Jane Street Group, one of Wall Street’s most influential quantitative trading firms, significantly reshaped its crypto-related portfolio in the first quarter of 2026. New regulatory filings show the firm reduced several major bitcoin-linked positions while increasing its exposure to Ethereum exchange-traded funds and selected crypto equities. The shift comes during a period of heightened digital-asset volatility and changing institutional sentiment toward crypto markets.
Bitcoin Holdings Were Cut Back Across Multiple Positions
According to Jane Street’s latest 13F filing, the firm sharply reduced its stake in BlackRock’s spot bitcoin ETF, the iShares Bitcoin Trust. Its position fell by roughly 71% from the prior quarter to about 5.9 million shares, with a reported market value of approximately $225 million at the end of March. The company also trimmed its holding in Fidelity’s Wise Origin Bitcoin Fund by about 60%, leaving it with close to 2 million shares worth around $115 million.
These reductions marked a notable reversal from the aggressive bitcoin-related positioning the firm had built late last year. The filing suggests that Jane Street responded to a weaker first-quarter backdrop for bitcoin and the broader crypto market. During part of the quarter, bitcoin traded below $80,000, while digital assets more broadly faced sustained selling pressure.
The retrenchment extended beyond spot bitcoin ETFs. Jane Street also reduced its exposure to Strategy, cutting its stake from roughly 968,000 shares to around 210,000 shares. The reported value of that position dropped from approximately $146 million to about $27 million. That move stood out because the firm had previously expanded its Strategy holdings dramatically in the prior quarter.
In addition, the company reduced positions in several bitcoin mining-related stocks, including IREN, Cipher Mining, TeraWulf, and Core Scientific. Taken together, the filing paints a picture of broad-based moderation in bitcoin-centric exposure rather than a single-position rebalance.
Ethereum ETFs and Crypto Equities Saw Increased Allocation
While bitcoin-linked positions were cut, Jane Street moved the other way in Ethereum-related products. Its stake in BlackRock’s iShares Ethereum Trust nearly doubled during the quarter, and the firm also increased its position in Fidelity’s Ethereum fund. Combined, the additional purchases in those two Ethereum ETFs totaled about $82 million.
This reallocation suggests that Jane Street did not simply reduce crypto exposure across the board. Instead, it appears to have shifted capital within the sector, favoring a more diversified or selective approach. Ethereum products, in this case, gained a larger role in the firm’s reported U.S.-listed portfolio.
The firm also added to several crypto-related stocks. Its position in Riot Platforms increased from around 5 million shares to approximately 7.4 million shares, bringing the value of that holding to roughly $91 million. Jane Street also modestly increased its stake in Coinbase, another sign that its crypto repositioning was not purely defensive.
One of the most striking shifts came in Galaxy Digital. Jane Street boosted its holdings from roughly 17,000 shares to about 1.5 million shares. As a result, the reported value of the position surged from less than $400,000 to approximately $28 million. That substantial increase indicates a growing willingness to take exposure to crypto-financial infrastructure and services, even as direct bitcoin-related positions were cut.
What the Filing Signals About Institutional Positioning
The filing offers only a partial window into Jane Street’s full market exposure. A 13F report includes long positions in U.S.-listed equities and certain securities, but it does not capture derivatives, short positions, or much of the firm’s market-making activity. For a trading firm as complex as Jane Street, that limitation matters. The reported changes should therefore be interpreted as a view into one slice of the portfolio rather than a complete map of its crypto strategy.
Even with that caveat, the direction of travel is clear. Jane Street appears to have reduced concentrated bitcoin exposure while increasing positions tied to Ethereum and select crypto companies. That pattern may reflect a broader institutional trend toward more selective deployment of capital in digital assets, particularly in a market environment where investors are balancing long-term conviction with shorter-term volatility and risk management.
Rather than maintaining a straightforward directional bet on bitcoin alone, the firm’s first-quarter moves suggest a more nuanced positioning framework. Bitcoin ETFs remained part of the portfolio, but with a far smaller weighting than before. At the same time, Ethereum funds and crypto-linked equities gained importance, indicating a preference for diversification across different parts of the digital-asset ecosystem.
For market observers, the takeaway is not simply that Jane Street turned bearish on bitcoin. The filings point more toward rotation than retreat: trimming large bitcoin-linked holdings, scaling back some mining exposure, and redirecting capital toward Ethereum vehicles and companies tied to the broader crypto economy. In a market shaped by rapid sentiment changes and uneven performance across assets, that kind of rebalancing may become increasingly common among sophisticated institutional investors.