Interest in Maxim Integrated (MXIM) continues. Total options volume is running at five times the average daily levels, with most of the action in March and May 12.5 and 15 puts. Shares are up 34 cents to $13.71. Today’s put buying marks the fourth consecutive day of heavy trading, which has pushed up open interest in MXIM puts from less than 8K contracts on Jan 23 to almost 80K contracts before the start of trading today.