A handful of

Dow components made their way onto Instinet's list of most active stocks after hours Monday, but tech shares still held their own, with

WorldCom

(WCOM)

leading all issues in terms of volume.

Shares of the long-distance phone service provider were ticking up 0.5% to $8.17 in extra trading. WorldCom dropped 15.4% in the regular session.

Tyco

(TYC)

was slipping 0.5% to $29.74. The conglomerate slid 16.1% in regular action after reports on

RealMoney.com

and then

The Wall Street Journal

pointed out that the company had made billions of dollars of acquisitions during the last three years without detailing the deals in press releases.

Late in the session, Standard & Poor's cut several ratings for Tyco and its Tyco Capital finance arm. S&P said it might change the ratings again, but the firm said Tyco has offered satisfactory answers to questions about its accounting practices.

Among other active issues,

American Home Products

(AHP)

was unchanged at $63.40. The

S&P 500 Depositary Receipts

(SPY) - Get Report

were flat at $109.82.

Cisco

(CSCO) - Get Report

was up 0.4% to $18.38, and the

Nasdaq 100 Tracking Stock

(QQQ) - Get Report

was level at $36.92.

Sun Micro

(SUNW) - Get Report

was off 0.2% to $10.38.

Microsoft

(MSFT) - Get Report

and

Oracle

(ORCL) - Get Report

were fractionally higher.

United Technologies

(UTX) - Get Report

and

Procter & Gamble

(PG) - Get Report

, both members of the Dow Jones Industrial Average, were among the top-20 volume movers after the close, but both stocks were unchanged from their 4 p.m. EST closing levels.