Micron shares are off 20c to $6.40 amid continued weakness in the chip/semi sector (link to analyst downgrade of chip stocks). Notable trade was a sweep of 5,010 of December $6 puts at the 40c ask. Prior open interest in the strike was 1,748 so this appears to be an opening purchase. IV has moved up from 68% from 66% yesterday and up from around 63% one week ago.