TradingAI

Market Intelligence Platform

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How to Read an Option Chain

Calls vs puts

A call gains when the index rises above strike + premium; a put gains when it falls below strike − premium. Every row of a chain pairs one CE and one PE at the same strike.

Open interest (OI)

Outstanding contracts. High OI at a strike means market makers cluster there — those strikes often act as support (put OI) or resistance (call OI). Rising OI with rising price = long buildup; rising OI with falling price = short buildup.

Volume vs OI

Volume is today's activity; OI is total open position. A volume spike at a strike flags fresh positioning — TradingAI watches this for support/resistance shifts.

Implied volatility (IV)

The market's expected move priced into options. High IV inflates premiums (good for sellers, expensive for buyers). Our VIX panel tracks this regime.

A practical read

1) Find max call OI → likely resistance. 2) Find max put OI → likely support. 3) Check PCR for positioning skew. 4) Confirm with price vs VWAP before trading.