Dyax Corp. shares jumped in the extended session Monday after unsubstantiated market rumors spread that the biotech is a takeover target. Dyax shares popped 53% to $36 in after-hours activity. On a video making the rounds Monday, Betaville blogger Ben Harington told Tip TV's Nick Batsford there are "very speculative" rumors in London markets that the company is a takeover target.
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