Gross margin represents the difference between revenue and the direct costs of producing goods or services, typically expressed as a percentage of revenue. In trading contexts, gross margin indicates profitability before accounting for operating expenses, interest, and taxes. This metric is crucial for evaluating business efficiency and pricing power across different market conditions.

Gross margin analysis helps traders assess company fundamentals, industry trends, and competitive positioning. Companies with higher gross margins typically have stronger pricing power, better cost control, or superior operational efficiency. Margin expansion or contraction often signals changing business conditions that can affect stock prices and sector performance.

Real-world example: A semiconductor company reports gross margins improving from 45% to 52% due to higher chip prices and improved manufacturing efficiency, causing the stock to rally 15% as investors recognize improved profitability trends.