RadVision Tumbles Most in 2 Years on U.S.-Traded Shares Drop

RadVision Ltd., the maker of video-conferencing systems, tumbled the most in more than two years following a drop in the U.S.-traded shares yesterday.

The shares lost 14 percent, the biggest decline since October 2009 to 31.94 shekels, or the equivalent of $8.42 at the 4:30 p.m. close in Tel Aviv. The stock slid 12 percent to $8.51 in New York yesterday and extended its decline another 1.9 percent to $8.35 as of 9:58 a.m. local time.

RadVision gained 19 percent this week in Tel Aviv on newspaper reports that Avaya Inc. is in talks to buy the company for a premium.

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