The number in your brokerage app is the price of the last completed trade. It’s not what you’d pay right now, and it’s certainly not what the company is worth. Three different numbers, one display, and most investing confusion lives in that gap. Number one: the last transaction # Nobody sets a stock price. There’s no committee. Price emerges from the order book — a live list of bids (what buyers will pay) and asks (what sellers will accept), updating in milliseconds.
Every asset gets ranked on one line, safest to riskiest. That line is a lie of compression. Risk has four separate dimensions, and the one that wrecks you is always the one you weren’t measuring. The single-line ranking hides more than it shows # You know the ladder. Cash at the bottom. Then government bonds, then investment-grade corporates, then broad index funds, then individual stocks, then options and venture capital at the top. It’s a useful picture and it’s roughly right about ordering.
Price-to-book compares a company’s market price to what it owns on paper. The catch is that roughly 92% of what modern companies are worth never appears on paper — so for most of the market, the ratio measures the wrong thing entirely. The mechanics, briefly # P/B = market price per share ÷ book value per share, where book value per share is (total assets − total debts) ÷ shares outstanding.
Two companies both “worth” $500 million can cost wildly different amounts to buy. Market cap prices the equity. Enterprise value prices the business — and the gap between them is where the debt is hiding. The number everyone quotes measures one thing # Market capitalisation is share price times shares outstanding. Ten million shares at $50 gives you a $500 million market cap. It’s fast, it’s public, and it’s the basis for how index funds like the S&P 500 weight their holdings — bigger companies, bigger influence.
For most goods, raising the price reduces demand. For luxury goods it can raise demand — that’s the Veblen effect, and brands have used it for a century. Then they found the edge of it, and the industry shed 50 million customers in two years. The rule luxury operated under # Thorstein Veblen described the exception to ordinary supply and demand: for some goods, a higher price increases desirability, because the price itself signals rarity and quality. Conspicuous consumption requires the price to be visible and high.
Earnings per share looks like a fact about a business. It’s a fraction, and companies have spent over a trillion dollars a year buying back shares — which raises EPS without earning an extra cent. What the number actually says # EPS = (net income − preferred dividends) ÷ shares outstanding. It answers how much profit each common share earns. Preferred shareholders get paid first at a fixed rate, so their dividends come out before the division.
Enterprise value below market cap means a company holds more cash than debt. Everyone reads that as strength. Sometimes it is. Sometimes it’s a business that has run out of things worth funding, and the balance sheet is telling you so. The formula, and the signal it produces # Enterprise value is market cap plus total debt minus cash — what it would genuinely cost to acquire the business, since a buyer inherits the debt and receives the cash.
The trading floor is the image everyone has and it’s the wrong one. Goldman Sachs turned over $53.5 billion in 2024, and the fastest-growing, most durable slice of it came from the least cinematic activity available: charging rich people an annual fee to look after their money. Four engines, and the boring one is winning # M&A advice. When one company buys another, someone has to value the target, structure the deal so it doesn’t detonate on tax or regulatory grounds, and hold the client’s hand through months of negotiation. The fee is a percentage of deal size that shrinks as deals grow — 5–10% on something under $10M, roughly 0.5–1.5% on a multi-billion deal. One percent of $1B is still $10M for a single transaction.
One committee sets the price of borrowing money overnight, and every other price in finance arranges itself around it. Understand that single number and most market commentary stops sounding like weather reporting. An interest rate is a price # Strip the mystique: borrow $100, repay $105, and the $5 is the price you paid for having the money early. That’s all a rate is. Banks, companies and governments all pay a version of it, and the Federal Reserve sets the one at the bottom of the stack — the rate banks charge each other for overnight loans.
In February 2020 the market was at record highs. A month later it had fallen 34% in weeks, the fastest crash in history. Twenty-two million Americans lost their jobs in a fortnight — and the market then rose 30% in two months. Nothing was broken. The two things were never measuring the same thing. One looks backward, one looks forward # Economic data reports what already happened. Unemployment figures, GDP, inflation — all describe a period that has finished.
Fundamental, technical and macro analysis aren’t three competing answers to one question. They’re answers to three different questions — what is this worth, where is the price going, and what is the whole economy doing — and most arguments about which is “right” are people answering different questions at each other. What is it worth: fundamental analysis # The long-term owner’s lens. You’re not buying a ticker, you’re buying a share of a business, which means the job is working out what the business is worth and comparing that to what it costs today.
Every intrinsic value calculation you will ever do is wrong. That’s not a criticism of the method — it’s the reason the method includes a margin of safety. The discount isn’t caution. It’s an admission built into the arithmetic. What the number is trying to be # Buffett’s definition is unglamorous and precise: intrinsic value is the present value of the cash that can be taken out of a business during its remaining life. Three ideas packed into one sentence — all the future cash, when each piece of it arrives, and what that’s worth in today’s money.
