Expiry Date

An expiry date is the last day you can exercise (use) an options contract—the deadline to buy or sell the underlying stock at the agreed price. After that date, the contract becomes worthless and disappears. You'll encounter this with options (contracts that give you the right, but not the obligation, to buy or sell a stock at a set price). It matters because time decay works against you: as expiry approaches, your option loses value even if the stock price stays the same. For example, if you buy a call option on TechCorp expiring on March 15th, you must act by that date or lose the contract entirely. Think of it like a coupon with an expiration date—wait too long and it's gone.