China Stock Margin Debt Falls 31.33B Yuan as Shanghai, Shenzhen Balances Shrink

The decline is notable because it comes from both venues in roughly equal measure, suggesting broad de-risking rather than a single-market event. Margin balances are a proxy for leveraged conviction, so a contraction of this size signals that borrowed money is leaving the market faster than it is returning. Whether this is a one-day flush or the start of a sustained unwind is the open question; the follow-through in the coming sessions will indicate if it is tactical or structural.