VOLUME & MONEY FLOW
Negative volume index
A line that only moves on QUIETER days — the days the old textbooks credit to well-informed money rather than the crowd.
spec id: nvi
What does Negative volume index measure?
A line that only moves on QUIETER days — the days the old textbooks credit to well-informed money rather than the crowd.
How is Negative volume index calculated?
Start at 1000. On any candle whose volume was LOWER than the previous candle's, move the line by that candle's percentage price change. On busier candles, leave it alone.
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 Negative volume index in a bot?
In the builder, add an indicator of type nvi. 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
- On-balance volumeA running tally of volume with a sign attached.
- Positive volume indexA line that only moves on BUSIER days — the days traditionally credited to the crowd rather than to well-informed money.
- Percentage volume oscMACD applied to VOLUME instead of price.
- Price-volume trendLike on-balance volume, but it counts the SIZE of each move rather than just its direction — so a 5% day counts far more than a 0.
Or browse all 158 indicators in the full library.