What Is a Financial Market? And How Global Markets Work

A financial market is simply a place — physical or, almost always today, electronic — where buyers and sellers come together to trade financial instruments: stocks, currencies, commodities, bonds, and more. At its core, a market exists to solve one problem: matching someone who wants to buy something with someone who wants to sell it, at a price both agree on.

There isn't one single "the market" — there are many, each specializing in a different kind of instrument. Stock markets trade company shares, forex markets trade currencies, commodity markets trade raw materials, and bond markets trade government and corporate debt. These markets operate on their own exchanges and trading hours, but they aren't isolated from each other — money, news, and sentiment flow between them constantly, which is part of why a change in one market (interest rates, for example) tends to ripple into others.

Global markets are connected through time zones as much as through capital flows. As one region's markets close, another's opens — Asian markets open first, followed by European, then US markets — creating a rolling, near-continuous cycle of price discovery across the trading day. Forex in particular takes full advantage of this, trading almost 24 hours a day on weekdays as liquidity hands off from one financial center to the next.

Understanding markets as a connected global system, rather than a collection of separate arenas, is what makes later lessons on intermarket analysis and correlations make sense — a move in the US dollar doesn't just affect US markets, it ripples through commodities, emerging market currencies, and global stock indices within the same trading day.