Jane Street’s latest 13F points to a clear first-quarter rotation: lower reported exposure to Bitcoin ETFs, higher reported exposure to Ether ETFs. That matters because Jane Street is a major trading and liquidity firm, and this kind of shift suggests large players may be getting more selective inside crypto instead of treating the whole sector as one trade.

The bigger takeaway is what that says about market leadership. If institutional money is starting to separate Bitcoin from Ethereum in reported fund exposure, then crypto may be moving into a more two-track market, where flows are driven less by a blanket risk-on or risk-off call and more by asset-specific positioning. Just keep the filing in context: a 13F is only a quarter-end snapshot of long US-listed holdings, so it does not show the full book, short-term moves, or derivatives.