This thread give a main reason about the bitcoin bullish right now
https://bitcointalk.org/index.php?topic=2341906.new#newAnd another reason about the bitcoin hardfork which bring you a lot of free money. You can see in the coinmarketcap about these exchange sites that already listed btg as IOU token.
That just like a dividend for everyone that hold their bitcoin right now.
Both were the main reasons makes the bitcoin was really bullish.