BITSTAMP:BTCUSD   Bitcoin / U.S. Dollar
I used the arrows to highlight the areas in which we have seen the crossover between the MA-50 and EMA-15, coupled with high volume , rising RVI, and overbought RSI .

I don't believe anyone should actively attempt to short here if holding bitcoin             is your objective, however I do believe we will see a final buying opportunity very soon here before the ultimate run up for the rest of the year.