The option chain lists every tradable strike for one symbol and expiry with the call side and the put side placed opposite each other on the same row. That layout is the whole point of the view: the asymmetry between what is written in calls and in puts at the same strike is readable in one pass, instead of being assembled by eye from two tables.
Each row carries last traded price and change, implied volatility, open interest and the change in open interest, traded volume, and the Greeks. The Greeks are computed at every strike rather than only at the money, which matters once you hold more than one leg: the exposure you carry is the sum across your strikes, and the gamma and vega profile of a wing is nothing like the body.
Read it outward from the at-the-money strike. The ATM row is where premium is highest and where the session's volatility is priced most honestly, because that is where the most contracts change hands. From there, the strikes carrying the largest open interest on either side are the ones writers have committed capital to defending, and the change in open interest beside them says whether that commitment is growing or being cut today.
Implied volatility is solved per contract from that contract's own traded price, not one number applied across the chain, with the forward from call-put parity on the at-the-money pair. Volatility is therefore not flat across strikes, and it is not supposed to be. Wings print higher implied volatility than the body on most symbols, which is the skew doing its job, not an error in the row.
Three traps recur in any chain:
Coverage is NIFTY, BANKNIFTY and the NSE F&O stock universe, on the current and further expiries, updated through the trading session. It is free and needs no account, and it is analytics rather than advice.
Start at the at-the-money strike and work outward in both directions. The ATM row carries the most premium and the most honest volatility pricing because it trades the most. The strikes with the largest open interest on either side show where writers have committed, and the change in OI beside them tells you whether that commitment is growing or being cut today.
It is the difference between the open interest at that strike now and at the previous session's close, so it measures how many contracts were added or closed today. Rising OI with rising premium at a strike is fresh writing or fresh buying arriving there. Early in the session the number is small against a large base, so it only becomes informative as the day develops.
Because IV is solved separately from each contract's own traded price, and the market does not price every strike off the same volatility. Out-of-the-money strikes usually print higher IV than the at-the-money strikes, which is the volatility skew and is normal. A single strike far out of line with its neighbours is more often a stale or thin quote than a real dislocation.
It often behaves that way in quiet markets, because the writers at that strike have a direct financial interest in the underlying not settling past it. It is a soft tendency rather than a rule and it fails on news. The more useful observation is a heavily written strike being unwound, since the people defending that level have just stopped defending it.
Yes. It reads the same NSE derivatives feed as the rest of the terminal, updates through the trading session, and needs no account or login. It covers index and stock options on the current and further expiries. Nothing on it is a recommendation to buy or sell any contract.
Analytics only. Not investment advice. Last updated .