best ask
The lowest price at which competing market makers are currently offering to sell a security. A market order to buy is filled at the best ask, which increases and decreases continually in response to changes in supply and demand as buyers and sellers enter and exit the market. Compare to Ask; Best Bid; Bid. See national best bid and offer (NBBO).
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market order
away from the market
Electronic Communication Network (ECN)
take the offer
locked market
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prearranged trading
Chartered Institute of Public Finance and Accountancy
first in first out
accounting
price controls