An option chain lists every strike for one expiry, with calls (CE) on one side, puts (PE) on the other and the strike prices in the middle.
The columns
- LTP: the last traded price (premium) of that option.
- OI (open interest): how many contracts are open right now. High OI at a strike means many traders have positions there.
- Change in OI: how much OI rose or fell today. Rising call OI above the price is often read as resistance; rising put OI below the price as support.
- Volume: contracts traded today.
- IV: implied volatility, the movement the option price assumes (see the IV guide).
- Delta, gamma, theta, vega: the Greeks, which describe how the option's price reacts (see the Greeks guide).
In the money and out of the money
A call is in the money when the strike is below the current price; a put when the strike is above it. These rows are usually shaded. At-the-money options have the most time value and are the most actively traded.