What serves as a benchmark that reflects the overall performance of a specific stock market segment? Option: Stock Market Index, Market Capitalization, Trading Volume, Price-to-Earnings Ratio (P/E Ratio)

What serves as a benchmark that reflects the overall performance of a specific stock market segment?

What is a stock market index?

How can a stock market index be used for benchmarking?

What does a sector-specific index represent?

What is the primary function of a stock market index?

How are stock market indices typically calculated?