U.S. spot bitcoin ETFs recorded $131.1 million of net outflows on Aug. 13, according to Farside Investors' daily flow table. The same table shows a $5.9 million net inflow for U.S. ether ETFs, leaving the latest session with a split result across the two largest crypto-asset products.
Bitcoin redemptions were concentrated
ARKB posted the largest single-fund outflow at $58.8 million, followed by Fidelity's FBTC at $55.1 million and Grayscale's GBTC at $36.3 million. BlackRock's IBIT lost $5.7 million. Smaller positive flows from Morgan Stanley's MSBT and Grayscale's bitcoin trust conversion offset part of those redemptions, but not enough to keep the category positive.
The outflow followed a $61.1 million net withdrawal on Aug. 12. Bitcoin ETFs had recorded a $7.8 million inflow on Aug. 11, so the latest data describe a short run of uneven demand rather than a straight-line exit.
Ether funds moved the other way
Ether ETF flows were modestly positive. Grayscale's smaller ETH product brought in $6.5 million, while the category's main negative line, ETHA, lost $600,000. The resulting $5.9 million net inflow is small beside the bitcoin outflow, but it shows that listed-vehicle demand did not move uniformly across crypto assets.
What the table can and cannot say
Daily creations and redemptions are a useful demand signal, but they do not identify why investors moved money or prove that ETF flows caused a price change. Flows can reflect portfolio rebalancing, hedging, profit-taking or activity by arbitrage participants as well as a fresh view on bitcoin or ether.
Farside says its table is generated automatically and may contain errors. Its Aug. 14 row was still blank when checked, so the Aug. 13 figures are the latest settled session in this report. The next useful comparison is whether bitcoin outflows persist after the weekend or whether the two ETF categories return to the mixed, low-conviction pattern seen earlier in the week.
