Altcoin ETF Inflows Stretch Across Six Weeks of XRP Gains
Altcoin ETF inflows neared $90 million as XRP and Solana extended winning streaks, while Hyperliquid and Chainlink funds also gained.
US-listed crypto ETFs outside Bitcoin and Ethereum pulled in nearly $90 million in the week ended Aug. 21, with XRP, Solana, Chainlink and Hyperliquid funds all posting positive flows as their underlying tokens ripped higher, according to data from SoSoValue.
The Flow Numbers, Asset by Asset
XRP products led the group with $39.78 million of net inflows, their strongest weekly showing since the week ended May 15, when they attracted about $60.5 million. Solana funds followed with $28.34 million, while Chainlink and Hyperliquid products added $13.35 million and $3.89 million, respectively.
The rally that accompanied those flows was sharp. XRP climbed roughly 50% from below $1 during the week to as high as $1.60 before retreating to $1.49 at press time – a move covered in detail in this breakdown of the ETF inflows behind the XRP breakout. Solana jumped about 24% and briefly traded above $100 for the first time since February, then slipped back to around $93.
For context on the scale gap: spot Bitcoin funds pulled in $1.92 billion during the same week, and Ethereum products added roughly $697 million, taking their combined haul to $2.61 billion – the strongest week for the two majors since October 2025. The nearly $90 million entering altcoin products is a fraction of that, but the inflow streaks tell a different story than the raw dollar comparison suggests.
XRP and Solana Reclaim May Highs
XRP‘s $39.78 million intake extended its run of positive weekly flows to six consecutive weeks, with the products attracting about $72 million over that stretch. Cumulative net inflows since the US products launched now stand at roughly $1.55 billion, and weekly trading volume hit a record $271.74 million as activity accelerated alongside the price breakout.
Solana funds have built an even longer streak – eight consecutive positive weeks, bringing in about $56.3 million over that period and lifting cumulative net inflows to around $1.19 billion. The $28.34 million weekly figure was the largest since roughly $58 million entered the products in mid-May, and it lines up with the token’s technical setup detailed in this look at SOL’s breakout and reversal risk above $100. Investors watching institutional demand for staking-linked products may also want to track the dynamics covered in this piece on regulated Solana staking ETF flows, which adds another layer to how capital is entering the asset.
Hyperliquid Gets a Washington Boost
Hyperliquid funds attracted $3.89 million for a third consecutive positive week, taking inflows over that three-week stretch to nearly $10 million. Cumulative net inflows now stand near $287 million, with assets in the products climbing above $350 million as HYPE rallied to a record of about $82 before easing to $79 at press time.
The catalyst was policy-driven rather than purely technical. President Donald Trump used an Aug. 19 White House meeting with crypto executives to highlight efforts to establish a legal route for Hyperliquid to operate in the US, adding a regulatory signal to the price move. Trump also urged Congress to advance crypto market-structure legislation during that meeting, part of a string of signals that helped lift digital-asset prices during the week.
Chainlink’s Strongest Week Since Launch
Chainlink funds recorded their strongest resurgence since debut. The $13.35 million weekly inflow was the largest since the products attracted about $48 million during their debut week, pushing cumulative net inflows to roughly $142 million. LINK gained about 22% during the week, touching $12 for the first time since January before retreating to $11.40.
Demand further down the ETF stack remained modest by comparison. Avalanche products attracted about $1.3 million, Hedera funds drew roughly $848,000, and Dogecoin ETFs added $654,416 – a reminder that this rotation is concentrated in a handful of names rather than spread evenly across the altcoin ETF complex.
A Broadening Bid, With Limits
Together, the flows show the institutional bid spreading deeper into crypto after months in which allocations outside Bitcoin and Ethereum were comparatively subdued. But the roughly $90 million entering these altcoin products remains small next to the $2.61 billion absorbed by Bitcoin and Ethereum ETFs in the same week, and that gap raises a fair question about how much conviction is actually behind the altcoin rally versus how much is simply riding the majors’ momentum.
The multi-week streaks in XRP and Solana in particular suggest something more durable than a single-week pop tied to a headline. Six straight weeks of XRP inflows and eight straight weeks for Solana are the kind of pattern that’s harder to dismiss as noise, even if the absolute dollar figures are modest against Bitcoin and Ethereum’s ETF machine. Whether that persistence continues likely depends on both token price action holding up and further regulatory clarity following Trump’s comments on Hyperliquid and market-structure legislation.
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