SYNTHETIC DEMO DATA — not market data

JARVIS Intraday

Every second, in focus.

Volume, book, spread and volatility for NSE equities.

Date Instrument Bar width Volatility window

No intraday data yet

The viewer reads lake/bars/interval=1s/. Start the collector during a market session, or try the synthetic demo: python -m webapp.demo then python -m webapp --lake lake_demo.

Book at cursor

Hover the chart to see the best bid and ask at that second.

Realised volatility = sqrt(sum of squared 1-second log returns × 250), annualised. At 1-second sampling the bid-ask bounce inflates it relative to 1-minute estimates, so compare instruments with each other rather than with published figures.