That's the market in action, dude.  Buying and selling, and it looks like there are more sellers than buyers at this particular moment--this is bitcoin, which is notorious for its volatility.  It's gained and lost at least this much percentage-wise since I've been into it, which has been a few years now.  This isn't exactly bubble behavior, just volatility. 

The bullish way the market is right now, I'd probably say that this is a dip you'd want to buy, and I don't often say "buy the dip".  I think this is just a pullback, which also isn't surprising given how fast bitcoin rose in the past couple of weeks.