Small-cap stocks delivered a lackluster showing Friday, moving mostly in concert with the rest of the slightly higher market as several names weighed things down with various disappointing news.

Pacer International

(PACR)

was off 12.7% to $24.14 on a 41.7% decline in first-quarter income from last year. The freight company posted earnings of 21 cents a share, which was also short of the 30-cent per-share consensus estimate from Thomson Financial. South Korean chipmaker

Pixelplus

( PXPL) tumbled 20.7% to 88 cents on widening losses and sinking revenue.

Among other small stocks pressured by disappointing first-quarter results,

Marlin Business Services

(MRLN) - Get Report

fell 12.4% to $20.98 on a 2-cent-per-share profit miss.

eDiets.com

( DIET) slid 10.9% to $3.35 after sales fell short, and

Neurocrine Biosciences

(NBIX) - Get Report

dropped 9.9% to $11.80 on a wider-than-expected loss.

Insmed

(INSM) - Get Report

, a Richmond, Va., biotech, sold some 20 million shares at a discounted price of 90 cents apiece, as well as five-year warrants for another 2 million at a $1.10-per-share exercise price. Shares fled down 12.9% at 88 cents.

In analyst calls, Matrix Research cut Internet-marketing firm

24/7 Real Media

( TFSM) to buy from strong buy on valuation, and Longbow lowered natural-soda maker

Jones Soda

(JSDA)

to neutral from buy on the heels of last night's disappointing earnings report. New York-based 24/7 lost 9.5% to $11.19; Seattle's Jones Soda was down 11.6% to $22.29.

On the upside, however,

Mobility Electronics

( MOBE) soared more than 24% to $3.48 after narrowing its first-quarter loss to 2 cents a share (excluding items). Analysts were looking for a nickel-a-share loss. Separately, the Scottsdale, Ariz., company announced that CEO Charles Mollo will retire on June 8, to be replaced by Michael Heil.

Zoltek

(ZOLT)

, which makes carbon fibers for various uses, surged 18.3% after narrowing its first-quarter loss to a small break-even figure from last year's hefty $1.31-per-share loss. Sales soared 40.2% to $36.7 million, topping the $34.8 million consensus estimate. Shares of the St. Louis-based company added $5.52 to $35.73.

Meanwhile,

Westwood One

( WON) got an 8% boost to $7.43 after the

New York Post

reported the New York-based radio programmer is preparing to put itself up for sale next month.

More broadly, the Russell 2000 recently edged up to 830.06, and the

S&P

SmallCap gained 0.2% to 430.58.