Saudi Arabia sold almost all of its stock in Tesla at the end of last year, missing out on the car company's astonishing share price rally.

Tesla gained another 19pc on Tuesday, meaning shares have more than doubled since the start of January.

An SEC filing showed the Saudi Public Investment Fund, previously one of the company's five biggest owners, selling almost all of its 8.2m shares in Tesla during the final quarter of 2019. Unless it bought back in, the sovereign wealth fund will have missed out on huge gains.

Elon Musk's personal fortune has grown by $13.5bn (£10.36bn) during the share price rally, while the company's short sellers have lost $12bn so far this year.

The Tesla chief executive, who has much of his wealth tied up in the company, now has a personal fortune of $41bn, according to Bloomberg.

In December, giving evidence in a defamation case brought by British caver Vernon Unsworth, he estimated his personal wealth at $20bn.

He has railed against the company's short sellers - stock market speculators who bet that a share price will fall. In December he called for short selling to be made illegal and in 2018 lashed out at US regulator the SEC, dubbing it the "short-seller enrichment commission".