Research in Motion (RIMM) call volume and volatility increases with share price

Go back to Research in Motion (RIMM) call volume and volatility increases with share price
Research In Motion Ltd (NASDAQ: RIMM) Delayed: 14.64 +1.61 (12.36%)
Previous Close $13.03    52 Week High $18.32 
Open $13.71    52 Week Low $6.22 
Day High $14.67    P/E N/A 
Day Low $13.52    EPS $0.00 
Volume 50,729,550