Robert Prechter warned of this. It doesn't matter if you traded right, if you can't cash in your nominal winnings:
Dear Client,We appear to have a full-blown financial war underway. I wonder how long it will take Putin to put the ruble on the gold standard. That's always been his trump card; it eliminates Russia's ability to play the money multiplication game, but in the end, will provide Russia with a sounder currency than the so-called currency of last resort.
Please be advised that that most Western Banks have stopped pricing USD/RUB. As such, FXCM can no longer offer this instrument to our clients and will begin closing any existing client trades in USD/RUB effective at Noon EST today, December 16th, 2014,
So for those curious why there appears to be a collapse in Ruble volatility in the past few hours which in turn has sent both stocks and crude soaring, the answer is simple: nobody is trading it!
And this is what happened following the post: as soon as all those short the RUB (long USDRUB) realized they have to take profits, the USDRUB tumbled some 500 pips (!) in the process sending stocks surging.