Which ETFs saw biggest BTC outflows?

TLDR

The biggest BTC ETF outflows this week came from Fidelitys FBTC and BlackRocks IBIT, varying by day.

1. On 7 Jan (UTC), Fidelitys FBTC saw about $312 million outflow, while Grayscales GBTC had roughly $83 million outflow (report).
2. On 9 Jan, BlackRocks IBIT led with about $193.34 million outflow; Fidelitys FBTC had $120.5 million (update).
3. On 10 Jan, BlackRocks IBIT had about $252 million outflow; Fidelitys FBTC saw a small $7.9 million inflow (flows snapshot).

Deep Dive

1. 7 Jan Leaders

Fidelitys FBTC was the largest single?day outflow on 7 Jan at approximately $312 million.

1. The same session showed $243 million net outflow across BTC spot ETFs, with Grayscales GBTC around $83 million outflow and BlackRocks IBIT taking in $228 million inflow (report).
2. Another breakdown highlighted Grayscales main and mini trusts totaling ~$116 million outflow that day (analysis).

2. 9 Jan Leaders

The largest outflow shifted to BlackRocks IBIT on 9 Jan at about $193.34 million.

1. BTC spot ETFs recorded $398.95 million net outflow on the day, with Fidelitys FBTC at $120.5 million; funds from Ark & 21Shares and Grayscale also saw outflows (update).
2. The three?day stretch of redemptions erased nearly all of the first two trading days inflows, totaling ~$1.128 billion in outflows (overview).

3. 10 Jan Snapshot

IBIT again topped outflows on 10 Jan with about $252 million, while FBTC posted a modest $7.9 million inflow.

1. Aggregate BTC ETF net outflow was roughly $250 million that day, with Bitwises BITB near $5.9 million outflow (flows snapshot).
2. This followed prior days where total net outflows reached ~$486 million (7 Jan) and ~$398.95 million (9 Jan), underscoring a short streak of redemptions (live recap, update).

Conclusion

Outflow leadership rotated between Fidelitys FBTC and BlackRocks IBIT across the week, with Grayscales GBTC also seeing notable redemptions on 7 Jan. The three?day net outflow (~$1.128 billion) suggests tactical repositioning rather than a structural demand shift. Monitoring IBIT and FBTC day by day gives the clearest read on near?term Bitcoin ETF flow pressure.