BlackRock and Fidelity Swept Up Bitcoin and Ethereum Through ETFs on Monday. Here Is What the Flow Data Shows.

There is a version of Monday’s crypto market story that focuses on price. Bitcoin near six-week highs, XRP crossing $1.50 and Ethereum breaking out. That version is accurate but incomplete.

The more interesting story is what was happening in the background, where two of the world’s largest asset managers were quietly absorbing hundreds of millions of dollars worth of digital assets through regulated ETF products while most of the market was watching charts.

Two Firms, One Direction

BlackRock and Fidelity did not hedge on Monday. According to SoSoValue, BlackRock purchased 1,920 BTC worth $139.40 million and 6,940 ETH worth $16.20 million. Fidelity bought 886 BTC worth $64.50 million and 16,026 ETH worth $34.90 million. Both firms added both assets on the same day. That is not a coincidence of independent decisions. It reflects a shared read on market conditions from two institutions whose research desks are among the most resourced in traditional finance.

Together they drove virtually the entire $199.40 million net inflow into Bitcoin ETFs and the majority of the $35.90 million net into Ethereum ETFs. The rest of the ETF complex was largely a spectator.

Grayscale Sold Into Their Buying

While BlackRock and Fidelity were adding, Grayscale sold approximately 7,000 ETH worth $15.20 million from its Ethereum product. That selling is not new behavior. Grayscale has been a consistent net seller since the Ethereum ETF launches, as legacy holders rotate into lower-cost alternatives. What matters is that Fidelity and BlackRock absorbed that supply entirely and still generated a net positive day for the category. The bid was stronger than the ask.

Where the Rest of the Market Stood

Solana / SOL ETFs brought in $2.10 million, Chainlink / LINK attracted $904,090, and Avalanche / AVAX added $532,220. Modest numbers, but all positive. XRP was the sole outlier, recording $5.98 million in outflows despite the token itself gaining on the day. Some holders sold their ETF positions into strength rather than adding. That behavior tells its own story about where conviction sits in the XRP ETF market right now.

LTC, HBAR, DOGE, and DOT recorded zero flows across the board.

What $232 Million Actually Means

The total net inflow of $232.86 million across all US spot crypto ETFs is not a record. It is not even close to the peak days seen earlier in the cycle. What it represents is something arguably more durable than a single large number: consistent, multi-asset institutional buying on a day when prices were moving and sentiment was turning. That combination, real capital following real price action rather than chasing it, is what sustainable rallies are built on.

The question heading into the rest of the week is whether Monday was an isolated conviction day or the opening move of something more sustained.

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