Options Z-score

Structural OI-buildup reads for NIFTY & BANKNIFTY option chains — live during market hours, and replayable for any past session.

• Delta-weighted, z-scored OI change per strike — filtered against each strike's own trailing history, not a fixed threshold
• Live call/put classification updated continuously during market hours
• Scrub or auto-play back through any past session, strike by strike

This describes current option-chain structure only. It is not investment advice or a trading signal.