Stock prices is the market-determined valuation per share for a publicly traded company's equity, representing the cost at which a share can be bought or sold on an exchange. As a research concept, it constitutes a fundamental financial metric studied to understand its dynamic behavior, the diverse factors influencing its level and volatility—including corporate performance, market sentiment, macroeconomic conditions, and market efficiency—and its significance for financial analysis, capital allocation, and assessing market liquidity.