Turnover Surges and Amihud Illiquidity

How SurgeFlow identifies abnormal volume and separates liquid information shocks from illiquid squeezes.

Category: Technical

Turnover surge

A turnover surge compares the latest full-day trading value with its own recent history. The primary abnormal-volume ratio is xYest = latest turnover / previous-session turnover; moving-average multiples compare latest turnover with 10/50/200-day turnover averages. It is designed to flag unusual attention, accumulation, liquidation, or event-driven repricing.

Illiquidity context

The same volume multiple means different things in a mega-cap and a microcap. Amihud illiquidity is |return| divided by turnover value, so a higher percentile means the stock is more illiquid: price moves more per dollar traded. This separates efficient information flow from fragile liquidity.

Agent role

Technical analysis treats surges as confirmation or warning, not as a standalone buy signal.