What Is a Financial Market?
Every time you hear "the market was up today" on the news, there's an actual, physical-and-digital system behind that sentence — and understanding what a financial market really does is the key to understanding literally everything else in this course, from stock prices to bond yields to IPOs.
Markets as matchmakers
Strip away the jargon, and a financial market is simply a matchmaking service. On one side are people and companies who have money and want it to grow — investors. On the other side are people and companies who need money now to do something productive with it — a business that wants to expand, a government that wants to build infrastructure, a homeowner who wants a mortgage. A financial market is any system, physical or digital, that connects these two sides, allowing capital to move from those who have a surplus of it to those who have a productive use for it, typically in exchange for some kind of return.
The stock market is the most famous example, but it's far from the only one: bond markets match governments and companies that want to borrow with investors willing to lend; foreign exchange markets match people who need one currency with people who hold another; even a peer-to-peer lending app is a tiny financial market, matching a borrower with a lender.
Why markets exist
Financial markets exist to solve a coordination problem, similar in spirit to the one money itself solves (see Lesson 1.1). Companies routinely need large sums of capital — to build factories, hire staff, develop products — far more than they could realistically borrow from a single bank or save up from their own profits. Meanwhile, millions of individuals and institutions have savings they'd like to grow over time, but have no direct way of finding a trustworthy business that needs their money and will pay them fairly for the use of it.
A financial market solves both problems at once. It gives companies a place to raise large amounts of capital from thousands of investors simultaneously, and it gives investors a standardized, relatively liquid, and (in regulated markets) transparent way to put their money to work and earn a return, while being able to exit their investment by selling it to someone else later. Without markets, both sides would be stuck: companies undercapitalized, savers with no efficient way to invest.
Primary vs secondary markets
This distinction trips up almost everyone the first time they meet it, so it's worth being precise. A primary market is where a security (a stock, bond, etc.) is created and sold for the very first time, with the money going directly to the company or government issuing it. The most well-known example is an IPO (initial public offering), where a company sells brand-new shares to investors and receives that cash directly, to use for growth, debt repayment, or other business purposes.
A secondary market is everywhere those same securities get bought and sold afterward, among investors, with no new money going to the original company at all. When you buy a share of a company on a stock exchange on an ordinary Tuesday, you are almost certainly buying it from another investor who already owned it — not from the company itself. The company already received its money, once, back at the IPO. Every trade after that is just investors trading the security among themselves.
SGX, NYSE, NASDAQ: what they actually do
The Singapore Exchange (SGX), the New York Stock Exchange (NYSE), and the NASDAQ are all examples of secondary markets — more precisely, stock exchanges, organizations that provide the infrastructure, rules, and technology for buyers and sellers to trade shares of publicly listed companies efficiently and transparently. They don't own the companies listed on them, and they don't set share prices themselves — prices emerge from the orders that real buyers and sellers place (more on this in the next lesson). What an exchange actually provides is: a trustworthy, regulated venue where trades are matched almost instantly; listing standards that companies must meet to be traded there (financial disclosure requirements, minimum size, governance rules); and market data that lets everyone see prices in real time. SGX is Singapore's national exchange and lists companies like DBS, Singtel, and a large number of REITs (real estate investment trusts). NYSE and NASDAQ are the two largest U.S. exchanges — NYSE traditionally home to many older, industrial-era companies, NASDAQ historically associated with technology companies like Apple and Microsoft, though that distinction has blurred considerably over time.
When you buy Apple stock on the NASDAQ, does Apple get that money?
Reveal Answer
No. Unless you are participating directly in a brand-new share issuance, buying Apple stock on the NASDAQ is a secondary-market transaction: your money goes to whichever investor previously owned that share and is now selling it to you, not to Apple the company. Apple only received money directly from investors once — during its IPO in 1980, when it sold newly created shares in the primary market. Every single Apple share trade since then, including the one you'd make today, is just investors exchanging existing shares among themselves. NASDAQ's role is to provide the venue and technology that matches your buy order with someone else's sell order — it doesn't take a side in the trade, and neither does Apple.