Options Glossary: A
A change to contract terms due to a corporate action (e.g., a merger or stock split). Depending on the corporate action, different contract terms (including strike price, deliverable, expiration date, multiplier etc.) could be adjusted. An adjusted option may cover more or less than the usual 100 shares. For example, after a 3-for-2 stock split, the adjusted option will represent 150 shares. For such options, the premium must be multiplied by a corresponding factor. Example: buying 1 call (covering 150 shares) at 4 would cost $600.
All-or-none order (AON)
An option that can be exercised at any time prior to its expiration date. See also European-style option.
A trading technique that involves the simultaneous purchase and sale of identical assets or equivalent assets in two different markets with the intent of profiting by the price discrepancy.
Ask / Ask price
The price at which a seller is offering to sell an option or a stock. See also Assignment.
Assigned (an exercise)
Received notification of an assignment by OCC. See also Assignment.
At-the-money / At-the-money option
A term that describes an option with a strike price that is equal to the current market price of the underlying stock.
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