Bitcoin ETF trimmed as Harvard adds ETHA in Q4 filing

Harvard Management Company trims IBIT 21% and opens first $86.8M ETHA position

Harvard Management Company (HMC) reduced its exposure to BlackRock’s iShares Bitcoin Trust (IBIT) by roughly 21% while establishing its first position in the iShares Ethereum Trust (ETHA), valued at about $86.8 million. The new ETH allocation corresponds to approximately 3.87 million ETHA shares, marking HMC’s initial publicly disclosed Ethereum ETF stake, as reported by The Block (https://www.theblock.co/post/389996/harvard-bitcoin-ether-etf-holdings/?utm_source=openai).

HMC’s latest 13F filing reflects a notable repositioning within BlackRock-linked crypto products, reducing bitcoin exposure and adding ether exposure, according to Yahoo Finance (https://finance.yahoo.com/news/assessing-blackrock-blk-valuation-harvard-031309484.html). Both funds are issued by BlackRock under the iShares brand, providing spot-market exposure via exchange-traded structures.

Why Harvard may be rebalancing between Bitcoin ETF and Ethereum ETF

The move appears consistent with measured diversification inside crypto, spreading risk across two distinct network assets and market structures. Rebalancing after a volatile stretch can bring exposures back to policy ranges without signaling wholesale conviction changes.

A further possibility involves market-structure dynamics. Andy Constan’s view, summarized by CoinMarketCap Academy, points to the unwinding of trades that took advantage of bitcoin treasury companies trading at premiums to holdings (https://coinmarketcap.com/academy/article/harvard-cuts-bitcoin-holdings-by-21percent-opens-dollar87m-ethereum-position?utm_source=openai). That interpretation would align a partial IBIT trim with a tactical rather than ideological shift.

Some academics remain cautious about concentrated crypto bets. “Any underdiversified position in something as speculative as crypto … does not make sense for HMC,” said Avanidhar Subrahmanyam, Professor of Finance at UCLA, in comments reported by The Harvard Crimson (https://www.thecrimson.com/article/2026/2/16/hmc-q4-2025-portfolio/?utm_source=openai).

For peer endowments, HMC’s allocation signals that crypto exposure may evolve from single-asset concentration to multi-asset coverage. Such steps can be read as risk management and thesis expansion, not necessarily as a directional market call.

For crypto markets, the rotation underscores growing acceptance of issuer-scale spot ETFs as institutional access points. Flows between bitcoin and ether vehicles may increasingly reflect portfolio construction choices alongside valuation and liquidity conditions.

At the time of this writing, Ethereum traded near $1,971.84 with elevated volatility based on Yahoo Scout data (https://finance.yahoo.com/). That backdrop helps contextualize why institutional rebalancing may occur without implying forward price views.

IBIT vs ETHA: structures, liquidity, tracking, and 13F caveats

How IBIT and ETHA exposures differ for endowments

IBIT offers spot exposure to bitcoin via an exchange-traded fund structure, while ETHA provides spot exposure to ether. Both aim to track their underlying assets through issuer-managed creation and redemption.

Liquidity and tracking can differ as trading volumes, spreads, and primary market activity vary across tickers. For endowments, these vehicles provide operational simplicity relative to direct custody, with NAV-based transparency typical of U.S.-listed ETFs.

What 13F filings reveal, with timing and scope limits

Form 13F disclosures are backward-looking snapshots of long U.S.-listed equity and ETF holdings, released on a delay. They do not capture derivatives, short positions, cash, or private assets, so true exposure may differ.

FAQ about Harvard Management Company

How large is Harvard’s new Ethereum ETF position and which specific fund did it buy?

About $86.8 million in BlackRock’s iShares Ethereum Trust (ETHA), or roughly 3.87 million shares, as reported by The Block.

Is this shift a diversification play or a change in conviction between Bitcoin and Ethereum?

The repositioning aligns with diversification and rebalancing, with one interpretation tied to market-structure unwinds noted by CoinMarketCap Academy.