Options expiration date refers to the date on which an options contract expires and becomes invalid. On this date, the holder of the option must decide whether to exercise the option or let it expire worthless. If the option is not exercised by the expiration date, it will cease to exist and the holder will lose any potential profits that could have been gained by exercising the option.

The expiration date is a crucial aspect of options trading as it determines the timeframe within which the option can be exercised. It is important for traders to be aware of the expiration date of their options contracts and to plan their trading strategies accordingly. Different options contracts have different expiration dates, which can range from days to months or even years, depending on the type of option.

Overall, the expiration date is a key factor in options trading that investors must carefully consider in order to maximize their potential profits and minimize their risks.