VROC
成交量变动率
Stock TechnicalP2VolumeApplies to: US stocks
Definition
The speed of volume expansion/contraction.
Formula
VROC=(V−V n periods ago)/V n periods ago×100
How to read it
A sudden spike = volume burst (breakout/reversal); sustained weakness = thin trading.
InputsvolumeOutputvolume
Data source: V. Public knowledge, not investment advice.
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Reference metadata — public, well-known indicator definitions. Not investment advice.