Farside’s currently reported $137.3 million U.S. spot Bitcoin ETF inflow on Aug. 17 rested heavily on Fidelity, leaving the session short of a market-wide demand signal.
Fidelity Wise Origin Bitcoin Fund, or FBTC, supplied $111.9 million, equal to 81.5% of the displayed total, according to Farside’s live table. ARKB added $14.2 million and MSBT added $11.2 million. Those were the only three numeric inflows in the row; the remaining reported fund entries were 0.0.
BlackRock’s iShares Bitcoin Trust, or IBIT, did not have a numeric entry. Farside displayed a dash, which its table visually distinguishes from 0.0 without providing a legend for the symbol. The current snapshot therefore did not establish a zero flow for IBIT, and the session total remains provisional.
Bitcoin ETF inflow recovered only 35.6% of prior outflow
The positive print followed a five-session net outflow of $385.2 million. Farside’s full flow history listed daily totals of negative $144.6 million, positive $7.8 million, negative $61.1 million, negative $131.1 million and negative $56.2 million from Aug. 10 through Aug. 14.
The Aug. 17 inflow recouped 35.6% of that loss. Across all six sessions, the funds still showed a cumulative $247.9 million net outflow.
Fund composition made the reversal less convincing than the positive headline number alone. FBTC provided more than four-fifths of the currently reported inflow, while ARKB and MSBT supplied the remainder. The unresolved IBIT cell also means the concentration ratio could change when Farside completes or revises the row.
Three positive fund entries can produce a positive aggregate without showing participation across the full group. A broader follow-through would require positive contributions from more products rather than another session dominated by one issuer.
The flow data do not identify who bought the ETFs. Institutions, advisers and retail accounts can all use the products, so the current table cannot support a claim that institutional demand broadly returned. It also does not establish that ETF flows caused a move in Bitcoin’s price.
A July CryptoSlate analysis documented a previous ETF recovery that was erased by the next reversal. That earlier episode does not predict the next flow, but it shows why one positive session offers limited evidence of durability.
The next completed Farside update will clarify both parts of the test: whether IBIT changes the Aug. 17 total and whether ETF flows broaden beyond Fidelity across subsequent sessions.
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