CryptoSlate
U.S. spot Bitcoin ETFs drew $433 million in net inflows on Friday, Sept. 18, led by Fidelity's FBTC with $310.7 million. BlackRock's IBIT added $108.4 million, while BITB, ARKB and HODL also posted positive flows. The session extended the rebound to two days, but did not fully erase the week's losses.
Why it matters
Friday marked a shift in issuer leadership. Fidelity was the largest contributor after playing a secondary role in Monday's inflow session, while BlackRock remained positive. The broader issuer participation suggests demand was not concentrated in IBIT alone, although one session is not enough to establish a durable change in allocation patterns.
The two-day rebound produced $592.5 million of combined inflows, compared with $746.3 million of withdrawals on Tuesday and Wednesday. The week therefore ended with just $6.1 million in net inflows. Across the full five sessions, IBIT attracted $120.6 million, ahead of FBTC's $79.9 million.
Market impact
The data points to a partial recovery rather than a clean reset. Friday's flows repaired most of the midweek damage, but the weekly result remained close to flat and BlackRock still ranked as the larger weekly beneficiary.
The withdrawals came on Sept. 15 and Sept. 16, around the Federal Reserve's 25-basis-point rate increase to a 3.75% to 4.00% target range. The timing provides macro context, but the ETF data does not establish that the policy decision caused either the outflows or the rebound. The next sessions will show whether Fidelity and smaller issuers continue contributing alongside BlackRock.
Frequently asked questions
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How much did Fidelity's FBTC contribute to Friday's Bitcoin ETF inflows?
FBTC contributed $310.7 million of Friday's $433 million in net inflows to U.S. spot Bitcoin ETFs.
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How did Fidelity's flow compare with BlackRock's IBIT?
FBTC added $310.7 million, nearly 2.9 times IBIT's $108.4 million. Fidelity led Friday's session, although IBIT led the full week.
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Did the two-day rebound fully recover the week's Bitcoin ETF withdrawals?
No. Thursday and Friday generated $592.5 million of inflows against $746.3 million of withdrawals on Tuesday and Wednesday, leaving a $153.8 million gap.
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Which Bitcoin ETF led the full week?
BlackRock's IBIT led the five-session period with $120.6 million in net inflows, compared with $79.9 million for Fidelity's FBTC.
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What did the week’s ETF total indicate about institutional demand?
The week ended with only $6.1 million of net inflows, indicating a near-flat result. Friday broadened participation, but one session did not establish a lasting allocation shift.
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