Skip to content
All library documents

Using Volume Ratio and Turnover to Interpret Stock Activity

Article BigQuant

Summary

This article proposes reading a stock’s volume ratio together with its turnover rate to assess changes in trading activity. It assigns interpretations to several combinations: turnover above 5% with a volume ratio of 2–3 as an early activity signal; turnover of 5–10% with a ratio of 3–5 as stronger momentum; and turnover above 10% with a ratio above 5 as an extreme condition. For that last case, it says price location matters, interpreting activity near long-term lows as possible accumulation and activity after a large rise as possible distribution.

The article also flags turnover above 5% with a volume ratio below 2 as potentially weak participation despite visible trading. These thresholds are presented as rules of thumb, not as tested results: no sample, backtest, or measured predictive accuracy is supplied. The article acknowledges that trading volume can be misleading and encourages restraint when signals are unclear, but offers no precise method for defining price location, managing positions, or validating the proposed readings.

Key ideas

  • The article combines volume ratio, a measure of relative trading activity, with turnover to interpret stock participation.
  • It treats moderate increases in both measures as possible early or strengthening momentum.
  • It interprets very high readings differently depending on whether price is near a long-term low or has already risen substantially.
  • High turnover with a low volume ratio is presented as a possible sign of fading participation.
  • The thresholds are heuristic claims without backtest evidence or detailed risk and exit rules.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.