RE: AZ option7 Dec 2020 13:30
From investopedia.....
Strike Price
The strike price determines whether an option should be exercised. It is the price that a trader expects the stock to be above or below by the expiration date. If a trader is betting that International Business Machine Corp. (IBM) will rise in the future, they might buy a call for a specific month and a particular strike price. For example, a trader is betting that IBM's stock will rise above $150 by the middle of January. They may then buy a January $150 call.
Contracts
Contracts represent the number of options a trader may be looking to buy. One contract is equal to 100 shares of the underlying stock. Using the previous example, a trader decides to buy five call contracts. Now the trader would own 5 January $150 calls. If the stock rises above $150 by the expiration date, the trader would have the option to exercise or buy 500 shares of IBM’s stock at $150, regardless of the current stock price. If the stock is worth less than $150, the options will expire worthless, and the trader would lose the entire amount spent to buy the options, also known as the premium.