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A Few Related Terms

Bid Price
Ask Price
Limit Order
Market Order

All or None (AON)
Term category: Stocks
In 10 words or less: An order that specifies you only want to complete the trade if all the shares are available.

Definition: An All or None (AON) is an order that tells your broker that if you can't get all of the shares, to cancel the order. Sometimes when there's a lot of demand or too much supply for a stock, it's hard to buy or sell exactly the number of shares of stock that you want. For example, if you want to buy 1000 shares and only 500 shares are available, you would only get 500 shares. An AON trade prevents this from happening.

StockJargon Advice: If you are placing a large order and don't want to worry about having your order only partially filled, an AON order will take care of this. But, remember, if the shares aren't available, you won't get any of them. So it's a tradeoff you need to consider.

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