The Q1 2026 13F filing season, with deadlines hitting in mid-May 2026, reveals a broad institutional reshuffling of crypto ETF positions. Sovereign wealth funds are accumulating Bitcoin exposure. University endowments are retreating. Wall Street banks and trading firms are rotating capital from B...
"These numbers are a snapshot of a single moment. For a firm like ours, the net exposure after hedging can look completely different from what the filing shows." — Jane Street spokesperson, as cited by multiple outlets covering Q1 2026 13F disclosures
The Q1 2026 13F filing season, with deadlines hitting in mid-May 2026, reveals a broad institutional reshuffling of crypto ETF positions. Sovereign wealth funds are accumulating Bitcoin exposure. University endowments are retreating. Wall Street banks and trading firms are rotating capital from Bitcoin toward Ethereum. The filings, which capture positions as of March 31, 2026, show the crypto ETF market has matured into a $115 billion asset class with distinct institutional segments pursuing divergent strategies.
U.S. spot Bitcoin ETFs now hold approximately $102 billion in combined assets under management and roughly 1.3 million BTC — about 6.5% of Bitcoin's circulating supply. Ethereum spot ETFs have reached $13.6 billion in total AUM. The Q1 filings show that the investor base is no longer monolithic: sovereign capital is buying dips, banks are hedging with options, endowments are trimming, and trading firms are repositioning toward yield-bearing Ethereum products.
Abu Dhabi's Mubadala Investment Company reported 14,721,917 shares of BlackRock's iShares Bitcoin Trust (IBIT) valued at $565.6 million as of March 31, 2026. That marks a 16% increase from the 12,702,323 shares held at year-end 2025. Mubadala has added to its IBIT position every quarter since Q4 2024, when it first disclosed exposure worth $436 million.
A related entity, Al Warda Investments — tied to the Abu Dhabi Investment Council and operating under the Mubadala umbrella — held 8.2 million IBIT shares worth approximately $408 million at year-end 2025. Combined, the two Abu Dhabi vehicles held more than $1 billion in IBIT as of December 31, 2025. The Q1 2026 Al Warda filing data was not yet available at time of publication.
The pattern is notable for its consistency. While other institutional categories show volatile quarter-to-quarter positioning, Mubadala's accumulation has proceeded in a straight line through both Bitcoin's Q4 2025 rally and Q1 2026 pullback toward $80,000. This suggests an allocation mandate rather than a tactical trade.
Harvard Management Company, which oversees the university's $50+ billion endowment, cut its IBIT position by 43% in Q1 2026 to 3,044,612 shares worth approximately $117 million. The endowment had already trimmed 21% in Q4 2025. More notably, Harvard fully exited its $86.8 million position in BlackRock's iShares Ethereum Trust (ETHA), a stake it had built only one quarter earlier.
IBIT is no longer Harvard's largest disclosed public-equity holding. TSMC, Alphabet, Microsoft, and the SPDR Gold Trust now rank ahead of it. The remaining $117 million Bitcoin position represents a fraction of the endowment's total portfolio.
Dartmouth College's endowment moved in the opposite direction, disclosing $14 million in total crypto ETF exposure across three products: approximately $7.7 million in BlackRock's IBIT, $3.5 million in the Grayscale Ethereum Staking ETF, and $3.3 million in the Bitwise Solana Staking ETF. The Solana position is one of the earliest examples of a university endowment allocating to an altcoin staking product through a regulated ETF wrapper.
The Harvard-Dartmouth contrast illustrates the lack of consensus among institutional allocators. Harvard appears to be de-risking from a position that was, in hindsight, established near Bitcoin's August 2025 all-time high of approximately $115,000. Dartmouth, with a $9 billion endowment roughly one-fifth the size of Harvard's, is diversifying into yield-generating staking ETFs.
Jane Street's Q1 2026 filing showed a 71% reduction in IBIT holdings — from 20.3 million shares worth approximately $790 million at year-end 2025 to 5.9 million shares worth $225 million. The firm simultaneously cut its Fidelity Bitcoin ETF position by approximately 60%.
In the same quarter, Jane Street nearly doubled its position in BlackRock's ETHA and added to Fidelity's Ethereum Fund (FETH), with the two Ether ETF additions totaling approximately $82 million. The firm also boosted its Galaxy Digital stake from roughly 17,000 shares to 1.5 million shares, while cutting its Strategy (formerly MicroStrategy) position from 968,000 shares to approximately 210,000 shares — reducing that holding from $146 million to $27 million.
However, 13F filings capture only the long side of a portfolio. For a firm like Jane Street, which operates as a market maker, the net directional exposure after accounting for hedges, short positions, and derivative overlays may differ substantially from reported holdings. The filing does not reveal whether these moves represent a directional view or a structural repositioning of hedging books.
Wells Fargo's Q1 2026 filing showed a 63.5% increase in BlackRock ETHA holdings — from approximately 672,600 shares in Q4 2025 to 1.1 million shares. The bank's Bitwise Ethereum ETF (ETHW) stake rose 37% to 257,000 shares. Total Ether ETF exposure reached approximately $21.5 million.
On the Bitcoin side, Wells Fargo showed a mixed picture. Its IBIT position — still the bank's largest crypto holding at roughly $250 million — was slightly reduced, while positions in the Bitwise Bitcoin ETF and Grayscale Bitcoin Mini Trust were increased. The bank simultaneously cut its Galaxy Digital position from 2.5 million shares to 78,600, while raising its Strategy stake to 726,000 shares from 322,700.
The Royal Bank of Canada expanded its IBIT holdings while increasing put and call option positions as hedges. Barclays disclosed a layered IBIT position including approximately 4.46 million spot shares alongside substantial put and call option positions. These structures suggest banks are building exposure for client-facing products and advisory services while hedging directional risk through options overlays.
