Option update: Aggressive volume-volatility for Sandisk (SNDK) & Intuitive Surgical (ISRG)

Intuitive Surgical (NASDAQ:ISRG), develops, manufactures and markets robotic technologies designed to improve patient returns. ISRG is recently up $14.95 to $251.67. ISRG is expected to report EPS of .80 cents after the close tonight according to Thomson First Call. ISRG call option volume of 12,599 contracts compares to put volume of 8,398 contracts. ISRG October 250 straddle is priced at $32.40. ISRG November option implied volatility of 73 is above its 26-week average of 49 according to Track Data, suggesting larger price risk.

Sandisk (NASDAQ:SNDK), a supplier of flash data storage card products, is recently up .53 to $49.60. SNDK will report 4Q EPS after the close tonight. Cowen says "expect blowout quarter, but near-term risks escalate on falling NAND prices." SNDK call option volume of 65,411 contracts compares to put volume of 22,533. SNDK October 50 straddle is priced at $4.35. SNDK November option implied volatility of 61 is above its 26-week average of 47 according to Track Data, suggesting larger near term price risks.

Daily options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com.