I guess it was the two company that is going to launch crypto exchange in Japan in the next few months. They wanted bitcoin to get through 2000$ psychological level to maintain the value of their bitcoins, an exchange must store some coins you know. And they forced it to get higher to make BTCUSD go up. It was a hell of WAR and I was watching it , my shorts all got blown away. Was able to make it back by adding shorts at the very top though, it was quite exciting and SCARY!!!