Bitcoin jumps $1k in 1 minute

Around 12:15am EST Bitcoin moved from 29.9k to 30.8k

So what just happened? Apparently around 3000 BTC was moved from huobi to a personal wallet.

But i don't think that really would move the price that much. Any theories on what the whales are doing tonight? Looks like one may of just bought a ton of Bitcoin within the last 30 minutes. It's also interesting that they bought during the time most Americans are asleep. I also wonder if a ton of shorted Bitcoin was ended and people were forced to buy up some Bitcoin.