Thursday's Late Winners & Losers

After-hours action was mixed Thursday as investors sifted through another large pile of earnings reports.

Among the top postbell gainers was Crocs (CROX Quote), which surged nearly 14% to $65.32 after first-quarter per-share income and revenue each more than tripled from last year, squashing Wall Street estimates. The Niwot, Colo., plastic-shoe maker also announced a two-for-one stock split.

Seattle coffee giant Starbucks (SBUX Quote) said fiscal second-quarter income gained 3 cents per share on last year to 19 cents, which squares with analysts' expectations, per Thomson Financial. Shares lately rose 0.9% to $31.90 in heavy trading.

Among tech names on the rise after the bell was Clifton Park, N.Y.-based On2 Technologies (ONT Quote), which makes video compression/decompression software. First-quarter revenue more than doubled year over year to $2.8 million, ahead of two analysts' estimates. Shares jumped 16.1% to $2.45.

Arizona's First Solar (FSLR Quote), a solar-energy semiconductor, jumped 7.3% to $62.15 after swinging to a 7-cent per-share profit from last year and nearly quintupling its revenue to $66.9 million. Sigmatel (SGTL Quote), another semiconductor, posted a sharply narrowed loss of 41 cents a share (excluding items), handily beating Wall Street's 48-cent forecast. The Austin, Texas-based company added 4.2% to $4.

Meanwhile, NovaStar Financial (NFI Quote) shares lifted by 7.3% to $6.89 after the struggling subprime lender secured a $1.9 billion financing facility from Wachovia.

On the flip side, after-hours losers included the actively traded Jones Soda (JSDA Quote). The Seattle-based maker of natural soda plunged 16.3% to $21.10 after posting a small break-even profit in the first quarter, which missed the average 3-cent per-share target. Revenue, at $9.2 million, also fell far short of the $13.2 million consensus.