Case: the dot-com bubble (2000)

The dot-com bubble is the textbook case of valuation disconnecting from reality — a direct illustration of why the Fundamental Analysis track insists on cash flows over stories.

What happened

In the late 1990s, internet companies attracted enormous investment on the promise of the web. Valuations detached from fundamentals: firms with no profits — sometimes no revenue — commanded huge prices, justified by metrics like "eyeballs" instead of earnings. In March 2000 the bubble burst. The tech-heavy index fell roughly 78% from its peak over the following two years, and a great many companies vanished entirely.

Lesson 1 — A great story is not a great investment

The internet genuinely was transformative — and most of the era's stocks still went to zero. A correct thesis about an industry says nothing about whether a specific company at a specific price is a good buy. Separate the two.

Lesson 2 — Valuation is the anchor

When a company has no earnings, traditional valuation cannot anchor the price, so it floats on sentiment — and sentiment reverses without warning. Demanding a defensible link between price and cash flow is exactly the discipline that protects you here.

Lesson 3 — The survivors do not redeem the strategy

A handful of dot-com firms became giants, which tempts a survivorship-biased lesson ("I would have held the winner"). In real time those winners were indistinguishable from the thousands that failed. Diversification, not hindsight conviction, is what survives a bubble.