Stock prices represent the value of a company's shares in the stock market. They fluctuate based on supply and demand, reflecting how investors perceive the company's future performance. When more people want to buy a stock than sell it, the price goes up, and vice versa. Factors influencing stock prices include company earnings, economic conditions, and market trends. Investors analyze these elements to make informed decisions about buying or selling stocks. Overall, stock prices serve as a barometer for a company's health and the broader economy.