I'm sure that some did although we may not know who all did until later, if at all. This paragraph tells all really. Similarly, a forex options trader at a large brokerage who trades on the CME floor in Chicago said his firm stopped trading options in the Swiss franc a few weeks ago because overall volumes were increasing, leading the firm to think something was imminent. CME volume in Swiss franc futures in December was 1.15 million contracts, up 38 percent from November and 64 percent greater than December 2013. http://www.reuters.com/article/2015/01/15/swiss-snb-shorts-idUSL1N0UU1W620150115 I wish that I would have been on the trade, that is for sure.