PLX Technology: After-Hours Trading

Other stocks active after the bell included Kona Grill(KONA) , which gained more than 14% to $7.70 on volume of 30,000 after the company blew past Wall Street's profit expectations with its first-quarter results as same-store sales jumped 8.7%; QuinStreet(QNST) , whose shares were off 14% to $9.03 on volume of close to 20,000 after the online marketing and media company reported revenue of $93 million for its fiscal third quarter ended in March, below the average analysts' view of $102.5 million.

--Written by Michael Baron in New York.

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