Up/Down Volume Ratio (10-bar, log)Volume

Timeframe M1 · unit ratio

What it measures

Sums the volume of bars that closed higher than the previous bar (up-volume) and bars that closed lower (down-volume) over the last 10 bars, then takes the natural log of the ratio. This centers the measure at zero and gives symmetric scaling.

How Janira reads it (bullish vs bearish)

Positive values mean up-volume exceeds down-volume over 10 bars. Negative values mean down-volume dominates. A value of +0.7 (ratio ~2:1) means twice as much volume traded on up-bars as on down-bars. A value of -0.7 means the reverse.

In plain language

Count all the trading that happened on 'up' candles vs 'down' candles over the last ten minutes. If more activity occurred when the market was going up, this number is positive. Twice as much up-volume as down-volume gives a value of about +0.7.

Scenarios

Log ratio above +0.5: up-volume is meaningfully outweighing down-volume over recent bars - buying activity is dominant.
Log ratio below -0.5: down-volume dominates; sellers are active and absorbing more than buyers.
Log ratio near zero: up and down volume are balanced, consistent with price rotation or consolidation.
Log ratio flipping sharply (e.g., from +0.6 to -0.5): the balance of participation just shifted, a potential turning point in short-term flow.

More volume indicators

OBV Slope (10-bar, normalized)Chaikin Money Flow (20-bar)Money Flow Index (14-bar, centred)Force Index (13-bar EMA, normalized)VWAP Distance (%)Accumulation/Distribution Slope (10-bar, normalized)Ease of Movement (14-bar EMA, normalized)Volume Oscillator (5 vs 20 SMA, %)

Janira computes Up/Down Volume Ratio (10-bar, log) deterministically from live price action, the same way for every reading - no discretion, no hidden weighting. This page explains the method; it is not a live reading and not advice.