon

(TERN)

, a provider of broadband access systems, was plunging 19.7% to $3.95 as investors punished the company for its lowered second-quarter guidance.

Rudolph Technologies

(RTEC) - Get Rudolph Technologies, Inc. Report

slid 5.3% to $28.75 on news its first-quarter profits plunged from the year-ago period.

Technology names were making up the majority of the stocks on the list of most active issues.

Oracle

TheStreet Recommends

(ORCL) - Get Oracle Corporation Report

was up 0.4%, and

Nextel

(NXTL)

was flat.

Intel

(INTC) - Get Intel Corporation (INTC) Report

was off 0.1%, and

Siebel

(SEBL)

was unchanged.

Cisco

(CSCO) - Get Cisco Systems, Inc. Report

was tacking on 0.1%, and

Microsoft

(MSFT) - Get Microsoft Corporation (MSFT) Report

was better by 0.3%. The

Nasdaq 100 Unit Trust

(QQQ) - Get Invesco QQQ Trust Report

was flat.