ETF Flows: SOL and XRP Gain as BTC, ETH Slip
BTC and ETH spot ETFs saw outflows on May 18, while SOL and XRP ETFs attracted fresh inflows.

- BTC spot ETFs recorded $648.64M in net outflows.
- ETH spot ETFs saw $86.31M leave the market.
- SOL and XRP ETFs posted small but positive inflows.
ETF Flows Show Mixed Investor Mood
Spot ETF flows on May 18 showed a clear split across major crypto assets. Bitcoin and Ethereum funds faced net outflows, while Solana and XRP spot ETFs managed to attract fresh capital.
BTC spot ETFs saw the biggest move, with net outflows of $648.64 million. ETH spot ETFs also moved lower, posting $86.31 million in net outflows. These numbers suggest that some investors reduced exposure to the two largest crypto assets through ETF products.
ETF Flows Favor SOL and XRP
While BTC and ETH saw money leave, SOL and XRP spot ETFs recorded positive flows. SOL spot ETFs brought in $2.06 million, while XRP spot ETFs added $750,440 in net inflows.
The amounts are much smaller compared with Bitcoin’s outflows, but the direction is important. Positive ETF flows into SOL and XRP may show that some investors are looking beyond the top two crypto assets for new opportunities.
What It Means for Crypto Markets
ETF flows are closely watched because they can show how institutional and retail investors are positioning themselves. Large BTC outflows may create short-term pressure on market sentiment, especially when paired with ETH outflows.
Still, the inflows into SOL and XRP suggest that interest in altcoin-based ETFs remains alive. Investors may be rotating capital, taking profits, or adjusting risk after recent market moves.
For now, the May 18 data points to a divided ETF market: weaker demand for BTC and ETH products, but steady interest in SOL and XRP.
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