Insights from ChartsWatcher
How to Tell If Stock Volume Is Rising During the Trading Day
To tell whether stock volume is rising, compare shares traded over equal time intervals—not just the running daily total. A cumulative total normally grows throughout the session even when trading is slowing down.
Compare like with like
Consider three completed five-minute candles:
| Candle | Shares traded | Running total for these candles |
|---|---|---|
| First | 120,000 | 120,000 |
| Second | 80,000 | 200,000 |
| Third | 40,000 | 240,000 |
The running total rises, but each candle contains less trading. Calling this “rising volume” would confuse accumulation with pace.
Reverse the candle sequence—40,000, 80,000, 120,000—and activity is increasing across those three equal intervals. That is a useful observation, but three candles alone do not establish a persistent trend.
Use three checks
- Recent pace: compare completed candles of the same length. Do not compare the first minute of an open five-minute candle with a completed five-minute candle.
- Recent baseline: compare current activity with a defined historical average. A relative-volume reading describes how unusual it is against that particular baseline.
- Session context: compare volume so far with a time-matched historical baseline, rather than a whole day's typical volume.
The second and third checks answer different questions. Our relative-volume comparison explains the distinction with numbers.
Check it in a scanner
ChartsWatcher's absolute-volume filter measures shares over a selected interval. Its relative-volume filter compares the current candle with the preceding 15 candles on the chosen timeframe.
For research, display both measurements and inspect the corresponding chart. Record the interval and timestamp so you can reproduce what you saw. A high relative-volume reading can result from an unusually small historical baseline, so the absolute amount matters too.
A volume-spike alert is another documented way to surface an activity event. Read its own definition before treating it as equivalent to an increasing sequence of candle volumes.
What rising volume does not tell you
More trading does not, by itself, tell you whether price will rise or fall. Every executed trade has a buyer and a seller; volume alone does not identify who is more aggressive or why the trade occurred.
Review price behaviour, the spread and available news separately. Volume helps describe participation. It is not a standalone instruction to enter a trade.