Mattel (MAT, news, chart) is seeing active call buying Monday for some unexplained reason. Total volume is running 8 times the usual, with 13,000 calls and 1,186 puts trading on the day. Most of the action is in the January calls. 7,530 of the 17.5s traded, with 79 percent trading askside. Another 4,000 of the 20s traded, with 91 percent trading askside. The stock is languishing, down 47 cents to $17.25 and there is no news out today. At the same time, Hasbro (HAS) option volume is running triple the usual. However, HAS options are active on premium selling in the October calls and August puts.