Definition
#Measures whether elevated activity is persisting strongly enough in the 15-minute window to stand out against the broader 60-minute regime.
Formula & calculation
#First compute rolling intensity ratios:
Then compute acceleration:
Rolling Intensity Ratio(w) = ((Current Window Volume + Live Volume) / (Historical Mean Volume per Minute × Window Minutes)) × 100Then compute acceleration:
(15m Rolling Intensity Ratio / 60m Rolling Intensity Ratio) × 100Units & range
%. 100% means 15m intensity matches the 60m regime.
Interpretation
#A high reading here means the elevated activity has persisted long enough to show up in the 15-minute window: it's not just a single-minute spike. Use this alongside micro-acceleration: if micro is very high and trend-set is near 100%, you're seeing a fresh burst in an otherwise quiet session. If both are elevated, the activity has been building for at least 15 minutes. That's a regime shift, not noise.
Practical usage
#The confirmation layer for micro and macro acceleration. When all three are above threshold simultaneously, the market is active across every horizon from 5m to 60m: that's a regime, not a spike. Single-metric acceleration fires constantly; all three firing together is a high-quality setup.
Common mistakes
#Frequent interpretation traps and misuse patterns to avoid when applying this metric.
- Expecting it to react as quickly as micro acceleration. It's a slower, smoother signal by design.
- Using it without checking price movement in the same window. Activity can persist without directionality.