Small-cap stocks traded mostly under the shifty broad market Monday as names like

Finish Line

(FINL)

pulled things down significantly.

Indianapolis-based Finish Line will buy out fellow footwear retailer

Genesco

(GCO) - Get Report

for an essentially

huge premium

of $54.50 a share. The all-cash transaction is valued at $1.5 billion.

Finish Line shares lost 8.7% at $11.53, while Genesco joined today's small-cap winners with a gain of 8.4%, or $4.15, to $53.75.

Encysive Pharmaceuticals

( ENCY) shares plummeted more than 43% on word of a

third approvable letter

from the Food and Drug Administration regarding Thelin, its proposed treatment for pulmonary arterial hypertension, due to a stated lack of evidence for the compound's effectiveness. That spelled out for Encysive a

decisive loss

against one of its rivals, and may lead to "significant reductions in its infrastructure and workforce in the U.S.," said the company.

Shares of Encysive, which is a component of the Russell 2000, closed at $2.32. The index gave back 0.2% to 846.28 as another member,

Trump Entertainment Resorts

( TRMP), dropped on word Chief Executive James Perry will resign effective July 1. He will be replaced, in the interim, by chief operating officer Mark Juliano. Shares traded down 8.2% to $14.61.

New York-based electric utility

U.S. Energy Systems

( USEY) was also deeply in negative territory after announcing that auditors issued a going-concern warning in its year-end results, which were filed earlier this month, citing "a working capital deficiency and ... continuing operating losses." Shares lost 25.2% to $3.11.

The S&P SmallCap 600, meanwhile, slid 0.2% to 439.35 even as one of its components,

ScanSource

(SCSC) - Get Report

, jumped 10.5% to $31.60.

The Greenville, S.C., technology-products distributor became a current filer by logging in three quarters' worth of results, which had been previously delayed due to a stock-option-grant review. Non-GAAP earnings for the March quarter, at 46 cents a share, were a penny higher than last year and topped estimates by 7 cents, according to Thomson Financial. Further, a restatement (as a result of the investigation) lowered per-share income by 3 cents for 2004 but did not affect that of 2005 or 2006.

Elsewhere,

American Technical Ceramics

(AMK) - Get Report

, a Huntington Station, N.Y., maker of ceramic capacitors and other products, rocketed 42.7% to $23.99 after

AVX

(AVX) - Get Report

agreed to buy it for $24.75 a share in cash, or around $231 million. AVX shares dipped slightly at $18.01.