BUZZ-Valeant: Doomsday options bets jump in value as shares slide
** Cost of Valeant Pharmaceuticals International Inc's put options jump; some recent doomsday options bets gain in value as shares continue their weeks long slide
** Valeant shares fell as much as 20 percent on Thursday to near 2-1/2 year low of $73.37; shares last down 12 pct to $79.90
** Weekly puts expiring Friday at strikes ranging from $50 - considered disaster pricing for the company - to $90 traded in large volume over last two weeks; cost of some of these puts double and triple on Thursday
** About 7,200 Jan $55 calls traded for an average price of $3.38 on Oct 21; on Thursday, these trade as high as $6.20
** On Thursday, options volume rose to 171,000 contracts or 2.4x what is normal, according to Trade Alert data
** Total open interest in Valeant puts at 359,600 contracts, an all-time high
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