Term
Stock index
A single number that summarizes the prices of a group of companies, so you can see how “the market” did without checking each stock. S&P 500, Nasdaq 100 and Mexico's IPC are indexes.
In pesos: You cannot buy an index directly; you buy a fund or ETF that copies it.
Where to go deeper
4/4 5 min Read Why the S&P 500 goes up or down What the S&P 500 actually measures, the four forces that move it, and why the daily number is mostly noise.Related assets
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Educational content only: not financial, investment or tax advice. The numbers are examples to understand the idea, not a forecast or a recommendation.