. >>> why did some savvy traders bet against microsoft? we'll explain when we come back.n the world moves, futures move first. learn futures from experienced pros with dedicated chats and daily live webinars. and trade with paper money to test-drive the market. all on thinkorswim from td ameritrade. [b♪ll rings] time and sales data. split-second stats. ♪ its so close to the options floor, you'll bust your brain-box. all on thinkorswim, from td ameritrade. >>> with the incredible runs of intel and microsoft, you may think we're in a 1999 time warp. but despite this move, some traders think the run might be over. mike? >> well, today, one thing that was interesting, the stock was up in sympathy with intel. but microsoft, the options ran high. and there was a trade in the morning, what looked like a buyer of 12,000 of the august calls. a bullish trade. but they got sold all day, 23,000 of them. and closed up about 14%. so, a lot of activity, it's hard to tell. but if you think about it, it could just be one holder and the stock may not go a lot higher. this massive breakout