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Best Bid and Offer - NBBO |
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A
term applying to the SEC requirement that brokers must guarantee customers
the best available ask price when they buy securities and the best
available bid price when they sell securities. |
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NBBO
is the bid and ask the average person will see. Daytraders usually
use Level 2 market maker screens to see ALL the bids and offers for
a particular stock.
The NBBO is updated throughout the day to show the highest and lowest
offers for a security amound all exchanges and market makers.
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