The second week of May 2026 painted a starkly divided picture for spot altcoin ETFs in the US. XRP ETFs recorded $60.5 million in weekly net inflows, the highest single-week figure all year, with all five products seeing positive flows. Hyperliquid's spot ETF, launched on May 12, attracted $69.6 million, including $25 million on day one, and $HYPE jumped nearly 50% since launch.
Narrative Drives Capital: XRP's Regulatory Tailwind vs. HYPE's DeFi Momentum
Analysts highlighted that broad participation across all XRP ETFs indicated growing investor confidence rather than isolated buying. Prior weekly records from January through March were significantly lower, and even April showed only moderate demand. Hyperliquid's rapid accumulation was similarly broad-based.
Meanwhile, Polkadot, Litecoin, Avalanche, and Hedera ETFs recorded zero net inflows for the entire week. Several products, including those tied to AVAX, DOGE, and HBAR, saw no capital movement at all. VanEck's US spot Avalanche ETF debuted with just $330,000 in trading volume and zero inflows, a sharp contrast to the Bitwise Solana ETF's $69 million inflow on its launch day.
Bitcoin Dominance Near 60% Squeezes Altcoin Attention
Bitcoin trades around $86,700 with a market cap of ~$1.73 trillion, and Bitcoin dominance hovers near 60%, drawing liquidity away from alts. The Altcoin Season Index sits at a low 24, and total altcoin market cap has dropped from ~$1.79 trillion to $1.35 trillion. Historically, when BTC dominance is near 60%, altcoins struggle to attract fresh capital.
Institutions now allocate to Bitcoin first, then selectively rotate into high-conviction altcoins. Currently, that rotation favors assets with live ETF momentum and near-term catalysts: XRP benefits from the CLARITY Act narrative, HYPE from its DeFi story and aggressive marketing. DOT, LTC, AVAX, and HBAR lack both a hot narrative and institutional momentum.
What Could Change for the Zero-Inflow Coins
LTC still has a potential catalyst: pending US spot ETF approval. But analysts note "pending" is not "approved" — capital won't flow until clearance. Hedera has 15 active ETF filings under SEC review, including from Grayscale and Bitwise, and the Canary HBAR ETF holds ~549 million HBAR. Yet zero inflows this week suggest holding is not buying conviction.
Standard Chartered projects $4 to $8 billion in annual XRP ETF inflows — but only if regulatory clarity arrives. A CEO whose firm was among the first to file for a spot XRP ETF said post-midterm conditions, combined with potential passage of the CLARITY Act and growing tokenization activity, could accelerate ETF flows — though summer may bring pressure across both equities and crypto.
To reverse their zero-inflow streak, DOT, LTC, AVAX, and HBAR need either a narrative catalyst or a broad altcoin season that lifts all assets. With the Altcoin Season Index at 24 and BTC dominance near 60%, neither condition exists today. Yet cycles turn, and assets with ETF infrastructure — even unused — tend to move fast when they do.