U.S. spot bitcoin funds posted a record $563.7 million daily outflow

U.S. spot bitcoin exchange-traded products recorded an estimated $563.7 million of net outflows for the May 1, 2024 trading session, the largest one-day withdrawal tally since the group began trading in January. The result mattered because the products had become the clearest bridge between bitcoin and conventional brokerage accounts; the May 1 reversal showed that bridge could transmit redemptions as well as demand.

Farside Investors’ fund-by-fund table, denominated in U.S. dollars and reported in millions, attributes $191.1 million of net outflow to Fidelity’s Wise Origin Bitcoin Fund (FBTC), $167.4 million to Grayscale Bitcoin Trust (GBTC), $98.1 million to ARK 21Shares Bitcoin ETF (ARKB), and $36.9 million to BlackRock’s iShares Bitcoin Trust (IBIT). The remaining negative entries sum to $70.2 million, producing the $563.7 million aggregate. Contemporaneous reporting identified the IBIT figure as that fund’s first daily net outflow.

Those are daily fund-flow estimates, not exchange trading volume and not a direct measure of bitcoin sold on crypto venues. Farside’s table is generated automatically and carries an error-and-inaccuracy disclaimer. A separate contemporaneous report using SoSoValue data produced the same aggregate, which strengthens the record but does not turn the estimate into an official regulatory statistic.

A risk-off session before the Fed

Bitcoin was already under pressure before the U.S. fund tally was complete. Reuters reported at 9:31 a.m. UTC on May 1 that bitcoin had fallen as much as 5.6% during the session and was last down 4.8% at $57,001. That quotation was a point-in-time market reading rather than a daily close, and crypto prices vary by venue. Reuters also placed the move 22% below its cited March high of $73,803 and described April as bitcoin’s weakest month since late 2022.

The timing put monetary policy beside fund redemptions as a plausible source of pressure, but the evidence does not permit a clean causal split. Traders were awaiting the Federal Open Market Committee’s decision, while the post-halving market was also digesting the fading momentum of the first-quarter ETF launch. The defensible conclusion is correlation: a sharp bitcoin decline and broad U.S. spot-product outflows occurred in the same May 1 session.

Institutional demand met its first broad stress test

The Securities and Exchange Commission had approved exchange rule changes for spot bitcoin products on January 10, 2024, and trading began on January 11. The approval brought bitcoin exposure into regulated securities accounts without requiring investors to hold the asset directly. It did not amount to an SEC endorsement of bitcoin, a distinction the agency made explicitly.

By May 1, the launch narrative had therefore become part of bitcoin’s market structure. FBTC—not the previously dominant source of redemptions, GBTC—led the day’s outflow estimate. IBIT also turned negative for the first time. That breadth was more informative than any single fund’s number: investor demand across newer products could reverse together when risk appetite weakened.

What the Fed actually decided

At 2:00 p.m. EDT on May 1, the Federal Reserve maintained the federal-funds target range at 5.25% to 5.50%. It also said balance-sheet runoff would slow beginning June 1 by reducing the monthly cap on Treasury redemptions from $60 billion to $25 billion while leaving the agency-securities cap at $35 billion.

Chair Jerome Powell subsequently said it was unlikely that the next policy-rate move would be an increase. That comment offered some relief from fears of renewed tightening, but it did not erase the day’s fund-flow reversal or establish when rate cuts might begin.

Event-day assessment

The May 1 record was a warning about two-way institutional access, not proof that the ETF experiment had failed. The verified session data showed an unusually large net withdrawal from the U.S. spot-product complex while bitcoin traded sharply lower. What remained uncertain on May 1 was whether the episode marked a durable change in allocation or a single-session response to price weakness and macroeconomic uncertainty.