Spread

Basics

Ce que ça veut dire

The gap between the bid (best buy price) and the ask (best sell price). It is a hidden cost you pay on every round trip.

If AAPL bid is $150.00 and ask is $150.05, the spread is $0.05. Buying and instantly selling 100 shares loses $5 to the spread alone.

Beginners ignore the spread on thin markets, then find a "profit" of $0.02 per share vanishes into a $0.10 spread the moment they try to exit.

Bid — The highest price someone is currently offering to pay for an asset. It is the price you g…
Ask — The lowest price a seller is currently willing to accept. It is the price you pay if you b…