TLDR
BlackRocks iShares Bitcoin Trust (IBIT) led recent spot Bitcoin (BTC) ETF inflows, with ARK 21Shares (ARKB) and Fidelitys Wise Origin (FBTC) next in the Dec 30 rebound, per a Cointelegraph report.
- IBIT (BlackRock): $143.75M on 30 Dec 2025 (Cointelegraph).
- ARKB (ARK 21Shares): $109.56M (Yahoo Finance).
- FBTC (Fidelity): $78.59M (crypto.news).
Deep Dive
1. IBIT Led
IBIT topped daily inflows during the Dec 30 reversal, signaling that the largest fund remains the main conduit for institutional demand. The session ended a seven?day outflow streak as spot BTC ETFs took in $355M overall, with IBITs $143.75M the single biggest allocator, per the Cointelegraph report.
When flows concentrate in IBIT, it often reflects broad allocator activity rather than niche buying, so persistence over multiple sessions matters more than a single strong day.
2. ARKB Followed
ARK 21Shares ARKB ranked second with $109.56M, reinforcing its position among the leading issuers. Coverage noted additional but smaller allocations to Bitwise (BITB), VanEck (HODL), and Grayscale (GBTC), consistent with a broad yet tiered rebound across issuers (Yahoo Finance).
A diversified inflow profile across multiple funds can indicate healthier breadth, but size still skews to the top three, which tend to set the tone.
3. FBTC In Third
Fidelitys FBTC added $78.59M on the day, placing third among the leaders. Coverage emphasized the reversal after a week of net outflows, while also noting that flows can flip day to dayDec 31 saw renewed outflows across several issuers, underscoring near?term noise (crypto.news; follow?on outflow reference: CryptoNews coverage).
Treat one?day flow spikes as signals to watch, not conclusions. Confirmation is a string of positive sessions and rising aggregate net inflows.
Conclusion
IBIT, ARKB, and FBTC led the Dec 30 inflow rebound, with IBIT clearly on top. The takeaway is persistence: if inflows continue across multiple sessions and remain concentrated in the largest funds, it strengthens the case for improving institutional demand; if they fade quickly, it points to ongoing choppy risk appetite.
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