A total of 12 spot Bitcoin ETFs in the US recorded net outflows of $43.97 million on September 11, according to SoSoValue data. This breakout marked the end of a two-day positive flow streak.

Notably, ARK 21Shares’ ARKB ETF recorded the largest outflow of the day, experiencing a net withdrawal of $54 million. This amount was recorded as the highest among all spot Bitcoin ETFs.

Grayscale’s GBTC was also among the significant outflows, recording a net outflow of $4.6 million. Additionally, Grayscale’s Bitcoin Mini Trust fund experienced an outflow of approximately $511,230.

In contrast, some ETFs recorded positive inflows during the day. Fidelity’s FBTC ETF had the largest net inflow of the day, adding $12.6 million. Invesco’s BTCO ETF followed FBTC, recording a net inflow of $2.6 million.

Apart from this, the remaining seven BTC ETFs did not see any trading activity for the day, including BlackRock’s IBIT ETF. BlackRock’s IBIT ETF has not recorded any net inflows since August 26, despite being the largest spot BTC ETF in terms of net assets.

Over the past three days, Bitcoin ETFs overall have seen net positive flows. A total of approximately $101.7 million was inflowed into all spot Bitcoin ETFs. However, on September 11, there was a huge increase in the trading volume of Bitcoin ETFs. Total transaction volume increased by 77% to $1.27 billion from $717 million recorded the previous day.

This shows that the volatility in the markets is reflected in the trading activity of investors. Overall, spot Bitcoin ETFs have recorded a total net inflow of $17 billion to date. At the time of writing, Bitcoin was trading at $57,932, up 2.7% in the last 24 hours.

A similar picture was observed on the Ethereum side. Nine spot Ethereum ETFs in the US experienced a total net outflow of $542,870 on September 11. The biggest outflow was seen in VanEck’s ETHV ETF, which recorded a net withdrawal of $1.7 million.

On the other hand, Fidelity’s FETH ETF was the only spot Ethereum ETF to show positive performance on the day, with $1.2 million inflows. However, this inflow failed to offset outflows in ETHV, and overall spot Ethereum ETFs experienced net outflows.

Ethereum ETFs trading volume also saw an increase on September 11. Compared to the previous day, transaction volume increased and reached $126.2 million. Spot Ethereum ETFs have recorded a total net outflow of $562.6 million to date. Ethereum price was trading at $2,354, up 1% at the time of writing.

These data reveal that the trading volume and flow dynamics of cryptocurrency ETFs change in parallel with market fluctuations. Although Bitcoin and Ethereum ETFs experience short-term inflows and outflows, these instruments continue to attract investors’ attention in the long term.