Goldman Sachs disclosed approximately $2.36 billion in total digital asset exposure, including roughly $1.1 billion in Bitcoin ETFs, approximately $1 billion in Ethereum ETFs, $153 million in XRP ETFs, and $108 million in Solana ETFs.
Beyond its role as a holder, Goldman filed with the SEC on April 14, 2026, for the "Goldman Sachs Bitcoin Premium Income ETF." The product would hold shares of existing Bitcoin ETFs and sell covered call options to generate income, targeting institutional investors seeking yield rather than directional exposure. Fortune analyst Nate Geraci described the filing as "boomer candy" — a reference to the covered-call income strategy popular among traditional wealth-management clients.
The Goldman filing marks a transition from passive crypto ETF holding to active product issuance. If approved, it would join BlackRock's ETHB and the Grayscale Ethereum Staking ETF as yield-generating crypto ETF structures, further blurring the line between traditional fixed-income products and digital asset vehicles.
The BTC-to-ETH rotation visible in multiple Q1 filings coincides with the emergence of staking-enabled Ethereum ETFs. Two U.S. ETFs currently offer staking: Grayscale's ETHE (live since October 2025, $1.8 billion AUM, 2.5% expense ratio) and BlackRock's ETHB (launched March 12, 2026, 0.25% fee with temporary 0.12% waiver).
BlackRock's ETHB launched with $107 million in seed capital, $15.5 million in first-day trading volume, and approximately 80% of its ETH already staked on-chain through Coinbase as custodian and staking provider. The fund stakes 70-95% of its holdings and distributes roughly 82% of gross staking rewards monthly. At the Ethereum network's current 3.1-3.3% gross APR, ETHB investors receive approximately 1.9-2.6% net annual yield after fees.
Fidelity, Franklin Templeton, Invesco, 21Shares, and VanEck have pending staking amendments for their Ethereum ETFs. If approved, the staking-enabled share of Ethereum ETF AUM would expand substantially from the current $1.9 billion (ETHB plus Grayscale staking) across the $13.6 billion market.
The yield component changes the institutional calculus. Bitcoin ETFs are pure directional bets on price appreciation. Staking ETFs offer an embedded yield, making Ethereum ETFs structurally more comparable to dividend-paying equities or bond proxies — a category far more familiar to traditional asset allocators.
U.S. spot Bitcoin ETFs absorbed $2.44 billion in net inflows during April 2026, nearly doubling the $1.32 billion that entered in March and marking the strongest single month for BTC fund flows in 2026. BlackRock's IBIT alone accounts for $66.9 billion in AUM, representing 66% of the U.S. spot Bitcoin ETF market.
Ethereum ETF flows have been less consistent. U.S. spot Ethereum ETFs recorded over $250 million in cumulative inflows during three consecutive trading sessions in early May, followed by a $104 million single-day outflow on May 7 — led by Fidelity's FETH ($62.3 million out) and BlackRock's ETHA ($26.3 million out).
BlackRock's ETHA leads the Ethereum ETF market with over $6.5 billion in AUM. Fidelity's FETH holds more than $4 billion. Grayscale's ETHE has declined from over $9 billion pre-conversion to under $4 billion, a pattern that mirrors its Bitcoin trust's post-conversion outflow trajectory.
The net picture: Bitcoin ETF flows remain positive and accelerating at the aggregate level, even as specific institutional holders trim. Ethereum ETF flows are positive on a month-to-month basis but volatile at the daily level, suggesting the investor base is less conviction-driven and more tactical.
Sovereign capital is the most consistent Bitcoin accumulator. Mubadala has added IBIT shares every quarter since Q4 2024, reaching $566 million. This pattern suggests mandate-driven allocation rather than tactical positioning.
University endowments are split. Harvard cut Bitcoin ETF exposure 43% and fully exited Ethereum. Dartmouth expanded into Bitcoin, Ethereum staking, and Solana staking ETFs. No endowment consensus exists.
The BTC-to-ETH rotation is real but may be overstated. Jane Street's 71% IBIT cut and Wells Fargo's 63.5% ETHA increase are headline numbers, but 13F data does not capture hedges, short positions, or derivative overlays. Net directional exposure may differ.
Staking ETFs are changing the institutional pitch. The 1.9-2.6% net yield from products like ETHB makes Ethereum ETFs comparable to dividend stocks or short-duration bonds, expanding the potential buyer base beyond crypto-native allocators.
Goldman Sachs is transitioning from holder to issuer. Its proposed Bitcoin Premium Income ETF would apply traditional covered-call strategies to crypto, signaling that Wall Street views crypto ETFs as a permanent product category rather than a speculative experiment.
Total crypto ETF AUM now exceeds $115 billion. At this scale, quarterly 13F reshuffling by individual institutions — even those managing hundreds of billions — represents tactical positioning within an established asset class, not existential directional signals.
The Q1 2026 13F filings confirm that crypto ETFs have crossed the threshold from experimental allocation to institutional infrastructure. The $115 billion combined AUM across Bitcoin and Ethereum products places crypto ETFs on par with major commodity ETF categories.
The divergence in positioning — sovereign funds accumulating, endowments retreating, banks hedging, trading firms rotating — is itself a sign of market maturation. Monolithic institutional sentiment (all in or all out) is characteristic of nascent asset classes. Disaggregated positioning across investor types, time horizons, and strategies is characteristic of established ones.
The staking ETF development adds a structural dimension that pure-price Bitcoin ETFs lack. If pending staking amendments from five additional issuers are approved, the Ethereum ETF market could undergo a rapid AUM expansion driven by yield-seeking allocators who would never consider a non-yielding crypto product. Whether this flow would come at Bitcoin ETFs' expense or represent net new capital is the open question for the second half of 2026.