BlackRock (BLK) call put ratio 1.9 calls to 1 put into quarter results
BlackRock (NYSE: BLK) October call option implied volatility is at 72, November is at 35; compared to its 52-week range of 33 to 42. Call put ratio 1.9 calls to 1 put into the expected release of quarter results before the bell on October 14.

