The Elon Musk-led mobility giant reported paper losses of $307 million on its cryptocurrency holdings, reversing two consecutive quarters of paper profits. Moreover, Bitcoin closed the fourth quarter down 23.7%, consistent with the decline in the value of Tesla's digital assets. Tesla previously accepted Bitcoin as a payment option for vehicles before ending the practice due to concerns about the energy consumption used in Bitcoin mining. Tesla Posts Strong Q4 EarningsTesla reported better-than-expected fourth-quarter financial results, with earnings and revenue beating consensus estimates. Tesla shares rose 1.92% in after-hours trading after closing 0.13% higher at $431.46 during Wednesday’s regular trading session.