Friday's Put/Call Ratio Leaders

Here are today's Put/Call Ratio leaders… 1. Cadence Design Systems CDNS 10,247 puts, 187 calls 2. Calevision Systems CVC 7,162 puts, 160 calls 3. Lexmark International LXK 6,344 puts, 180 calls 4. Life Technologies LIFE 4,770 puts, 226 calls 5. Thoratec Corp. THOR 2,878 puts, 139 calls