Which ETFs drove BTC inflows?

TLDR

BlackRocks iShares Bitcoin Trust (IBIT) and Fidelitys Wise Origin Bitcoin Fund (FBTC) led BTC ETF net inflows this week. On 10 Dec, IBIT added 192.95M and FBTC 30.58M, with others flat per a market update from Yahoo Finance.

1. IBIT and FBTC drove the days 223.52M combined inflow, with no other issuers notable that session. See the reported breakdown in the Yahoo Finance piece.
2. Earlier in the week, ARK 21Shares Bitcoin ETF (ARKB) led with about 88M in single?day inflows, per an exchange post citing Farside data.
3. On mixed days, IBIT has sometimes been the only net positive print (for example, 28.76M) while peers saw outflows, per a CoinJournal flows recap.

Deep Dive

1. IBIT and FBTC Lead

The clearest leadership came when BlackRock (IBIT) and Fidelity (FBTC) accounted for virtually all net positives. On 10 Dec, the days BTC ETF flows totaled 223.52M, with IBIT at 192.95M and FBTC at 30.58M, while other funds were flat, per the Yahoo Finance flow breakdown.

2. Rotation to ARKB (Select Sessions)

Flows rotated on some sessions. On 5 Dec, ARK 21Shares Bitcoin ETF (ARKB) led with about 88M in inflows, while Bitwise (BITB) and VanEck (HODL) posted smaller positives and IBIT had net outflow, according to an exchange post summarizing Farside prints.

3. Mixed Days and Offsets

Even on net outflow days, a single strong print from IBIT has occasionally offset peers redemptions. For example, one session showed IBIT +28.76M while GBTC and FBTC saw outflows, per the CoinJournal recap. Another day showed net positive flows driven almost entirely by BlackRock and Fidelity, per Yahoo Finance.

Conclusion

The weeks BTC inflows were primarily driven by IBIT and FBTC, with episodic leadership from ARKB on select days. The net impact on Bitcoin hinges on whether these leaders positive prints outpace redemptions elsewhere, especially from legacy conversions.