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Bitcoin ETFs Dodge Second Straight Weekly Outflow as $433M Friday Inflow Reverses Loss

In Bitcoin News
September 21, 2026
  • US spot Bitcoin ETFs recorded US$6.1 million in net inflows for the week after a strong finish on Thursday and Friday.
  • BlackRock’s IBIT and Fidelity’s FBTC accounted for most of the individual fund activity.
  • Bitcoin gained 5.77% over the week, while Solana and Zcash posted particularly strong gains.
  • Grayscale’s Zcash ETF will undergo a 3-for-1 share split as Zcash’s value has surged nearly 2,900% over the past year.

US spot Bitcoin exchange-traded funds (ETFs) saw over half a billion USD flow in towards the end of the week: US$159.5 million (AU$223.8 million) on Thursday and US$433 million (AU$607.6 million) on Friday, according to data from Farside Investors.

That reversed the trend seen on Tuesday and Wednesday, when the funds suffered combined net losses of US$746.3 million (AU$1.04 billion). After Monday’s US$159.9 million (AU$224.3 million) net inflow, weekly net inflows came to US$6.1 million (AU$8.5 million).

At the individual fund level, only two funds saw much movement: BlackRock’s IBIT and Fidelity’s FBTC. Over the week, US$120.6 million (AU$169.2 million) in net flows went into IBIT, while US$79.9 million (AU$112.1 million) went into FBTC.

Overall, the prior week ended with US$462.7 million (AU$649.2 million) exiting the ETFs after a week of outflows.

Total cumulative inflows since launch now stand at US$55 billion (AU$77.1 billion), up from a low of US$50 billion (AU$70.1 billion) in July, but still below the peak of US$63 billion (AU$88.3 billion), as Bloomberg’s Senior ETF Analyst Eric Balchunas noted on X:

In total, the US ETFs now hold 1.25 million BTC, around 5.99% of Bitcoin’s 21 million total supply, at a current market value of US$102.2 billion (AU$143.3 billion).

Related: JPMorgan: Bitcoin Could See Stronger ETF Demand Than Gold

BTC Gains, Zcash Steals the Show

Meanwhile, the underlying asset, Bitcoin, has gained 5.77% over the past week, currently trading at US$81,288 (AU$114,039) on the back of a broader crypto rally. Altcoins like Ethereum (+6.69%), XRP (+5.2%), Solana (+11.49%) and Zcash (+42.09%) also rallied.

This comes as Grayscale’s Zcash ETF will execute a 3-for-1 share split, with shareholders receiving two additional shares for each one held while the total value of their investment remains unchanged. The move follows a nearly 2,900% surge in Zcash over the past year, just weeks after Grayscale converted its Zcash Trust into a spot ETF.

Ethereum ETFs, on the other hand, saw net outflows of US$140.6 million (AU$197.2 million) last week, ending a four-week net inflow streak.

Read also: AI Agents Could Put Blockchain Blockspace to the Ultimate Stress Test

The post Bitcoin ETFs Dodge Second Straight Weekly Outflow as $433M Friday Inflow Reverses Loss appeared first on Crypto News Australia.

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Eugene K. Elias is a technology journalist passionate about the intersection of artificial intelligence and blockchain. With a background in computer science, he breaks down complex technical concepts into accessible insights for readers. At Satoshi News Africa, Eugene covers DeFi, Web3 development, and the latest blockchain innovations shaping the future of finance. Outside of work, he’s an avid chess player and a mentor to young programmers.