Doesn't seem to be anything atm. Thousands of bitcoins were sold in a short moment that caused the sudden drop from $7800 to $7100. Whoever sold that 5000 btc on Bitfinex in a single swoosh seemed to have wanted to take profits but crashed the market instead. Anyways, price is slowly going back to $7300 right now yet it still amazes me how a few thousand coins can actually crash a market that hard.