Spot bitcoin ETFs post record quarterly inflows as advisers rebuild positions

Spot bitcoin exchange-traded funds recorded their strongest quarter of net subscriptions since launch, with registered investment advisers rather than hedge funds driving the bulk of the increase, according to quarterly disclosures and fund flow data reviewed by BitcoinsInvestments.com.

The pattern matters because adviser allocations tend to be slower to unwind than fast-money positioning. Where hedge funds frequently pair long fund exposure with short futures to harvest basis, advisers typically hold on behalf of clients inside model portfolios that rebalance quarterly.

Fund issuers have spent the past year working through platform approvals at large wirehouses. Several of those approvals landed within the same reporting window, which helps explain why subscriptions clustered rather than arriving evenly.

Flow concentration remains a risk. A small number of funds continue to absorb most new money, and the same funds would face the heaviest redemption pressure in a drawdown. Secondary-market spreads have stayed narrow, but liquidity has not been tested against a sustained outflow cycle.

Analysts caution that quarterly filings are a lagging picture. They disclose positions as of a single date and exclude holdings below reporting thresholds, so the adviser share is likely understated rather than overstated.

BitcoinsInvestments.com contacted the largest issuers for comment. None disputed the direction of the flows, and two declined to discuss holder composition.