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.
Well, I think this is just another normal day in bitcoin. A single big transaction can affect the whole market but soon it can be forgotten and bitcoin can rise again. I am not personally alarmed with this development because I had seen bitcoin crashed before again and again yet it has this resiliency we know of though sometimes if there will be a winter it can take time for it to recover. We are still in the bull run right now and more players are getting in so am sure many of them are happy to see bitcoin bit a dip so they can buy at a cheaper rate...