E Fund CSI 300 ETF (510310) Volume Surges Over 14x to Top 12B Yuan

A single-session volume spike of this magnitude in a flagship CSI 300 product is a liquidity event, not a directional signal — the late-session timing suggests large institutional repositioning or index-related flows rather than broad retail participation. It matters because 510310 is a core vehicle for onshore large-cap exposure, so outsized turnover there can feed into ETF creation/redemption activity and the underlying basket. Whether the elevated volume persists beyond this session or proves a one-off block trade is the open question.