THE FINTECH BUILDER · SYNTHETIC LEARNING LAB

Parkinson Volatility

Change intraday range while keeping endpoint prices fixed.

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Keyboard: Tab to a control; native arrow keys change sliders. Alt + Right steps, Alt + Left goes back. Reduced-motion Play advances one state only.

  1. 1. Validate bracketed prices
  2. 2. Log high/low range
  3. 3. Square and divide by 4 ln 2
  4. 4. Average same-session contributions

Calculated history

Calculated stateValues from the current input prefix, not a decorative trace.
● Selected experiment┄ Canonical parameters / same cutoff

Result and diagnostics

v=A mean(ln(H/L)²)/(4 ln(2))

Calculation trace

Exact current output (JSON)


Input audit
Only the shown information prefix is supplied to the calculation. Synthetic fixture; no live market data or fitted performance claim.
Exact input supplied to the reference engine