How many days of ETF outflows?

TLDR

For US spot Bitcoin ETFs, there is no ongoing streak today. The last clear outflow streak was two days (Dec 1617), then a $457 million inflow on Dec 18 %%CKPROTECTED0%%.

1. Bitcoin ETFs: two-day outflow streak ended by Dec 18 inflows confirmed the prior two-day outflows.
2. Ether ETFs: six to seven consecutive outflow days around Dec 1820 %%CKPROTECTED0%%.
3. Weekly context: Dec 1519 saw $497 million net outflows for Bitcoin ETFs per weekly summary.

Deep Dive

1. Bitcoin Outflow Streak

The most recent streak for US spot Bitcoin ETFs lasted two sessions, Dec 16 and Dec 17, with about $277 million in net outflows on Dec 16 and further redemptions on Dec 17 %%CKPROTECTED0%%.

That streak was broken by a $457 million net inflow on Dec 18, led by IBIT and FBTC as noted above.

2. Ether Outflow Streak

Spot Ethereum ETFs showed a longer run of consecutive outflow days. Coverage cites five to seven straight days around Dec 1820, with one report noting seven consecutive sessions of net redemptions in the article above.

Other summaries referenced at least six consecutive days by Dec 18, reinforcing the sustained pressure in ETH products in the coverage above.

3. Weekly Flow Picture

Across the week of Dec 1519, Bitcoin ETFs had $497 million net outflows (ET), showing weekly pressure even with the big Dec 18 inflow day per the weekly summary above.

Flows remained net negative again on Dec 22 with $142 million out another daily read.

Conclusion

There is no active multi-day outflow streak for Bitcoin ETFs today. The last streak (two days) ended with a large inflow on Dec 18, while Ether ETFs showed a longer outflow run. Flows remain mixed; the weekly picture has leaned negative, so watch daily and weekly prints together to judge institutional demand.