In finance, a put or put option is a Derivative (finance) instrument in financial markets that gives the holder (i.e. the purchaser of the put option) the right to sell an asset (the underlying), at a specified price (the strike), by (or at) a specified date (the expiry or maturity) to the writer (i.e. seller) of the put.
Bibliography
“Put Option.” 2022. Wikipedia, October. https://en.wikipedia.org/w/index.php?title=Put_option&oldid=1117825854.