Thursday's Early Winners & Losers

Staar Surgical (STAA Quote) jumped 5% in after-hours trading as the ophthalmic-products maker announced preliminary fourth-quarter results that should top Wall Street estimates. The Monrovia, Calif., company said revenue will likely grow 26% to about $15.2 million year over year. Analysts polled by Thomson Financial are looking for $14.3 million for the quarter. Shares were adding 34 cents to $7.05.

Volcano (VOLC Quote), which makes equipment for the treatment of vascular and structural heart disease, also gained on word of a better-than-expected revenue outlook. The company predicts a 20% jump in fourth-quarter sales to about $29 million, as well as a 12% full-year climb to $103 million. Wall Street is seeking $26.6 million and $100.1 million, respectively. The Rancho Cordova, Calif., company was rising 58 cents, or 3.2%, to $18.60.

Sapient (SAPE Quote) rose on third-quarter results -- called preliminary due to a stock-option grant review -- that topped estimates. The business-software company posted non-GAAP income from operations of $7.1 million, down from last year's $7.4 million, with per-share earnings adding a penny to 7 cents. Analysts had sought 4 cents a share.

The Massachusetts-based firm said that revenue swelled to $111.5 million from $84.3 million a year ago, beating the consensus by about $9.3 million. The company also forecast that fourth-quarter operating margins will rise sequentially. Shares were bouncing 19 cents, or 3.2%, to $6.15.