Microsoft (MSFT) implied volatility is easing and options are heavily traded Friday. Shares are down 4.4 percent to $25.53 and easily the Dow’s biggest loser after the company posted EPS numbers that topped Street views, but profit margins were short of expectations. 359,000 calls and 212,000 puts traded in the software giant so far. The Weekly 26 calls, which saw heavy trading yesterday ahead of the news, are the most actives. Some investors are probably scrambling to salvage time value. The contract is now 1.8 percent out-of-the-money with less than an hour of life remaining. 67,000 contracts traded. May 26 puts, May 26 calls, May 25 puts and May 27 calls are seeing brisk trading as well, as investors jockey for position ahead of Microsoft’s next short-term move. May options expire in three weeks.