Bid Price

What Does Bid Price Mean?
The price a buyer is willing to pay for a security. This is one part of the bid with the other being the bid size, which details the amount of shares the investor is willing to purchase at the bid price. The opposite of the bid is the ask price, which is the price a seller is looking to get for his or her shares.

Investopedia explains Bid Price
The use of bid and ask is a fundamental part of the market system, as it details the exact amount that you could buy or sell at any point in time. Remember that the current price is not the price for which you can purchase the security, but the price at which the shares last traded hands. If you want to get an idea of the price for which you can buy a security, you need to look at the bid and ask prices because they will often differ from the current price.