Institutional Bitcoin ETF Holdings Shift as Wall Street Trims, Sovereign Funds Add

Divergent Positioning Among Institutional Investors

Nine major Wall Street firms reduced their spot Bitcoin ETF exposure by approximately 68,000 BTC between September 2025 and June 2026, according to an analysis by Galaxy Research. This reduction exceeded the overall decline in institutional holdings, which dropped by 48,000 BTC during the same period. The shift indicates a significant change in ownership structure within the U.S. spot Bitcoin ETF market, with trading-heavy institutions moving away from the asset while other institutional groups increased their stakes.

SEC filings reveal that institutions reporting to the U.S. Securities and Exchange Commission owned approximately 355,000 BTC-equivalent in spot Bitcoin ETFs at the end of September 2025. By June 2026, these holdings had decreased to around 307,000 BTC, representing a 14% decline. While the nine major firms identified by Galaxy Research accounted for the bulk of the selling pressure, other reporting institutions collectively added 20,000 BTC to their portfolios.

Arbitrage Margins Drive Trading Firm Exits

The reduction in exposure by firms such as Goldman Sachs, Millennium Management, Brevan Howard, and Tudor Investment is attributed to shrinking profits from the cash-and-carry trade. This strategy involves buying spot exposure and selling Bitcoin futures to capture the price difference, or premium, between the two markets. As the arbitrage opportunity narrowed, these firms scaled back their positions.

Data cited in the analysis shows that the average annualized premium on front-month Bitcoin futures fell from 7.9% before the October 2025 peak to 4.8% in the 30 days ending October 21, 2026. This decline in premium reduced the yield available for traders employing the cash-and-carry strategy, prompting a reevaluation of risk and return profiles by major trading desks.

Sovereign Wealth Funds and Wealth Managers Increase Holdings

Contrasting with the exit of major trading firms, sovereign investment funds and wealth managers have increased their holdings in spot Bitcoin ETFs. Morgan Stanley’s wealth management business, along with Abu Dhabi’s Mubadala and the Abu Dhabi Investment Council, were identified as buyers during the period. These institutions appear to be positioning for long-term exposure rather than short-term arbitrage, contributing to the net outflow from the market being less severe than the gross selling volume suggests.

The divergence in behavior highlights a maturing market where different institutional strategies are responding to the same macroeconomic and market structure changes. While trading firms are sensitive to the immediate profitability of arbitrage spreads, wealth managers and sovereign funds are likely focusing on broader asset allocation and long-term value accumulation.

Market Context and Recent Accumulation

The period from the October 2025 peak to the July 2026 trough saw a significant correction in the digital asset market. Bitcoin ETF holdings declined by approximately 11% during this time, while the price of Bitcoin fell around 53%. Despite this drawdown, Bitcoin ETF funds have accumulated approximately 87,000 BTC since Bitcoin’s June low. This accumulation occurred while leveraged futures positions were shrinking, suggesting that the recent buying pressure may be coming from non-leveraged, spot-based institutional demand.

Galaxy Research notes that current comparisons rely on holdings reported through June 2026 and do not fully capture third-quarter positioning. The data provides a snapshot of institutional behavior during a period of high volatility and shifting arbitrage dynamics, but future filings will be required to determine if the trend of sovereign fund accumulation continues or if trading firms re-enter the market as premiums normalize.