415.1 143.9 424.8 457.0 Index numbers show changes in a measurement compared to the same measurement for a specific time period, called the base period. For the New York Stock Exchange Indexes, the base period is 1965.
Some indexes focus on one category of stock.
The composite index is the broadest measure of stock market performance. It includes 2,000 stocks. Analyzing the Indexes Create a line graph showing the trend in each category of stocks. List the years in the left column. Select the x-axis option.