TLDR

May was a month of rotation, not collapse.

Bitcoin lost momentum after April’s rebound as spot ETF demand cooled. Ethereum also remained under pressure, while XRP, Solana and HYPE showed that institutional demand was becoming more selective.

Stablecoins moved further into mainstream finance, and regulated crypto perpetual futures took a major step forward in the U.S.

The market was messy, but the infrastructure story kept getting stronger.

Bitcoin ETF demand cooled

After a stronger April, Bitcoin entered May with cautious optimism. But the second half of the month changed the tone.

U.S. spot Bitcoin ETFs recorded their longest outflow streak since launching in January 2024, with nine consecutive trading days of withdrawals and around $2.8 billion leaving the products, according to CoinDesk.

This does not mean the institutional Bitcoin story disappeared. It means ETF demand has become more tactical. Investors are no longer buying every dip automatically. They are rotating, waiting and reacting more carefully to macro signals and market pressure.

ETF flows showed a clear rotation

The most interesting part of May was not only that Bitcoin and Ether products saw outflows. It was where some of that attention went instead.

From May 20 to May 29, U.S. spot XRP ETFs added about $35 million, while Bitcoin and Ether ETFs lost roughly $2 billion combined, according to CoinDesk.

Solana products also stayed resilient. Yahoo Finance reported that Solana spot ETFs recorded consistent inflows throughout May, with more than $115 million in monthly inflows and zero outflow days during the month. Read more.

This is the key takeaway: institutional crypto demand is becoming more selective.

The market is no longer only about Bitcoin versus everything else. Investors are separating assets by narrative, regulation, liquidity and product access.

HYPE became one of May’s strongest altcoin stories

Hyperliquid’s HYPE was one of the clearest winners of the month.

The token hit new highs in May, supported by growing interest in Hyperliquid’s perpetual futures ecosystem and stronger demand for onchain trading infrastructure. Forbes noted that HYPE traded above $62 in May, while Coinbase data showed a new record high near the end of the month. Read more.

This matters because HYPE was not just a random altcoin move. It was connected to a bigger market theme: traders are still looking for efficient, always on markets, especially when volatility returns.

Regulated perpetual futures moved forward in the U.S.

Perpetual futures were another major May story.

Coinbase and Kalshi announced regulated crypto perpetual futures for U.S. investors, bringing one of crypto’s biggest trading products closer to domestic, regulated markets. Reuters reported that the products received CFTC approval, marking an important step for a market that has historically been dominated by offshore platforms. Read more.

The CFTC also published a statement on what American crypto asset perpetuals could mean for the future of the industry. Read more.

For crypto, this is important because perpetual futures are not a niche product. They are one of the biggest parts of global crypto trading. Bringing more of that activity into regulated U.S. venues could change how institutions, exchanges and retail traders access the market.

Stablecoins moved deeper into mainstream finance

Stablecoins remained one of the strongest real world crypto use cases in May.

SoFi made its bank issued stablecoin, SoFiUSD, available to nearly 15 million members through its app. The stablecoin is redeemable 1:1 for U.S. dollars and runs on Ethereum and Solana, according to CoinDesk.

This is bigger than one company launch.

Stablecoins are becoming part of banking, payments, settlement and consumer finance. They are simple to understand, easy to move and increasingly relevant as a bridge between traditional finance and crypto rails.

What May tells us

May was not the clean bullish continuation many expected after April.

But it was still an important month.

ETF flows showed that institutional demand is real, but not automatic. Bitcoin cooled. Ethereum stayed under pressure. XRP, Solana and HYPE showed signs of selective rotation. Stablecoins continued moving into mainstream finance. Regulated perpetual futures took a major step forward in the U.S.

That is the real takeaway from May.

Crypto prices were uncertain, but crypto infrastructure kept getting stronger.