U.S. spot Bitcoin ETFs returned to positive territory on September 14, led by a substantial inflow into BlackRock’s iShares Bitcoin Trust. IBIT attracted approximately $134.3 million during the session, while the broader category recorded $159.9 million in combined net inflows, according to Farside Investors.
According to Farside Investors’ Bitcoin ETF flow dashboard, BlackRock’s fund accounted for the majority of the day’s net inflows, with Fidelity’s FBTC adding about $53.3 million, Morgan Stanley’s MSBT bringing in $9.7 million and Franklin Templeton’s EZBC recording approximately $4.6 million.
IBIT Drives Bitcoin ETF Recovery
The positive session interrupted a run of net redemptions across the U.S. spot Bitcoin ETF category. Farside recorded four consecutive outflow sessions from September 8 through September 11, including approximately $46.6 million on September 8, $120.2 million on September 9, $282.7 million on September 10 and $13.2 million on September 11.
Not every fund participated in the September 14 rebound. ARK Invest and 21Shares’ ARKB posted roughly $42 million in net outflows, partially offsetting the capital entering IBIT, FBTC, MSBT and EZBC. Bitwise’s BITB, Invesco’s BTCO, VanEck’s HODL, WisdomTree’s BTCW and both Grayscale Bitcoin products showed no net flow in Farside’s table for the session.
The concentration around IBIT was particularly pronounced. BlackRock’s $134.3 million inflow represented roughly 84% of the category’s $159.9 million net total, underscoring how a single large product can materially shape the aggregate daily flow figure. Fidelity also contributed meaningfully, but ARKB’s redemptions reduced the overall impact of the positive flows elsewhere.
Bitcoin ETF Flows Remain Uneven Across Issuers
Farside’s cumulative data further illustrates the scale IBIT has reached within the U.S. spot Bitcoin ETF market. BlackRock’s product had accumulated approximately $64.14 billion in net inflows through September 14, well ahead of Fidelity’s roughly $10.35 billion cumulative total.
Those figures show continued demand for Bitcoin exposure through regulated exchange-traded products, but daily ETF flows do not by themselves establish whether purchases came from institutional investors, retail investors or portfolio reallocations by existing holders. They measure net capital movements into and out of the funds rather than the identity or motivation of every underlying investor.
The September 14 rebound therefore provides a clearer signal about product demand than investor intent. The next relevant test is whether the return to positive flows persists across subsequent sessions or proves to be a single-day reversal dominated by IBIT, particularly after the category’s four-session outflow streak earlier in September.