TLDR
Fidelity Wise Origin Bitcoin Fund (FBTC) led recent outflows, with about $230.1M on 16 Dec and $170M on 18 Dec per flow trackers and media summaries (Yahoo Finance, Binance Square summary of SoSoValue).
- Other outflow leaders on 16 Dec: Bitwise Bitcoin ETF (BITB) $44.3M and ARK 21Shares Bitcoin ETF (ARKB) $34.3M (Yahoo Finance).
- BlackRock iShares Bitcoin Trust (IBIT) showed no flow on 16 Dec and a $32.76M inflow on 18 Dec (Yahoo Finance, Binance Square summary).
- Flows are choppy. After outflows on 16 Dec, spot BTC ETFs saw $457.3M inflows on 18 Dec, with FBTC taking $391.5M (Yahoo Finance).
Deep Dive
1. FBTC Led Outflows
On 16 Dec, FBTC posted approximately $230.1M in redemptions. Two days later, 18 Dec, it again showed the single largest outflow among BTC ETFs at about $170M (Yahoo Finance, Binance Square summary of SoSoValue).
Mondays have been frequent pressure points for BTC and ETF flows this year, aligning with several local lows and larger outflow prints (CoinDesk).
FBTC is a large, active vehicle. When rebalancing or de-risking hits, it often shows up first and biggest in its daily flow figures.
2. Other Funds With Outflows
On 16 Dec, Bitwise Bitcoin ETF (BITB) saw about $44.3M in outflows and ARK 21Shares Bitcoin ETF (ARKB) about $34.3M. BlackRocks IBIT registered no net flow that day (Yahoo Finance).
On 18 Dec, while FBTC had a large outflow, IBIT recorded a $32.76M inflow, illustrating how leadership can diverge by fund even on the same day (Binance Square summary).
Fund-level flows can differ materially day to day. Looking across tickers avoids over-attributing a single funds flow to the whole category.
3. Flows Are Volatile, Not One-Way
Despite the 16 Dec outflow spike, the very next major print on 18 Dec showed $457.3M total inflows into spot BTC ETFs, led by FBTC with $391.5M and supported by IBIT $111.2M (Yahoo Finance).
This ebb and flow pattern often tracks macro data days and risk sentiment, a point echoed by coverage tying outflows to Monday downdrafts and rate expectations (CoinDesk).
Outflows can reverse quickly. If you monitor trend rather than a single day, you reduce the chance of misreading a one-off rebalance as a structural shift.
Conclusion
In the past week, the largest daily outflows were concentrated in Fidelitys FBTC, with BITB and ARKB also posting meaningful redemptions on 16 Dec. However, flows remain two sided, with strong category inflows returning on 18 Dec. The takeaway is to track multi-day patterns by fund rather than anchoring on a single session.
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