Donald Trump was able to reverse the first slump in digital assets since he took office with some new promises about a U.S. strategic reserve of cryptocurrencies.

The president said Sunday in a social media post on Truth Social that such a reserve would include bitcoin (BTC), ether (ETH), XRP (XRP), solana (SOL) and ada (ADA). He had not previously not spelled out which digital assets would be included.

The new disclosure sent the value of these digital assets soaring, reversing a slump that had taken hold in recent weeks and accelerated last week as bitcoin experienced its worst correction since a 2022 meltdown.

Bitcoin's price, which had dipped as low as roughly $78,000 last Friday, rose above $94,000 on Sunday. The world’s largest cryptocurrency is currently up 8% since Trump’s post, although still below its all time high above $109,000 the day of Trump's inauguration in January.

The world’s second largest cryptocurrency, ether (ETH) is up 7% since Trump’s post. Solana (SOL) is up 16%. XRP (XRP) has climbed more than 20%. Cardano’s ADA coin (ADA) has soared over 50%.

The inclusion of Solana, XRP and ADA would be a major boost for those digital currencies, which don’t carry as much support on Wall Street as bitcoin or ether.

“A U.S. Crypto Reserve will elevate this critical industry after years of corrupt attacks by the Biden Administration,” Trump said in his post.

The president is also participating in the cryptocurrency industry. Just before his inauguration, Trump’s team launched an official meme coin for the 47th president (TRUMP) along with one for first lady Melania Trump (MELANIA) on the Solana blockchain. Those memecoins are up 14% and 2% since Trump's Truth Social post.

The president’s namesake Trump Media & Technology Group (DJT) also has announced plans to launch a bitcoin exchange-traded fund under its new Truth.Fi brand.

The strategic reserve idea is one of Trump’s biggest promises to the crypto world, something he touted while on the campaign trail last year while pledging to make the US the "crypto capital of the planet."

But it is not yet clear how it would work exactly, or whether it would require an act of Congress.

The president signed a crypto-focused executive order in January that called for a newly formed presidential working group on digital assets to “evaluate the potential creation and maintenance of a national digital asset stockpile.”

It also said the group would propose "criteria for establishing such a stockpile, potentially derived from cryptocurrencies lawfully seized by the Federal Government through its law enforcement efforts."