I can sympathize. I sold my holdings on Wednesday afternoon, for a small profit, only to see the announcement Thursday morning. I bought and sold again on Thursday for tiny profit (was away from computer and didn't want to risk it, if it was a one day wonder), but now think MNF should be re-rated on a game changing acquisition.
With only 62m shares on issue, it doesn't take much to move the price - in either direction.
MNF Price at posting:
$3.64 Sentiment: Hold Disclosure: Held