U.S. bitcoin spot exchange-traded funds (ETFs) recorded a net inflow of $532 million on May 4, marking the third consecutive day of positive flows. On the same day, U.S. ether spot ETFs added $61.29 million, a dual-asset trend that analysts interpret as evidence of deepening institutional conviction rather than short-term speculation.
Three-Day Streak Signals Coordinated Conviction
The three-day streak carries significance beyond the headline number. In crypto ETF markets, multi-day inflow runs suggest that institutional buyers are treating price moves not as short-term trading events but as accumulation opportunities. Three consecutive days of positive flows at these volumes point to coordinated conviction among major players rather than one-off positioning.
Ether ETFs have historically struggled to attract the sustained institutional flows that bitcoin products have enjoyed since their January 2024 launch. However, a session where both product types see significant positive flows signals broad-based institutional appetite extending beyond bitcoin-only strategies. At current prices, ether trades well below its all-time highs, offering institutional buyers a larger relative discount compared to bitcoin. Whether that combination of lower price and growing ETF infrastructure can generate sustained inflows — similar to what BTC experienced in October 2025 — is the central question analysts are now watching.
Historical Patterns Favor Price Continuation
Historically, sustained ETF inflow streaks have correlated with price continuation. The pattern is consistent: institutional buying creates steady demand, reduces available supply on exchanges, and compresses the selling pressure that typically follows sharp price moves. Bitcoin’s cross above $81,000 on Tuesday came directly after this accumulation sequence built over the past fortnight.
On Friday (May 2), roughly $630 million in net inflows entered the ETF complex ahead of the weekend, buoyed by Fidelity, which added $19 million into its FBTC product. Similarly, BlackRock’s European bitcoin exchange-traded product (ETP) crossed $1.1 billion in assets under management, holding 14,200 BTC as of May 4.
April saw total U.S. bitcoin spot ETF inflows of $2.44 billion, the strongest monthly figure since October 2025. If the inflow streak extends to a fourth consecutive day, the technical and fundamental case for continued upward price pressure could strengthen considerably.