Bullish Shuffle Master Inc. option trading surged to a three-year high as investors boosted bets that the company identified by Credit Suisse Group AG in April as a leveraged buyout candidate will keep rallying next month.
Almost 10,500 calls to buy the stock changed hands, 163 times the four-week average and 190 times the number of puts to sell, as of 2:55 p.m. in New York.