Builders FirstSource Inc. (Nasdaq:BLDR), China Medical Technologies Inc. (Nasdaq:CMED) and Books-A-Million Inc. (Nasdaq:BAMM) are among the biggest percentage losers in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Sequenom Inc. (Nasdaq:SQNM), CPI Corp. (Nasdaq:CPY), Benihana National Corp. (Nasdaq:BNHNA), Female Health Co. (Nasdaq:FHCO), Facet Biotech Corp. (Nasdaq:FACT) and SIGA Technologies Inc. (Nasdaq:SIGA).

Tree.com Inc. (Nasdaq:TREE), Renesola(Nasdaq:SOL) and Benihana National Corp. (Nasdaq:BNHNA) are among the biggest percentage losers in Thursday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Gainsco Inc. (Nasdaq:GAN), Starlims Technologies Ltd. (Nasdaq:LIMS), Transcept Pharmaceuticals Inc. (Nasdaq:TSPT), Fuqi International Inc. (Nasdaq:FUQI), Genesee & Wyoming Inc. (Nasdaq:GWR) and ATP Oil & Gas Corporation (Nasdaq:ATPG).

Small-cap stocks extended the morning decline into midday trading, with retailer stocks leading the way down. Additional pressure came from sinking energy stocks, a weak tone in some commodity names, tumbling automakers and modest declines in financial shares as well. Some of today’s small-cap gainers are MAP Pharmaceuticals (Nasdaq:MAPP), Palm (Nasdaq:PALM) and Colony Bankcorp (Nasdaq:CBAN).

Other Market Watch highlights today included:

• Restaurants were a hot item on Friday, but were a little cool this morning, perhaps tied to profit-taking and also from the ongoing worries about the economy.  
• Credit Suisse analysts lowered its rating on GM to “underperform” and cut their price target to $1.  
• Automakers were finding out that the glow from Friday’s $13.4 billion dollar White House bailout had a short shelf-life among investors. 
• Crude oil was off more than 3%, slipping back below $41 a barrel as Chinese imports tumbled to the lowest level of the year in November. 

Small Cap Gainers:

• MAP Pharmaceuticals up 30% after announcing a worldwide collaboration with AstraZeneca to develop and commercialize a new drug. See (Nasdaq:MAPP).
• Palm gets $100 million investement, shares rally 20%. See (Nasdaq:PALM).  
• Colony Bankcorp up 28% after declaring a fourth quarter dividend on Friday. See (Nasdaq:CBAN).  
• Benihana awarded Xanadu liquor permit by state; shares pop 12%. See (Nasdaq:BNHNA).  

Small Gainers:

• Maguire Properties down 22% after suspending dividend on Friday. See (NYSE:MPG).
• Among small-cap movers, eatery chain Lubys Inc. is down 17%. See (NYSE:LUB).
• Browne & Co. Inc. is down 15% as the marketing communications firm gave back a huge chunk of Friday’s rally. See (NYSE:BNE).  
• Oxford Industries Inc. is down 14% as the apparel maker turned south along with other apparel and retail names after a strong performance last week. See (NYSE:OXM).  

AZZ Inc. (NYSE:AZZ), The Andersons, Inc. (Nasdaq:ANDE) and The Finish Line, Inc. (Nasdaq:FINL) are among the biggest percentage gainers in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Carmike Cinemas, Inc. (Nasdaq:CKEC), QC Holdings, Inc. (Nasdaq:QCCO), Lifetime Brands, Inc. (Nasdaq:LCUT), Tri-Valley Corp. (AMEX:TIV), Royal Bancshares of Pennsylvania, Inc. (Nasdaq:RBPAA) and Benihana, Inc. (Nasdaq:BNHNA).

Here are the biggest percentage gainers among small caps:

MTS Medication Technologies Inc (Nasdaq:MPP), Republic Airways Holdings Inc (Nasdaq:RJET) and Provident Bankshares Corp (Nasdaq:PBKS) are among the new 52-week lows in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Apex Silver Mines Ltd (Nasdaq:SIL), Benihana Inc (Nasdaq:BNHNA), Old Second Bancorp Inc (Nasdaq:OSBC), First M&F Corp (Nasdaq:FMFC), Cathay General Bancorp (Nasdaq:CATY) and Sandy Springs Bancorp Inc (Nasdaq:SASR).

Here are the new 52-week lows among small caps:

Columbia Bancorp (Nasdaq:CBBO), Optium Corp (Nasdaq:OPTM) and Benihana Inc(Nasdaq:BNHNA) are among the biggest percentage losers in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Adept Technology Inc (Nasdaq:ADEP), Fuel Tech Inc (Nasdaq:FTEK), Cardica Inc (Nasdaq:CRDC), Pamrapo Bancorp (Nasdaq:PBCI), Virtual Radiologic Corp (Nasdaq:VRAD) and Cathay General Bancorp (Nasdaq:CATY).

Here are the biggest percentage losers among small caps:

Rimage Corp (Nasdaq:RIMG), AEP Industries Inc (Nasdaq:AEPI) and Heritage Commerce Corp (Nasdaq:HTBK) are among the new 52-week lows in Monday's trading among companies with market capitalizations under $1 billion.

TASER International Inc (Nasdaq:TASR), Benihana Inc (Nasdaq:BNHNA) and Community Bancorp (Nevada) (Nasdaq:CBON) are also among the new 52-week lows

City Bank (Nasdaq:CTBK), Jazz Pharmaceuticals Inc (Nasdaq:JAZZ) and Banner Corp (Nasdaq:BANR) were additionally included among the results.

Here are the new 52-week lows among small caps: