Tesla purchased $1.5 billion in bitcoin. Its chief executive Elon Musk had promoted bitcoin and dogecoin on Twitter. Tesla also announced that it expects to start accepting bitcoin as payment for its products soon. Soon after the announcement bitcoin price jumped more than 10%. Tesla revealed the bitcoin purchase in its latest annual report filed on Monday, saying the move aims to provide “flexibility to further diversify and maximize returns on our cash that is not required to maintain adequate operating liquidity.”