Elon Musk's autos and energy business said it will replace all affected units for Powerwall 2 customers in the U.S.

The move would break with Elon Musk's longstanding insistence that its native software is superior to a third-party system.

Tesla Inc.’s stock is now in negative territory on the year, as it heads for its worst daily drop since July. The stock was down by about 7% on Thursday, making it the third-worst performer in the S&P 500 and the bottom performer in the Nasdaq-100 index for the day,

Coinbase is relocating its incorporation from Delaware to Texas, joining Tesla and SpaceX in rejecting Delaware’s legal system. The move follows court rulings voiding Elon Musk’s pay package and rising corporate frustration over unpredictable Chancery Court decisions.