InsiderFlow › Guides › How the Stock Market Works, Explained Simply
The stock market is a marketplace for trading pieces of companies. Behind the scrolling numbers lies a mechanism simpler than it looks.
Stocks: fractions of company ownership. When you buy an Apple share you're not making an abstract bet: you own a (tiny) part of the business, its profits and its future.
Nobody "sets" prices: they emerge from the continuous meeting of buy and sell orders in the order book. When buyers are more aggressive than sellers the price rises, and vice versa. Prices reflect aggregate expectations about future profits, rates and risk — which is why they move on news before facts.
Pension funds and insurers (the slow giants), passive funds (buying whole indexes), hedge funds (aggressive strategies), market makers (providing liquidity), high-frequency algorithms (millions of micro-trades) and retail investors. Big institutional flows move prices: following them — through public 13F filings — is the principle behind apps like InsiderFlow.
Because companies reinvest profits and economies grow: the global stock market has gone through wars, crises and pandemics while setting new highs over decade-long horizons. In the short run, psychology rules: euphoria and panic alternate in cycles nobody can predict consistently.