1A General Idea
The typical question that most investors ask about the stock market is whether it is up or down on any given day. “How’s the Dow Jones?” or “What’s going on with the NASDAQ?”. Quite simply, these people are looking for the index’s performance number. An index is a helpful measure of activity on the stock market. Indexes give investors a general idea as to how trading went on a particular day and the overall health of the stock market. The exchanges where buying and selling occurs are also significant.