Auto-derived from HYG session history · updated nightly
On Fridays, Normal Variation sessions are the most common at 46.0%. Watch for a moderate range expansion past IB but capped at 2× IB.
IB breaks 94.6% of the time — only 5.4% of sessions stay range-bound. Both sides break 19.5% (Neutral days).
Average session range is 0.3583 pts. The middle 68% of sessions runs 0.0356 → 0.6810 — anything outside is an outlier day.
Gap up days test prior session high 65.1% of the time. Gap down days test prior low 54.9%.
When the IB VPOC sits in the upper half, IB high breaks 66.7% of the time. Lower half: IB low breaks 60.9% of the time.
50.6% of sessions close green. Average signed move is +0.01%, with a typical absolute move of ±0.23%.
90.7% of sessions break either the overnight high or low. The OVN high is tested 58.7% of the time, OVN low 57.0%.
How wide a typical day is, end to end
| Measure | Value |
|---|---|
Typical Half of sessions come in under this | 0.2700 pts |
Normal band The middle 68% of sessions | 0.0356 → 0.6810 pts |
Unusual above A session range past this is an outlier day | 0.6810 pts |
The first hour's high-to-low spread
| Measure | Value |
|---|---|
Typical Half of sessions come in under this | 0.1550 pts |
Normal band The middle 68% of sessions | 0.0082 → 0.3938 pts |
Unusual above A first hour past this is an outlier day | 0.3938 pts |
Initial Balance break rates · day types by weekday · gap behavior · value-area touches · seasonality · the full set. Pro is $9/mo, cancellable anytime, and gives you every market on this list.