OPEN-SOURCE SCRIPT

NY VWAP 2std to 3std Probabilities + Exit Zones

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How it works:

Time buckets

Early: 10:30 – 12:00

Mid: 12:00 – 14:00

Late: 14:00 – 16:00

Bands

2σ band (s2up / s2dn) → this is where the “potential breakout” starts.

3σ band (s3up / s3dn) → this is the “target” for the 2→3σ move.

Counting logic

If during a given bucket, the price touches the 2σ band, it counts as a 2σ hit.

If after that, in the same bucket, the price also touches the 3σ band, it counts as a 3σ hit.

Probability calculation

\text{Probability 2→3σ} = \frac{\text{# of 3σ hits}}{\text{# of 2σ hits}} \times 100

For example, if in the late session the lower 2σ band is hit 10 times, and of those 10 times, 6 eventually hit the lower 3σ band, the script will show 60%.

Labels / lines

On the chart, Upper/Lower 2→3σ probabilities are displayed per bucket.

So yes: “Late Lower 2σ → 3σ: 60%” means: if price touches the lower 2σ band in the late session, historically, 60% of those touches continued to the 3σ band.

⚠ Important caveats:

These are historical probabilities, not predictions.

Small sample sizes in a bucket can make percentages unstable early in the day.

The script only counts session NY bars (0930–1600) and ignores pre-10:30 hits to reduce opening volatility noise.

면책사항

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