Tuesday's Small-Cap Winners & Losers

Consulier Engineering (CSLR Quote) was sharply higher and was the Nasdaq's leading percentage gainer, shattering its old 52-week high in the process. Recently, the stock was soaring $5.78, or 173%, to $9.12. Volume was heavier than normal. However, no news was evident. Shares of Consulier went as high as $14.88 earlier in the session. The previous high during the past year was $5.99.

Commonwealth Biotechnologies (CBTE Quote) was surging a day after it agreed to acquire Australia's Mimotopes. Mimotopes is focused on the market for research-grade peptides and peptide therapeutics. Shares of Commonwealth were up 52% to $3.20.

Anika Therapeutics (ANIK Quote) advanced 24.6% to $14.40 following word that it received an approvable letter from the Food and Drug Administration for its cosmetic tissue augmentation product. CTA is an injectable soft-tissue filler for facial wrinkles, scar remediation and lip augmentation. The final approval is expected by the end of the year.

Patient Safety Technologies (PST Quote) slumped after saying it didn't file its quarterly 10-Q within the five-day extension period. The company now expects to file its Sept. 30 10-Q within the next one to two weeks. Additionally, the company received notice from the American Stock Exchange that it isn't in compliance with certain continued listing standards. Shares of Patient Safety were losing 21% to $1.47.

US LEC (CLEC Quote) said Tansukh Ganatra, the company's co-founder, past CEO and a member of the board, has been named interim CEO to replace Aaron Cowell, who will step down Dec. 4. Cowell's departure was expected with an anticipated year-end closing of the US LEC and Paetec Communications merger. The merger is now expected to close in the first quarter. Shares of US LEC were down 1.9% to $8.33.