What is marginal demand for a stock?

The concept of "marginal demand for a stock" refers to the market price determined by the lowest price buyers are willing to pay and the highest price sellers are willing to accept. This price is constantly fluctuating based on the immediate supply and demand dynamics for the stock. For instance, if there's more selling pressure than buying pressure, the price will drop until it attracts enough buyers to match the supply, and vice versa 1.