At its heart, value investing is simple: it's the art of buying stocks for less than they are truly worth. Imagine finding a $10 bill on sale for $5. You'd buy it instantly. That's the basic idea behind value investing. Instead of chasing market trends or hot tips, value investors act like careful shoppers, looking for bargains in the stock market.

This strategy hinges on two core concepts. The first is intrinsic value, which is an estimate of a company's true, underlying worth, separate from its fluctuating stock price. The second is the margin of safety, which is the difference between that intrinsic value and the price you actually pay. The bigger the margin of safety, the less risk you take on.

Value investing isn't a new fad. Its foundations were laid in the 1930s by an economist and investor named Benjamin Graham. After losing heavily in the stock market crash of 1929, Graham developed a more disciplined, risk-averse approach to investing. He detailed his philosophy in two classic books, Security Analysis and The Intelligent Investor.

Graham's most famous student is Warren Buffett, who took his mentor's principles and became one of the most successful investors in history. Buffett adapted Graham's ideas, shifting the focus from just buying cheap, mediocre companies to investing in wonderful companies at a fair price. He championed the idea of holding these high-quality businesses for the long term.

Buffett proved that Graham's core concepts were not just a way to avoid losses, but a powerful engine for building wealth over time.

Value investing is often contrasted with its counterpart, growth investing. While value investors hunt for bargains, growth investors look for companies poised for rapid expansion, even if their stocks seem expensive based on current earnings. A value investor might buy a stable, profitable railroad company that's temporarily out of favor. A growth investor might buy a young tech company with little profit but a revolutionary new product.

Neither strategy is inherently better than the other; they are simply different ways of looking at the market. Value investing is often seen as a more conservative approach focused on preserving capital and generating steady returns.

Patience is a prerequisite for value investing. This strategy does not promise quick riches. It can take months, or even years, for an undervalued stock's price to rise to its intrinsic value. Market sentiment can be irrational for long periods.

Because of this, a long-term investment horizon is critical. Value investors don't try to time the market's daily swings. They buy stakes in good businesses and are prepared to hold them for many years, letting the value compound over time. The goal is to let the business's fundamental quality, not market noise, drive your returns.

Time to see what you've learned about the fundamentals of value investing.

Value investing is a powerful philosophy built on logic, discipline, and a business-like approach to the stock market. By focusing on what a company is actually worth, you can tune out the noise and make smarter, more confident decisions.