LONDON -- The U.K. markets treaded water for most of the day, with the FTSE 100 ending 37.1 points off, or 0.6%, at 6,650.1. The Techmark index of leading technology stocks finished below the day's best, but still up 40 points, 0.9%, at 4,763.4.

The latest news from OPEC was perceived as positive, and

BP Amoco

(BPA)

edged forward 2p, or 0.4%, to 515 ($8.24), and

Shell

recovered from an early fall to close 1.75p higher, or 0.4%, at 477.

Tech stocks were volatile, with the wide share-price spreads and the lack of liquidity producing wild gyrations.

Baltimore Technologies

(BALTV)

traded between a low of 95.00 pounds and a high of 102.90 pounds prior to closing up 428p, or 4.4%, at 102.00 pounds. Baltimore said today it is planning a 10-for-1 share and its ADR ratio will be changed to two shares per ADR from the current one share per ADR.

Telecom stocks flirted with higher levels, but eventually eased back to show little change on balance.

Vodafone AirTouch

(VOD) - Get Report

ended unchanged at 364.5, while

BT

(BTY)

surrendered an early 20p gain to close 20p lower, or 1.6%, at 12.41 pounds.

Colt Telecom

(COLTY)

, some 63p higher in early trading, eventually settled 13p, or 0.4%, lower at 33.99 pounds.

Kingston Communications

moved within relatively narrow limits after details of its mobile phone deal with

BT Cellnet

, and finished 5p higher, or 0.5%, at 11.03 pounds.

Barclays

(BCS) - Get Report

led the banks on a roller-coaster ride, and eventually settled 29p lower, or 1.7%, at 16.41 pounds.

Abbey National

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, the sector's takeover favorite, roared up 31.5p, or 3.8%, to 866.

Standard Chartered

ended the session 18p higher, or 2.1%, at 919.

Most of Europe's other stock markets finished higher, with the

Xetra Dax

in Frankfurt closing up 39.44, or 0.5%, at 7931.93 and the

CAC 40

in Paris ending 73.45 higher, or 1.1%, at 6524.30.

Although trading was extremely volatile throughout the day, technology shares were for the most part back in demand in Frankfurt.

Epcos

(EPC) - Get Report

gyrated wildly the entire session but eventually ended up 5 euros, or 3.3%, at 157 ($152.20). Software giant

SAP

(SAP) - Get Report

was in positive territory for most of the day but closed almost unchanged at 925 euros.

"The market was pretty thin today," said one trader in Frankfurt.

Telecoms around the Continent also found favor with investors, with

Deutsche Telekom

(DT) - Get Report

ending up 5.01 euros, or 5.8%, at 91.60,

France Telecom

(FTE)

closing 5.50 euros higher, or 2.8%, at 201 and

Alcatel

(ALA)

finishing up 3.10 euros, or 1.3%, at 243.10.

After gaining Monday upon announcing plans to acquire over a third of Japanese carmaker Mitsubishi,

DaimlerChrysler

(DCX)

was hit by a round of profit-taking and ended down 2.52 euros, or 3.6%, at 68.04.