NEW YORK (

TheStreet

) --

Kayak

(KYAK)

was a big gainer in premarket trading on Friday after

Priceline.com

(PCLN)

made a

surprise $1.8 billion swoop

for the travel Web site.

The two companies announced the deal, which values Kayak at $40 a share in cash and stock, late on Thursday.

Shares of Kayak surged 25.64% to $39 before market open. Priceline was off 1.89% at $616.

"Kayak has built a strong brand in online travel research and their track record of profitable growth is demonstrative of their popularity with consumers and value to advertisers," said Priceline CEO Jeffery Boyd, in a statement released after market close. "We believe we can be helpful with Kayak's plans to build a global online travel brand."

Norwalk, Conn.-based Kayak also reported its fiscal third-quarter results on Thursday, posting revenue of $78.6 million, above analysts' forecast of $77.36 million. Excluding items, Kayak earned 26 cents a share. Analysts surveyed by

Thomson Reuters

were looking for earnings of 19 cents a share.

Groupon

(GRPN) - Get Groupon, Inc. Report

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was a big loser in premarket trading on Friday, plunging 17.09% to $3.25 after

badly missing

third-quarter estimates.

The daily deals site reported break-even earnings and sales of $568.8 million. Analysts surveyed by

Thomson Reuters

were looking for earnings of 3 cents a share and revenue of $590.12 million.

Apple

(AAPL) - Get Apple Inc. (AAPL) Report

shares, which lost 3.63% on Thursday, were off 0.35% to $535.86 in premarket trading on Friday.

Qualcomm

(QCOM) - Get QUALCOMM Incorporated Report

, which reported better-than-expected

earnings

on Wednesday, gained 0.1% to reach $60.73.

--Written by James Rogers in New York.

Follow @jamesjrogers

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