What it means
A market bubble occurs when the price of something, such as shares in a company, property, or even digital tokens, rises rapidly to levels that make no sense based on fundamental value. At the start, a new trend or technology catches people's attention.
Early buyers make easy profits, which attracts their friends, colleagues, and the media. FOMO, or fear of missing out, takes over.
People buy simply because prices are going up, expecting to sell to someone else later for an even higher price. This cycle disconnects the price from reality.
For non-finance managers, understanding bubbles is crucial because they distort business decisions. During a bubble, companies can raise capital easily even with poor business models, and competitors might make reckless investments because everyone seems to be getting rich.
Managers might feel pressured to chase fleeting market trends rather than focus on steady, profitable growth. When the bubble bursts, the sudden shift in market sentiment causes funding to dry up instantly.
In practice, spotting a bubble in real time is notoriously difficult because participants always believe this time is different. However, certain warning signs include soaring valuations with zero profits, heavy media hype, and everyday people quitting their jobs to trade full-time.
Recognizing these patterns helps managers protect their cash reserves, avoid overpaying for acquisitions, and maintain a focus on long-term operational health while others lose their heads.
In practice
Real-world examples.
Example
During the 2021 tech boom, an online pet food startup with 50,000 pounds in annual revenue raised 20 million pounds at a 200 million pound valuation, purely because investors loved pet delivery apps.
Example
A regional warehouse company saw its share price jump 400 percent in six months simply by adding the word blockchain to its corporate name, despite having zero blockchain projects or products.
Example
A commercial property firm bought suburban office blocks at record prices of 500 pounds per square foot, assuming remote work trends would reverse, only for values to plunge 60 percent two years later.
Think of it
“A market bubble is like a game of musical chairs. The music keeps playing, and everyone dances faster and feels richer, but when the music suddenly stops, there are nowhere near enough chairs for everyone.
Formula
Calculation
Intrinsic Value = Annual Free Cash Flow / (Discount Rate - Growth Rate). In a bubble, market price vastly exceeds this calculated value. For example, if a company's true intrinsic value is 10 pounds per share based on actual cash flows, but market hype pushes the price to 150 pounds, the bubble premium is 140 pounds per share.Case study
Seen in the real world.
Consider Apex Logistics, a fictional freight forwarding firm that decided to ride a wave of market hype around artificial intelligence in 2023. Apex added a basic automated chatbot to its customer service portal and rebranded itself as an AI-driven logistics platform. Within weeks, retail investors and venture funds pushed the company share price from 5 pounds to 85 pounds. The leadership team, caught up in the excitement, used the inflated share price to acquire three struggling competitor firms by issuing new shares rather than paying cash. They also borrowed heavily to fund a massive marketing campaign. However, the chatbot offered no unique technological advantage, and revenues did not increase. By late 2024, market sentiment shifted as investors realized the lack of substance. The share price crashed back down to 4 pounds. Apex was left saddled with poorly integrated acquisitions, high debt repayments, and angry shareholders, narrowly avoiding insolvency through emergency restructuring.
Watch out
Common mistakes.
- Assuming that rising prices always mean a company is well-managed and financially healthy.
- Believing that you will be clever enough to sell right before the bubble bursts.
- Ignoring fundamental financial metrics like profit and cash flow in favour of hype and user growth.
Questions
People also ask.
What causes a market bubble to start?
A bubble usually starts with a genuine innovation or economic shift that excites people, such as the internet or a new technology, which attracts early speculative money.
How can a business manager avoid bubble-related risks?
Focus on core profitability, maintain strong cash reserves, avoid taking on debt to fund speculative projects, and do not rely on inflated share prices for long-term planning.
Is a market crash the same thing as a bubble?
No, a bubble is the period of over-inflation where prices disconnect from reality, while a crash is the sudden, painful popping of that bubble when prices collapse.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%Related