option and database in trading

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.

Options are a type of contract that gives the buyer the right to buy or sell a security at a specified price at some point in the future. An option holder is essentially paying a premium for the right to buy or sell the security within a certain time frame.