Which issuers led BTC ETF flows?

TLDR

Over the past week, the leaders in spot Bitcoin (BTC) ETF inflows were BlackRocks IBIT, followed by Ark 21Shares (ARKB) and Fidelity (FBTC), per multiple flow reports.

1. Dec 30 saw about $355 million net inflows, led by IBIT ($143.75M), ARKB ($109.56M), and FBTC ($78.59M) flows snapshot.
2. Jan 2 prints showed roughly $471 million daily inflows, with IBIT (~$287M), FBTC (~$88M), BITB ($41.5M), GBTC ($15.4M), and EZBC ($13M) daily breakdown.

Deep Dive

1. Dec 30 Flow Leaders

US spot BTC ETFs snapped a seven-day outflow streak with about $355 million in net inflows on Dec 30, led by IBIT, ARKB, and FBTC.

1. IBIT added $143.75M, ARKB $109.56M, and FBTC $78.59M, with smaller positives from BITB, GBTC, and HODL as reported by sector trackers and media flows snapshot.
2. Several outlets corroborated the composition of leaders in that session, highlighting the rotation back into the largest, lowest?fee products corroborating report.

2. Jan 2 Start?of?Year Surge

On Jan 2, BTC ETF inflows accelerated, with IBIT the clear leader and a broader set of issuers participating.

1. The day recorded roughly $471 million in BTC ETF net inflows, with IBIT near $287M, FBTC about $88M, BITB $41.5M, GBTC $15.4M, and EZBC $13M daily breakdown.
2. Additional coverage noted a multi?issuer rebound in the first days of the new year, reinforcing the concentration and leadership of IBIT at scale supplemental note.

Conclusion

BlackRocks IBIT led BTC ETF inflows in the last week, with Ark 21Shares and Fidelity close behind. The early?January prints show stronger participation but still concentrated leadership. If daily flow momentum persists across multiple issuers rather than just IBIT, that would signal deeper institutional engagement. If flows stall or flip negative, leadership could remain concentrated and breadth limited.