Jones Soda ( JSDA) shares rocketed 21% after the Seattle-based soft-drink maker nearly tripled its fourth-quarter profits and beat expectations. Shares were rising $2.93 to $16.88.

AeroVironment ( AVAV), which makes unmanned aircraft systems and energy technologies, said it earned $8.9 million, or 57 cents a share, in the third quarter, compared with $4.4 million, or 29 cents a share, last year. Revenue rose 30% to $46.3 million. Analysts were seeking 25 cents a share on $45.7 million in sales. Shares of the Monrovia, Calif., company were adding $2.13, or 9.9%, to $23.56.

Winston Hotels ( WXH) stock was leaping after the Raleigh, N.C.-based real estate investment trust said it received a $15-a-share buyout offer from Inland American Real Estate Trust. Shares were up $1.26, or 9%, to $15.23

Zila ( ZILA) jumped on narrowed losses and surging revenue for the quarter ended Jan. 31. Shares were climbing 17 cents, or 8.5%, to $2.17.

Air Methods ( AIRM) surpassed two analysts' estimates by a penny, earning 10 cents a share in the fourth quarter. Shares were trading up $2, or 8.8%, to $24.62.

PeopleSupport ( PSPT) was tanking more than 36% on plunging fourth-quarter profits of $4.2 million, or 18 cents a share, including income tax benefits of 11 cents. Last year the Los Angeles-based outsourcer earned 65 cents a share with a 51-cent income tax benefit. Analysts at Friedman Billings, Piper Jaffray and JMP downgraded the stock. Shares were losing $8.13 to $14.35.

NovAtel's ( NGPS) fourth-quarter income was flat with last year at 52 cents a share, or $4.6 million. This met estimates, but the maker of global positioning systems brought in only $17.1 million revenue, which is short of the $18 million consensus target. Last year, the Canada-based company earned $4.3 million, or 49 cents a share, on sales of $13.6 million. Shares were slumping $5.36, or 12.5%, to $37.64.

Aries Maritime Transport ( RAMS) sliced 13 cents off its quarterly dividend to 7 cents a share. The Greece-based shipping company was losing 76 cents, or 9%, to $7.70.

If you liked this article you might like

Lackluster Finish for U.S. Stocks

Lackluster Finish for U.S. Stocks

Stocks Continue to Waver at the Flat Line

Stocks Continue to Waver at the Flat Line

Oil Slides as Stocks Post a Mixed Showing

Oil Slides as Stocks Post a Mixed Showing

Stocks Flutter Near the Flat Line

Stocks Flutter Near the Flat Line

Wall Street Falls Amid Inflation Talk

Wall Street Falls Amid Inflation Talk