The Tesla chief`s tweets about certain companies and cryptocurrencies have sent their prices soaring in recent weeks. Shares in GameStop, Etsy and CD Projekt have jumped following comments on his Twitter account about them.

In the crypto world, him putting a “#bitcoin” tag on his Twitter bio sent the most popular currency flying last Friday. He has since taken the tag off.

Meanwhile, rival cryptocurrency ethereum is also on a record setting spree as investors buy it before the launch of ethereum futures on the Chicago Mercantile Exchange next week.

Ethereum rose to record high of $1,698.56 before giving up some of those gains to trade 2.7% lower in early london trading. Bitcoin, the most popular crypto currency, also fell 1.2% to $37,184.

Cryptocurrencies are gaining traction with more mainstream investors. The euphoria boosted the total market value of all cryptocurrencies above $1 trillion for the first time earlier in January.