The world’s largest sovereign wealth fund has just crossed a historic milestone in its exposure to Bitcoin — without holding a single satoshi directly. Behind this apparent paradox lies an investment strategy that speaks volumes about the institutional normalization of digital assets.
According to an analysis published by K33 Research, Norges Bank Investment Management (NBIM) has reached a record level of indirect Bitcoin exposure. And one company accounts for the bulk of that position: Strategy, the firm formerly known as MicroStrategy, led by Michael Saylor.
But that’s not all. The fund has also disclosed a quiet yet significant move into the world of Ethereum treasury companies, with a stake in Bitmine that deserves the full attention of institutional investors.
Strategy dominates at 86%: Norway’s proxy Bitcoin play
NBIM‘s indirect exposure to Bitcoin has reached a new all-time high, with 86% of that exposure coming from its stake in Strategy, the company co-founded by Michael Saylor whose entire treasury strategy is built around accumulating Bitcoin. This figure, calculated by K33 Research from the latest regulatory disclosures, illustrates just how thoroughly Strategy has become the go-to institutional vehicle for gaining Bitcoin exposure without holding it directly.
NBIM, which manages more than $1.9 trillion in assets on behalf of the Norwegian state, is prohibited from investing directly in cryptocurrencies under its mandate. It works around this constraint by holding shares in listed companies whose balance sheets are heavily correlated to Bitcoin. This approach — fully legal and compliant — effectively makes the fund one of the largest indirect institutional holders of BTC in the world.
The 86% concentration in Strategy does, however, raise a legitimate concentration risk concern: if Strategy’s share price diverges significantly from Bitcoin’s spot price — which can happen during periods of extreme volatility or premium compression — the fund’s effective exposure may deviate materially from the actual value of the underlying BTC.
Bitmine: $88 million on an Ethereum treasury play
NBIM has disclosed a new $88 million position in Bitmine, a company specializing in Ethereum treasury management. This move fits into a broader trend: following the success of the Strategy model applied to Bitcoin, a growing number of companies are replicating that playbook with ETH, betting on the long-term appreciation of the second-largest crypto asset by market cap.
Bitmine therefore gives NBIM indirect exposure to Ethereum, following the same logic the fund has applied with Strategy for Bitcoin. This dual positioning — Bitcoin via Strategy, Ethereum via Bitmine — suggests that the Norwegian fund is methodically diversifying its exposure across large-cap crypto assets, while staying firmly within the boundaries of its regulatory framework.
This kind of institutional move carries significant symbolic weight: when the most capitalized sovereign wealth fund on the planet begins building a multi-asset crypto exposure through listed companies, it structurally validates the asset class in the eyes of other institutional managers. The signal being sent to European pension funds, insurers, and family offices is one that is very hard to ignore.
Institutional normalization accelerating in 2025
NBIM‘s record Bitcoin exposure is no accident: it reflects a powerful structural trend that has been building since the approval of spot Bitcoin ETFs in the United States in early 2024. Major financial institutions are actively seeking regulatory-compatible pathways into digital assets, and listed crypto treasury companies have emerged as one of the most accessible solutions available today.
Strategy remains the defining case study: with more than 500,000 BTC on its balance sheet according to the latest available data, the company offers amplified Bitcoin exposure through its financial leverage. For a fund like NBIM, which invests across thousands of listed companies worldwide, this exposure often arrives almost automatically once Strategy is included in major stock market indices.
The question now is whether other sovereign wealth funds — particularly in Southeast Asia and the Middle East — will accelerate their own indirect exposure in response to this Norwegian precedent. The next round of regulatory disclosures will be watched closely by analysts at K33 Research and across the broader institutional crypto ecosystem.
