03 / market volatility / research demo
A surface that
changes its mind.
A Heston calibration lab that treats volatility as a regime with provenance, not a single number to admire after the fact.
σ²(t)
live / synthetic provenance · calibration interface shell
Research demonstration, not financial advice.
Service
FastAPI + WebSocket
The API keeps REST and WebSocket schemas stable while moving from Railway to a bounded Render Free demo service.
Open the shellFrontend
Small, awake
Static assets render first. The calibration request warms the service only after user intent, with bounded retry and honest failure states.
Vite / Cloudflare PagesProvenance
Two truths
Live and synthetic data stay visibly distinct so a graceful fallback never looks like a market feed.
live ≠ synthetic