Medical device maker Intuitive Surgical (ISRG) is slated to unveil its first quarter results next Thursday, April 15. Analysts surveyed by Thomson Reuters are expecting a profit of $1.68 per share, up from 72 cents per share in the year-ago period. ISRG has bested analysts' earnings expectations in each of its previous three reports.


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However, option players are loading up on puts ahead of ISRG's earnings release. The stock's ten-day International Securities Exchange (ISE)/Chicago Board Options Exchange (CBOE) put/call volume ratio of 0.89 ranks in the 79th annual percentile, pointing to elevated skepticism.

Plus, 6.2% of the equity's float is sold short. Given the stock's solid earnings history, along with its long-term uptrend along the support of its ten- and 20-week moving averages, ISRG could benefit from an unwinding of bearish bets if it manages to exceed expectations again.

By Elizabeth Harrow, contributor, Schaeffer’s Trading Floor Blog