“Uptober”—the nickname traders give to October, a month that has historically delivered strong returns for Bitcoin—hasn’t lived up to its name for crypto exchange-traded funds this year, with U.S. spot Bitcoin, Ethereum, and Solana ETFs all sitting in negative territory for the month.

U.S. spot Bitcoin ETFs took in $21.1 million on Friday, according to Decrypt’s ETF tracker—a modest bounce after back-to-back outflows of $484.9 million on Wednesday and $244.1 million on Thursday. Wednesday’s exit was the funds’ worst single day since June. Even so, the funds are down a net $386.3 million through the first seven trading days of October.

Bitcoin and other crypto asset ETFs allow investors to gain exposure to digital currencies without using crypto exchanges or wallets. The funds track the price of the underlying asset and trade like stocks on brokerage apps. Inflows reflect new money coming in as fund shares are created, while outflows mean investors are redeeming shares and pulling cash out. Spot Bitcoin ETFs debuted in January 2024, followed by Ethereum funds in July 2024, with spot Solana ETFs arriving more recently. The products have been highly successful since their launch, and the daily flow of money in and out of the funds has become a reliable gauge of current market sentiment.

The month started strong, with $292.6 million in inflows across Oct. 1 and 2. A $118.8 million inflow on Oct. 6 could not offset the selling that followed.

The pullback marks a sharp reversal from September. After the Senate’s failed cloture vote on the Clarity Act—a crypto market-structure bill—triggered heavy outflows in mid-September, Bitcoin ETFs reeled off a nine-session inflow streak worth roughly $3 billion. That run pushed 2026’s year-to-date flows back into positive territory.

Ethereum ETFs have fared worse. The funds shed $56.1 million on Friday, extending their outflow streak to nine straight trading days. They have lost $635 million so far in October and nearly $700 million over the full streak, with the heaviest single-day exit, $201.9 million, coming on Oct. 6. Cumulative net inflows since launch stand at $13.2 billion, and total net assets are $14.5 billion.

Solana ETFs are also in the red for October, though on a much smaller scale. The funds lost $3.8 million on Friday, their fifth straight day of outflows, bringing October’s net total to a loss of $24.8 million. Their only inflow this month was $1.3 million on Oct. 2. Cumulative net inflows stand at $137.9 million.

For Bitcoin ETFs, cumulative net inflows since launch total $57.6 billion, and the funds hold $100.6 billion in total net assets, according to Decrypt’s tracker—more than six times the $14.5 billion held by Ethereum funds. With the bulk of October’s trading sessions still ahead, the monthly figures for all three assets remain running totals, updated with each daily flow report.

Source: Decrypt