Silicon Graphics (SGI) is recently up 29% following better than expected Q4 revenue and strong fiscal year guidance. September and December call option implied volatility of 75 is above its 26-week average of 64.
Salesforce.com (CRM) is recently trading near its eight-month low after revising its full year revenue guidance. September 100 puts are active on option implied volatility of 69; above its 26-week average of 45.
Market Vector Gold Miners (GDX) September 63 and 65 calls are active on total CBOE option volume 147K contracts. September call option implied volatility is at 34; December is at 36; above its 26-week average of 32 as gold moves up 1.82% to $1855.