Small-cap stocks took a tumble along with the major indices Monday. The Russell 2000 fell 0.8% to 719.81, and the S&P SmallCap 600 decline about 1% to 380.68.

UAL

( UAUA), parent company of United Airlines, fell on news the airline plans to lay off 950 pilots. The stock sank $1.07 or 15% to $6.09. The fall came as part of a sector slide in airlines as oil prices rose Monday.

US Airways

(LCC)

sank 19.4% to $2.54;

Northwest Airlines

( NWA) fell 17.3% to $5.51; and

Continental

(CAL) - Get Report

declined 16% to $11.96.

Cable provider

RCN

(RCNI)

surged Monday following a

positive mention in Barron's

over the weekend that described the stock as undervalued. Shares climbed 12.6% to $11.80.

Gastar Exploration

(GST)

traded up 16.6% to $2.60 after the company announced drilling results of its East Texas properties. The natural gas and oil exploration company drilled LOR 6 for $8.4 million, below the expected cost average of $12 million.

Other big gainers Monday included

Uranium Resources

(URRE)

, which climbed 28% to $3.30, and

Hydrogenics

(HYGS) - Get Report

, which surged 14.6% to $1.21. Among the losers was

Radian Group

(RDN) - Get Report

, which fell 15% to $2.01.

This article was written by a staff member of TheStreet.com.