Data Domain (DDUP) is seeing a second day of bearish flow. Yesterday, with shares around $13, our scans picked up increasing activity in April 12.5 puts. Shares are down $1.60 to $11.40 today and 5,700 puts traded, compared to 640 calls. Activity is scattered across Mar, Apr, and Jun puts at the $10 and $12.5 strikes. Implied vols up to 89, from about 73 the day before.