Mid-price: related pages

Bid-offer spread
The difference between the prices at which shares can be bought and sold.
Bid price
The highest price at which a buyer is willing to buy a particular security. The buyer may be a market maker or an ordinary investor.
Offer price
The lowest price at which a seller is willing to sell a particular security. This is therefore the price at which the security can be bought.
Agency cross
A trade that a broker matches directly between two of its clients, bypassing the market.
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