OPTION DATABASE TRADING

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An option chain is a comprehensive list that shows you all available option contracts for a given stock. These are sorted by their expiration date, which is the last day you can trade or use the option, and strike price, which is the price at which you can buy (call) or sell (put) the stock.

Nifty option chain is considered to be the best advance warning system of sharp moves or break outs in the index.