new York 07 31, 2012, 01:00 IST
With Shaw Group Inc
According to several options market participants, one investor purchased 2,000 Aug $29 calls in Shaw Group for 25 cents a piece on Thursday. With Shaw shares hitting all-time high near $44 on Monday, the calls were worth about $14, a stunning 5,600 percent return for the investor.
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"The timing of this does look rather suspicious and the fact someone bought some out-of-the-money calls at the Aug 29-strike, which is 12 percent out-of-the-money, only adds to the suspicion," said Ryan Detrick, senior analyst at Schaeffer's Investment Research in Cincinnati, Ohio.
Chicago Bridge & Iron Co
Shaw Group stock jumped about 60 percent to $43.70, while CB&I fell 14.9 percent to $34.67.
"Insider trading? Maybe. Certainly very shrewd timing on the purchase, wouldn't you say?" said Jon Najarian, co-founder of OptionMonster.com.
Suspicious trades prior to merger announcements are not uncommon in the options market. Just last week, a number of large well-timed bullish bets in the options of Canadian oil producer Nexen Inc
The U.S. Securities and Exchange Commission has now accused a Hong Kong-based firm of insider trading ahead of the public disclosure that China's oil producer CNOOC <0883.HK> plans to acquire Nexen.