Three weeks ago, Bitcoin (CRYPTO: BTC) ETFs were recording strong weekly inflows. The funds were pulling in close to a billion dollars a week, the seventh straight week of net inflows, and the institutional money looked ready to push BTC back toward its highs. Then the picture changed.
Bitcoin spot ETFs are now coming off their longest outflow streak since they first launched in January 2024, bleeding heavily across all of May. Meanwhile, XRP (CRYPTO: XRP) spot funds did the opposite. They pulled in $131.94 million across the month with zero outflow days, every trading session either positive or flat.
So is institutional money rotating into XRP, or is XRP just too small for institutions to dump it the way they dumped Bitcoin?
How Far Apart Bitcoin and XRP ETF Flows Really Got in May
XRP ETFs had one of the best months of any major crypto fund category. U.S. spot XRP ETFs pulled in $131.94 million across May, taking their cumulative net inflows past $1.42 billion since they launched in November 2025. There was also not a single outflow day in the month.
Meanwhile, Bitcoin ETFs went the opposite direction. They shed $2.43 billion across the month, with 10 straight trading days of outflows ending May 29, which was the longest withdrawal streak since the products launched in January 2024. The previous record was 8 days, set twice. So this is the worst run these funds have ever had, showing it’s not just a typical pullback.
Ethereum spot ETFs had their own bad month, losing about $540 million, with nearly every trading day from May 11 onward closing negative. So, the two major crypto ETF categories—Bitcoin and Ethereum—were bleeding at the same time.
It’s also worth poiting out that Bitcoin ETFs had exactly one positive day in the back half of May, on May 14, when they pulled in $131 million. But what’s striking is that, the single best day for Bitcoin was almost exactly equal to XRP ETFs’ entire monthly inflow. This goes to show how enormous the gap between Bitcoin and XRP institutional flows really is.
Why Bitcoin and Ethereum Funds Are Bleeding
Bitcoin and Ethereum ETFs both posted heavy outflows across May, but the drivers behind each are slightly different. Bitcoin’s bleed comes from macro pressure forcing institutions to cut exposure, while Ethereum’s bleed adds product structure and competition issues on top of the same macro forces. Here’s how each side broke down.
Bitcoin
Through March and April, Bitcoin spot ETFs pulled in around $3.3 billion combined, and the funds were on a seven-week positive run that had Bitcoin pushing back toward $80,000. Then everything changed in the middle of May.
Inflation data changed the macro picture. April’s CPI came in at 3.8% year-over-year—the hottest reading since May 2023—and April’s PPI hit 6%, which was the biggest wholesale-price jump since 2022. Markets had come into the month pricing in rate cuts, but they left it pricing in possible rate hikes. That hurt institutional risk appetite, and Bitcoin ETFs were the most obvious place to cut exposure.
Beyond the inflation reset, the pressure has stayed on. The Iran war, which started in late February, has kept gasoline prices elevated, up 15.6% in April, and continues to weigh on energy markets. The conditions that drove the bleed are not unwinding any time soon.
The selling pressure has also moved beyond just rate concerns. Glassnode notes that ETF demand has weakened too much to support Bitcoin above its cost basis around $78,000, meaning the streak reflects a structural softening of institutional demand rather than normal market volatility.
The biggest signal of how deep that softening got came on May 26. An unknown entity sold $1.29 billion of BlackRock’s spot Bitcoin ETF in a dark pool trade at 10:30 in the morning. When one investor exits at that size in a single trade, that is institutional capitulation, and it sets the tone for the days of outflows that followed.
Ethereum
Ethereum ETFs have been hit by the same macro forces, but with extra weight on top. ETH dropped below the $2,200 support level during the May bleed, and most U.S. spot Ethereum ETFs still do not pass through staking yield to shareholders, which makes them less attractive than holding ETH directly.
On top of that, Ethereum is still competing with faster Layer 1 networks like Solana for institutional attention, and that competition has hurt ETH’s standalone investment case. The combination of macro pressure, weaker product structure, and competitive squeeze is why ETH ETFs have bled almost daily from May 11 onward.
Why XRP Funds Stayed in the Green All Month
XRP is not immune to the same macro forces hitting Bitcoin. The dollar, inflation, oil, and Iran affect XRP the same way they affect every crypto asset. Solana ETFs also recorded inflows through the month, with $115.34 million in monthly net inflows, so the rotation away from Bitcoin and Ethereum was not entirely XRP-specific. But XRP led the pack, and the reasons XRP led are worth explaining.
The main reason XRP flows held up is the CLARITY Act, which is the strongest regulatory signal XRP has had. The Senate Banking Committee advanced the bill 15-9 on May 14, and a full-Senate vote later this year is realistic. Institutional money positions ahead of regulatory clarity, not after, and the Bitwise and Franklin Templeton XRP ETFs have led May inflows for that reason. Both funds attract institutional buyers that do months of due diligence before committing capital.
The second reason is when these ETFs launched. XRP ETFs went live in November 2025, about seven months ago. Bitcoin spot ETFs have been around since January 2024, more than two years. Bitcoin’s funds already absorbed the institutional money that had been waiting for the product. XRP’s are still in the absorption phase, where new allocators are buying in for the first time. This timing gap supports steady buying through periods when older products see redemptions.
The data also suggests XRP is not being dragged down by Bitcoin’s selloff the way it has been in previous cycles. Bitcoin’s 30-day correlation to tech stocks has loosened in recent weeks, from around 0.71 to 0.48, which means BTC’s bleed is specifically a crypto problem rather than a broad risk-off event. XRP has avoided getting pulled along with it.
Institutional Rotation Into XRP, or Just a Scale Gap?
The split could mean two things: institutional rotation, or a scale gap. XRP ETFs hold $1.12 billion in net assets, equal to 1.37% of XRP’s market cap. Bitcoin ETFs hold $94.17 billion, equal to 6.38% of Bitcoin’s market cap.
The Bitcoin pool is 84 times bigger in absolute dollars, and relative to its underlying asset, it is nearly five times more saturated. For XRP ETFs to bleed at the same proportional rate Bitcoin’s bled this month, they would need to lose about $29 million. They did not even come close.
What happens in June determines which one is right. If XRP ETF inflows accelerate further while Bitcoin’s bleed continues, that is institutional rotation, with allocators actively choosing XRP. But if XRP flows stay flat while Bitcoin recovers, May was a scale gap effect, and XRP simply did not have enough capital invested for institutions to dump it the way they dumped Bitcoin.
The CLARITY Act will likely decide which one is right. If the bill passes the full Senate, institutional money gets the regulatory clearance to position into XRP in much larger amounts, and that is when rotation becomes a confirmed pattern.