Q1 2026 13F filings, submitted to the SEC by May 15, reveal the widest institutional divergence in crypto ETF positioning since the products launched in January 2024. JPMorgan Chase increased its BlackRock iShares Bitcoin Trust (IBIT) stake by 174% to 8.3 million shares. Abu Dhabi's Mubadala rais...
"We characterise our Bitcoin allocation as a long-term diversification strategy. We expect both Bitcoin and gold to play structural roles in our portfolio as the global economy becomes increasingly digital." — ADIC (Mubadala subsidiary), Q1 2026 13F Commentary
Q1 2026 13F filings, submitted to the SEC by May 15, reveal the widest institutional divergence in crypto ETF positioning since the products launched in January 2024. JPMorgan Chase increased its BlackRock iShares Bitcoin Trust (IBIT) stake by 174% to 8.3 million shares. Abu Dhabi's Mubadala raised its IBIT position 16% to $566 million. At the opposite end, Harvard Management Company liquidated its entire $86.8 million Ethereum ETF position after one quarter and cut Bitcoin ETF holdings by 43%. Jane Street slashed IBIT exposure by 71%. Goldman Sachs exited XRP and Solana ETFs entirely while trimming Ethereum holdings 70%.
The filings cover holdings as of March 31, 2026 — a quarter in which Bitcoin fell over 22% and Ethereum declined roughly 29%. Institutional holders now account for approximately 38% of total U.S. Bitcoin ETF assets, up from 24% a year earlier but down nearly two percentage points from Q4 2025. Sixty-four percent of the 25 largest institutional holders increased positions in Q1, according to Bitcoinist data, but the aggregate institutional share contracted as several large allocators trimmed simultaneously. The data paints a market where conviction is deepening among committed holders and evaporating among experimenters.
The Q1 2026 13F season produced the following headline moves across crypto ETF positions:
Buyers:
| Institution | Product | Q4 2025 | Q1 2026 | Change | |---|---|---|---|---| | JPMorgan Chase | IBIT | 3.0M shares | 8.3M shares | +174% | | JPMorgan Chase | FBTC | ~0.3M shares | ~3.0M shares | +900% | | JPMorgan Chase | BITB | ~0.1M shares | ~0.55M shares | +450% | | Mubadala (Abu Dhabi) | IBIT | 12.7M shares ($487M) | 14.7M shares ($566M) | +16% | | Dartmouth College | Multiple | ~$15M | $14M (restructured) | Rotated into staking |
Sellers:
| Institution | Product | Q4 2025 | Q1 2026 | Change | |---|---|---|---|---| | Harvard (HMC) | IBIT | ~5.3M shares | 3.0M shares ($117M) | -43% | | Harvard (HMC) | ETHA | ~$86.8M | $0 | -100% | | Jane Street | IBIT | 20.3M shares ($1B+) | 5.9M shares ($225M) | -71% | | Jane Street | FBTC | ~5.0M shares | ~2.0M shares ($115M) | -60% | | Goldman Sachs | ETH ETFs | ~$380M | ~$114M | -70% | | Goldman Sachs | XRP ETFs | ~$154M | $0 | -100% | | Goldman Sachs | SOL ETFs | Held | $0 | -100% |
Note: 13F filings report quarter-end holdings. They do not reveal trade timing, execution prices, or internal rationale.
Harvard Management Company, which oversees $56.9 billion in endowment assets, entered Ethereum in Q4 2025 through BlackRock's iShares Ethereum Trust ETF (ETHA) with an approximately $86.8 million position. The purchase coincided with ETH trading near $3,400, already down from its August 2025 all-time high of $4,953.
By March 31, 2026, ETH had declined to roughly $2,350 — a further 29% drop year-to-date. The Q1 2026 filing shows zero ETHA shares remaining. The position was held for one quarter.
Harvard simultaneously reduced its IBIT holding by 43%, from approximately 5.3 million shares to 3,044,612 shares valued at $117 million. This marked the third consecutive quarter of declining crypto exposure. Harvard's crypto holdings peaked at approximately $442 million in Q3 2025.
The timing intersects with leadership transition. N.P. Narvekar, HMC's CEO since 2017 and architect of the endowment's crypto strategy launched in mid-2025, has notified the board of plans to retire, with a potential departure timeline around late 2027, according to the Wall Street Journal. The winding down of crypto positions may reflect pre-succession portfolio simplification rather than a macro thesis on digital assets.
Harvard's endowment returned 2.8% in fiscal year 2025, underperforming the median large endowment return of 7.6%, according to NACUBO data.
Mubadala Investment Company, Abu Dhabi's $302 billion sovereign wealth fund, moved in the opposite direction. Its Q1 2026 13F shows 14,721,917 IBIT shares valued at $565.6 million, up from 12,702,323 shares at year-end 2025 — a 16% increase.
Mubadala first disclosed IBIT holdings in late 2024 with an initial $436 million position. The fund has accumulated in every subsequent quarter, maintaining total exposure above the half-billion-dollar mark for three consecutive quarters. Combined with positions held through Al Warda Investments, Abu Dhabi's aggregate IBIT exposure crossed $1 billion by year-end 2025.
ADIC, the entity operating under Mubadala, has publicly characterized the allocation as a structural portfolio diversifier comparable to gold. Unlike Harvard's position, which represented approximately 0.8% of total endowment assets, Mubadala's Bitcoin allocation represents roughly 0.19% of total AUM — a smaller proportional bet with a longer time horizon.
The bank-level data reveals contrasting strategies that resist simple narratives about institutional sentiment.
