Research in Motion

(RIMM)

was the volume leader in after-hours Instinet trading, and the stock was losing ground after the maker of wireless communication devices lowered its guidance for the first quarter and 2003.

The stock was dropping 5.8% to $21.90. The outlook came after the company reported a fourth-quarter loss that widened from the same period a year ago but came in narrower than analysts were expecting.

Trading activity was again on the light side, as only around 2.2 million shares changed hands among the top 20 volume movers on the Instinet platform in the first 90 minutes of action after the close.

Idec Pharmaceuticals

(IDPH)

was falling 2.7% to $56.40, even though the company said first-quarter earnings should come in a penny ahead of Wall Street's consensus forecast.

American Eagle

(AEOS)

was one of the biggest percentage losers, losing 6.7% to $23.29 after the company

projected an earnings shortfall.

Clothing designer

Nautica

(NAUT)

was dropping 7.8% to $14.68 after the company cut its fourth-quarter guidance.

Pegasystems

(PEGA) - Get Report

was one of the big winners, gaining 9.8% to $8.95. After the close, Pegasystems said the

Securities and Exchange Commission

would drop its investigation of the company without recommending any enforcement action.

Elsewhere among the most actives,

Cisco

(CSCO) - Get Report

was up 0.3%, and

Intel

(INTC) - Get Report

was flat.

Dell

(DELL) - Get Report

was gaining 0.2%,

Microsoft

(MSFT) - Get Report

was ahead by 0.1%, and

JDS Uniphase

(JDSU)

was adding 1.3%.