Auto-derived from IWM session history · updated nightly
On Fridays, Normal Variation sessions are the most common at 46.8%. Watch for a moderate range expansion past IB but capped at 2× IB.
IB breaks 94.7% of the time — only 5.3% of sessions stay range-bound. Both sides break 18.1% (Neutral days).
Average session range is 3.1 pts. The middle 68% of sessions runs 1.3 → 4.9 — anything outside is an outlier day.
Gap up days test prior session high 67.0% of the time. Gap down days test prior low 71.5%.
When the IB VPOC sits in the upper half, IB high breaks 62.1% of the time. Lower half: IB low breaks 61.8% of the time.
50.0% of sessions close green. Average signed move is -0.02%, with a typical absolute move of ±0.84%.
94.8% of sessions break either the overnight high or low. The OVN high is tested 63.1% of the time, OVN low 60.0%.
How wide a typical day is, end to end
| Measure | Value |
|---|---|
Typical Half of sessions come in under this | 2.73 pts |
Normal band The middle 68% of sessions | 1.30 → 4.87 pts |
Unusual above A session range past this is an outlier day | 4.87 pts |
The first hour's high-to-low spread
| Measure | Value |
|---|---|
Typical Half of sessions come in under this | 1.69 pts |
Normal band The middle 68% of sessions | 0.8253 → 2.87 pts |
Unusual above A first hour past this is an outlier day | 2.87 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.