Professional investors offloaded approximately 52,000 bitcoin worth of spot ETF exposure during the first quarter of 2026, according to SEC 13F filings released May 15. The liquidation, valued at roughly $3.1 billion at quarter-end pricing, marks the sharpest institutional retreat from bitcoin vehicles since the ETF structure launched in January 2024. Over the same period, hedge fund positions on Microsoft diverged sharply—several managers added eight-figure dollar amounts while others trimmed or exited entirely.
The bitcoin ETF drawdown cuts across both legacy allocators and crypto-native funds. Filings show net selling across the ten largest spot bitcoin ETF issuers, with BlackRock's IBIT and Fidelity's FBTC bearing the heaviest outflows. The 52,000 BTC figure represents a 14% decline in reported institutional holdings quarter-over-quarter. Spot bitcoin traded in a $58,000 to $74,000 range during Q1 before closing March at $61,200—down 22% from December's $78,500 print. No single filing disclosed a position increase exceeding 500 BTC.
On Microsoft, the 13F data reveals no consensus. Managers who added exposure cited the enterprise AI contract pipeline and Azure's 37% year-over-year revenue growth through March. Managers who reduced or exited pointed to valuation compression risk after shares traded above 32x forward earnings for most of the quarter. Microsoft closed Q1 at $412 per share, flat from year-end but down from the January peak of $438. One filing showed a new $47 million position; another disclosed a complete exit from a prior $112 million stake. The stock now represents between 2.8% and 6.1% of reported assets across the five largest filers who disclosed changes.
The simultaneous moves suggest professional money is rotating toward clarity. Bitcoin ETF holders faced sustained spot price pressure and regulatory uncertainty around staking features, while Microsoft shareholders confronted margin questions tied to AI infrastructure capital expenditure. Both assets entered Q1 as consensus long positions in institutional portfolios. By quarter-end, neither was. The rotation out of bitcoin exposure is the more decisive shift—exits outnumbered additions by a 9-to-1 ratio in disclosed filings. Microsoft saw balanced activity but with position sizes varying by 40% or more among comparable fund strategies.
Allocators should monitor two near-term inflection points. First, whether Q2 filings due August 14 show continued bitcoin ETF liquidation or a stabilization in holdings as spot prices test $65,000 support in May. Second, whether Microsoft's June 12 earnings call clarifies AI monetization timelines and capex guidance for fiscal 2027. Any upward revision to Azure's margin profile could reverse hedge fund skepticism. Any delay in Copilot enterprise adoption metrics will likely trigger further trimming.
The 13F data confirms what April flow reports suggested: institutional conviction on both assets weakened faster than retail sentiment. Bitcoin ETF outflows preceded the spot selloff by three weeks. Microsoft position reductions began before the March earnings miss. Professional money moved early and moved size.