VOLUME & MONEY FLOW
Volume ROC
How much trading activity has changed, in percent.
spec id: vroclength (default 14)
What does Volume ROC measure?
How much trading activity has changed, in percent. Big positive readings mean a volume spike relative to a set number of candles ago.
How is Volume ROC calculated?
Take today's volume, subtract the volume from 14 candles ago, divide by that old volume, and multiply by 100.
Written by reading the engine’s real computation, not a textbook — where the two differ, the page describes what actually runs.
How do I use Volume ROC in a bot?
In the builder, add an indicator of type vroc (parameters: length, default 14). Its value becomes an operand you can compare in any entry or exit rule. The engine grades the whole rule honestly: real fills, no look-ahead, half the history held back.
Related indicators
- VWAPA volume-weighted fair price: the average price actually paid, with busy candles counting for more than quiet ones.
- Volume zone oscIs volume flowing with the up candles or the down candles?
- Williams A/DA running accumulation line that measures the ground buyers actually gained or gave up each candle.
- Accum/dist lineA running tally of buying versus selling pressure.
Or browse all 158 indicators in the full library.