JPMorgan Chase made the quarter's most aggressive accumulation. IBIT holdings surged 174% from 3 million to 8.3 million shares, adding roughly $162 million in value. FBTC holdings rose approximately 900%. BITB increased roughly 450%. The bank accumulated during a quarter when Bitcoin dropped over 22%, suggesting either client-driven positioning (JPMorgan holds these as a broker-dealer) or a deliberate countercyclical bet.
Goldman Sachs executed what its filing suggests is a selective reset rather than broad retreat. The bank exited XRP ETFs (previously ~$154 million) and Solana ETFs entirely. Ethereum ETF exposure fell 70% to $114 million. But Bitcoin ETF holdings remained at approximately $700 million despite a 10% reduction from Q4. Simultaneously, Goldman increased positions in Circle Internet Group (+249%), Galaxy Digital (+205%), Coinbase, Robinhood, and PayPal — suggesting a shift from token exposure to equity exposure within the crypto sector.
The distinction matters. Goldman reduced exposure to altcoin ETFs — products with thinner liquidity and weaker institutional infrastructure — while maintaining Bitcoin exposure and adding crypto equity positions. This is concentration, not exit.
Jane Street's 71% IBIT reduction — from 20.3 million shares ($1 billion+) to 5.9 million shares ($225 million) — was the quarter's largest single-entity reduction in dollar terms. FBTC holdings fell roughly 60% to $115 million.
Jane Street is primarily a market maker and liquidity provider, not a directional investor. Its 13F positions reflect hedging book residuals, inventory from authorized participant activity, and basis trade positioning as much as directional conviction. A Q4 2025 buildup followed by Q1 reduction is consistent with unwinding basis trades or reducing inventory after a period of heavy ETF issuance.
Jane Street also increased Ethereum ETF exposure, adding a combined $82 million across BlackRock and Fidelity Ethereum products. This cross-asset rotation may reflect relative value positioning rather than macro views on Bitcoin versus Ethereum.
The two Ivy League endowments moved in notably different directions.
Harvard ($56.9 billion AUM): Exited Ethereum entirely. Cut Bitcoin 43%. Third consecutive quarter of reduction. CEO retiring.
Dartmouth ($9 billion AUM): Restructured crypto exposure to $14 million across three assets. Shifted Ethereum holdings from Grayscale's Ethereum Mini Trust into Grayscale's Ethereum Staking ETF — capturing yield. Opened a new $3.3 million position in Bitwise's Solana Staking ETF with 304,803 shares. Maintained $7.7 million in IBIT.
Dartmouth's move toward staking ETFs — products that pass through validator yields to holders — represents a qualitative shift in how endowments approach digital assets. Rather than pure price exposure, Dartmouth is positioning for yield-bearing crypto products that more closely resemble the income-generating alternatives (real estate, private credit) that endowments traditionally favor.
The State of Wisconsin Investment Board (SWIB), which had been the first U.S. state pension fund to buy spot Bitcoin ETFs with over $340 million by early 2025, fully liquidated its 6.1 million IBIT shares by March 31, 2026. The exit predated the tariff-related market volatility of Q2.
The institutional reshuffling occurred against a backdrop of volatile aggregate ETF flows:
The aggregate flow data masks the institutional composition shift visible in 13F filings. While total ETF assets stabilized, the identity of holders changed. Market makers reduced inventory. Endowments split. Sovereign wealth funds accumulated. Banks diverged. Retail investors, who hold approximately 62% of total ETF assets, provided the majority of demand support during the Q1 drawdown.
Three structural dynamics emerge from the Q1 2026 filing season:
1. Altcoin ETF Fragility. Goldman's full exit from XRP and Solana ETFs, combined with Harvard's Ethereum exit, suggests that altcoin ETF products face an institutional credibility gap. Bitcoin ETFs benefit from $60 billion+ in total assets and deep liquidity. Ethereum ETFs hold roughly $8 billion. XRP and Solana products launched later with thinner institutional bases. The 13F data implies that institutional allocators treat Bitcoin ETFs as a distinct asset class and altcoin ETFs as experimental positions subject to rapid liquidation.
2. The Staking Yield Thesis. Dartmouth's rotation into staking ETFs signals a potential next phase of institutional crypto adoption — one driven by yield rather than price appreciation. As more ETF issuers incorporate staking rewards (Grayscale Ethereum Staking ETF, Bitwise Solana Staking ETF), the product economics shift from pure commodity exposure to something resembling a fixed-income hybrid. This aligns with how endowments evaluate alternatives — total return including income, not solely capital appreciation.
3. Sovereign vs. Endowment Time Horizons. Mubadala's seven-quarter accumulation streak versus Harvard's three-quarter liquidation cycle highlights a time-horizon mismatch. Sovereign wealth funds, with intergenerational mandates, can absorb multi-year drawdowns. University endowments, despite theoretically long horizons, face annual performance benchmarking, donor scrutiny, and leadership transitions that compress their effective investment horizon for volatile assets.
The Q1 2026 13F data does not support a simple narrative of institutional adoption or retreat. It supports a segmentation thesis: Bitcoin ETFs are consolidating as a core institutional allocation for committed holders, altcoin ETFs face existential questions about institutional demand depth, and yield-bearing staking products may define the next adoption vector. The capital that remains in crypto ETFs is increasingly concentrated among entities with longer time horizons, larger balance sheets, and explicit mandates for alternative asset diversification. The experimenters — one-quarter positions, small trial allocations, trend-following entries — are exiting. What remains is more structurally stable, if smaller in aggregate. The institutional crypto market is selecting for conviction.