What Is "The Market"? The Dow, the S&P 500, and the Index Bet You Didn't Choose

In this episode of Money Lessons, Andy tackles a phrase we lean on without ever defining it: "the market."

He explains what a stock market index is, where the Dow, the S&P 500, and the Nasdaq-100 come from, and how each one measures the market differently — the Dow by share price, the others by company size.

He unpacks the Dow's hidden divisor and the outsized power of a denominator, shows how a handful of giant companies can carry an entire index, and explains why SpaceX's arrival on the Nasdaq means millions of index-fund holders are about to own a stock they never picked. The lesson: an index is a set of choices, and a fund that tracks one hands you all of them.