The MadBrooks Professor

Growth vs Value Investing: Two Philosophies, One Market

Jun 18, 2026 · 9:11 AM CT · 8:01 · The MadBrooks Professor | Growth vs Value Investing | Two Philosophies, One Market | 6/18/2026

Core differences between growth and value investing. PEG vs P/B. When each style outperforms.

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Transcript

If you don't understand the difference between growth and value investing, you're playing poker without knowing what beats what.

Growth versus value. Two camps. Two religions, really. And like most religious debates, both sides are convinced they've found the only path to salvation while the other camp is headed straight to investment hell. The truth? They're both right, they're both wrong, and knowing when each one works is worth more than any hot stock tip you'll hear at a cocktail party.

Let's start with value investing because it came first. Benjamin Graham wrote the bible on this in 1934 with "Security Analysis." The core idea? Find companies trading for less than they're actually worth. You're looking for a dollar selling for fifty cents. Warren Buffett built his empire on this approach, though he evolved it significantly from pure Graham doctrine. Classic value investors hunt for low price-to-book ratios, low price-to-earnings multiples, high dividend yields. They want companies that are boring, unloved, maybe temporarily beaten up, but fundamentally sound. Think of a solid industrial company that's out of favor because everyone's chasing the next shiny tech thing.

The price-to-book ratio is value investing's bread and butter. It compares a company's market value to its book value, which is the accounting value of all its assets minus liabilities. A P/B under one means you're theoretically buying assets for less than they're worth on paper. During the financial crisis, solid banks traded below book value because everyone assumed those book values were fiction. Some were. But if you picked the survivors, you made a fortune. JPMorgan Chase traded around 0.7 times book value in early 2009. Five years later, it was back above book value and the stock had tripled.

Value investors love margin of safety. Graham's concept. You don't just want fair value. You want to buy so far below fair value that even if you're somewhat wrong about the company, you still make money. It's defensive. Conservative. The investing equivalent of wearing both a belt and suspenders.

Now growth investing. Completely different animal. Growth investors don't care much what you pay today. They care about tomorrow, next year, five years out. They're buying earnings growth, revenue growth, market expansion. They'll pay what looks like an obscene price today because they believe the company will grow into that valuation and far beyond it. Philip Fisher pioneered this approach in the 1950s with his book "Common Stocks and Uncommon Profits." He wanted companies with superior management, proprietary products, and runway for expansion.

The PEG ratio is where growth investors live. That's price-to-earnings divided by the growth rate. A company trading at 30 times earnings looks expensive until you realize it's growing earnings at 40 percent annually. That gives you a PEG of 0.75. Under one is traditionally considered attractive for growth stocks. Peter Lynch popularized this metric. He'd pay up for growth but wanted to see the growth rate justify the multiple.

Amazon is the poster child here. In 2005, Amazon traded at a P/E ratio around 55. Insanely expensive by value metrics. It had a price-to-book around 8. Value investors wouldn't touch it. But the company was growing revenue at 25 to 30 percent annually. Growth investors understood that Amazon was building infrastructure for future dominance. If you bought in 2005 and held for ten years, you made over 1,500 percent. The value investors sitting on the sidelines with their low P/E industrials made decent returns but nothing close.

Here's where it gets interesting. These styles cycle. They take turns outperforming, and understanding why matters enormously. Value tends to outperform in rising interest rate environments and during early economic recoveries. Why? When rates rise, future cash flows get discounted more heavily. Growth stocks promising big profits five years out look less attractive when you're discounting those profits at 6 percent instead of 2 percent. Meanwhile, value stocks with current earnings and hard assets hold up better.

The period from 2000 to 2007 was fantastic for value. After the tech bubble burst, investors wanted earnings, dividends, tangible assets. Energy companies, financials, industrials crushed it. The Russell 1000 Value Index outperformed the Russell 1000 Growth Index by about 4 percentage points annually during this stretch.

Growth dominates in different conditions. Low interest rate environments favor growth because future earnings aren't discounted as heavily. Technological disruption cycles favor growth because you're betting on companies creating new markets. The 2010 to 2020 period was a growth investor's paradise. Interest rates stayed near zero after the financial crisis. Technology companies were legitimately disrupting entire industries. Netflix destroyed Blockbuster and damaged traditional cable. Apple created the smartphone market and captured most of the profits. Growth crushed value during this decade. We're talking about 5 to 6 percentage points of annual outperformance.

Then something fascinating happened in late 2020 and into 2021. Suddenly value roared back. Energy stocks, financials, industrials surged while high-flying growth stocks started stumbling. Why? Inflation emerged. Interest rates began moving up. The easy money era looked like it was ending. Value's moment had returned. But by 2023, the picture got muddier again as technology, particularly artificial intelligence stocks, came roaring back.

Here's what most people get wrong. They think you have to pick a side. Growth or value. One philosophy for life. That's nonsense. The smart approach is understanding both and knowing which environment you're in. You don't have to make big tactical shifts every month, but understanding the macro backdrop helps. High inflation and rising rates? Probably tilt toward value. Technological revolution and low rates? Growth gets more attractive.

There's also a middle path. Buffett actually exemplified this. He started as a pure Graham value investor buying cigar butts, companies so cheap you could get one last puff. But Charlie Munger pushed him toward what they called "growth at a reasonable price." Buying wonderful companies at fair prices instead of fair companies at wonderful prices. When Buffett bought Coca-Cola in 1988, it wasn't cheap by traditional value metrics. But it was a dominant brand with international growth potential trading at a reasonable multiple. That's the synthesis.

The dangerous trap is style drift at the wrong time. Value investors who held on too long to newspapers and retail stocks as the internet destroyed their businesses. Growth investors who paid any price during the late 1990s bubble and got slaughtered. Discipline matters, but so does recognition when the world has changed.

One more thing. Individual investors have an advantage here. You're not locked into a style box by your fund mandate. The portfolio manager running a large-cap value fund has to stay in that lane even when growth is screaming. You don't. You can be pragmatic. Own some of both. Tilt based on your view of the environment. Stay diversified across styles.

The metrics matter but they're not religion. A low P/E isn't automatically good. It might be low because the company is dying. A high P/E isn't automatically bad. It might be high because the company is compounding at rates that justify it. Context matters. Industry matters. Management matters. The numbers are the starting point, not the ending point.

See you Friday. Growth and value aren't opposing teams, they're different tools for different jobs, and the best investors know when to use which wrench.

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AI generated. Not financial advice.