Monday's Late Winners & Losers

Illumina (ILMN Quote - Cramer on ILMN - Stock Picks) was among the big winners in generally mixed after-hours trading Monday.

Shares of the San Diego-based biotech company jumped 7.2% after fourth-quarter non-GAAP income came to $22.5 million, or 38 cents a share, to shoot past the 25-cent average EPS estimate from Thomson Financial. That compares with higher year-ago income of 42 cents a share, but revenue also rocketed 86.3% to $112.6 million, comfortably beating the $105.3 million consensus. Shares were bouncing $4.66 to $69.55.

Las Vegas Sands (LVS Quote - Cramer on LVS - Stock Picks) shares were also in the green recently even though the hotel-and-casino operator said earnings plummeted by more than two-thirds to 11 cents a share in the fourth quarter. Adjusted earnings came to 20 cents a share vs. 37 cents a year earlier, which sharply misses analysts' 35-cent projections. But shares were lately up 2.4% to $83.40 in relatively light trading.

On the other hand, SiRF Technology (SIRF Quote - Cramer on SIRF - Stock Picks), which makes chips and software for global positioning system (GPS) products, was diving 38.6% on its own lower-than-expected earnings. For the fourth quarter, the San Jose, Calif., company reported flat non-GAAP income of 28 cents a share. Analysts were looking for 4 cents more. Shares were plummeting $9.99 to $6.28

And memory-chip maker Rambus (RMBS Quote - Cramer on RMBS - Stock Picks), of Los Altos, Calif., fell 4.1% to $19.30 after it swung to a loss of $14.6 million, or 14 cents a share, in the fourth quarter. Sales plunged 22.9% to $40.5 million vs. last year, though that edges past the sole analyst estimate for a $40 million top line.

Elsewhere, Synchronoss Technologies (SNCR Quote - Cramer on SNCR - Stock Picks), a purveyor of order-management and transaction-processing software, saw choppy trading even after non-GAAP income shot up 71.4% year over year to $7.2 million, or 22 cents a share. That tops Street expectations by 2 cents a share. Still, shares of the Bridgewater, N.J., company were falling 4.5% to $22.39 following an initial after-hours climb.

Finally, veterinary-services company VCA Antech (WOOF Quote - Cramer on WOOF - Stock Picks) gave up 16.5% to $33 after predicting fourth quarter earnings of between 28 cents to 29 cents a share, including a special 3-cent gain on pared-down workers compensation liability for periods prior to 2007. Analysts, who typically exclude one-time items, are looking for 28 cents a share. For 2008, the Los Angeles-based company expects an in-line revenue range of between $1.3 billion and $1.33 billion.