Jane Street cuts BTC ETF 70%, adds $82M to ETH ETFs
Jane Street’s Q1 2026 13F filings show a sharp rotation in crypto ETF exposure. It cut its main Bitcoin ETF stake by about 71%: IBIT fell to ~5.9M shares (≈$225M) and FBTC was trimmed ~60%. At the same time, Jane Street rotated capital toward Ethereum ETFs, moving about $82M into ETH ETFs. It nearly doubled exposure via BlackRock’s ETHA and increased its position in Fidelity’s FETH.
The filings also show a ~78% reduction in its MSTR exposure and additional changes in crypto-related equities (including lower stakes in several miners). Importantly, analysts note that 13F only captures end-of-quarter long holdings and may miss derivatives, shorts, futures, swaps, and OTC hedges. This means the BTC ETF and ETH ETFs headline may be part of a broader delta-neutral hedging strategy rather than a direct directional bet.
For crypto traders, the actionable takeaway is positioning: visible buying toward ETH ETFs can add short-term support for ETH relative to BTC, but market impact may be muted because the true flow may be hedged.
Neutral
Jane Street’s Q1 2026 13F shows reduced BTC ETF exposure and increased ETH ETF exposure. That mix could be interpreted as slightly bearish for BTC (since visible holdings were cut) and supportive for ETH (because ETH ETFs received additional capital). However, both summaries stress a key limitation of 13F: it largely misses derivatives and risk-management legs (shorts, futures, swaps, OTC hedges). If the firm uses delta-neutral hedging between BTC and ETH, then the net price impact on BTC and ETH may be smaller than the headlines suggest.
Short-term, traders may react to the visible ETH ETFs build by tightening ETH/BTC relative bias. Long-term, this is less likely to be a clean “trend confirmation” because the true net spot demand could be hedged. Net effect on the price of the referenced cryptocurrencies is therefore likely neutral rather than one-sided.