Table of Contents

Valuation Ratio

The 30-Second Summary

What is a Valuation Ratio? A Plain English Definition

Imagine you're at the grocery store, standing in front of two boxes of cereal. Box A costs $3 and Box B costs $6. Which one is cheaper? The answer seems obvious, but it's a trick question. The price tag alone tells you very little. What if Box A is a tiny, single-serving container, and Box B is a giant, family-sized box? To make a smart decision, you wouldn't look at the price tag; you'd look at the price per ounce. That small number on the shelf sticker gives you context. It tells you how much you're paying for what you're actually getting. Valuation ratios are the “price per ounce” for stocks. A company's stock price, just like the cereal box's price tag, is meaningless in isolation. A $500 stock isn't necessarily more “expensive” than a $20 stock. The price simply tells you what one share costs. A valuation ratio connects that price to something tangible about the business itself—its profits, its sales, its assets. It standardizes the price, allowing you to make intelligent, apples-to-apples comparisons. It helps you answer the most fundamental question in investing: “For the price I'm paying, what am I actually getting in return?” By using these ratios, you shift your mindset from a speculator chasing price charts to a business owner analyzing the underlying value. It’s the first step in following one of the most famous investing maxims of all time.

“Price is what you pay. Value is what you get.” - Warren Buffett

Valuation ratios are the tools we use to bridge the gap between that price and that value. They are not a magic formula for finding winning stocks, but they are an indispensable compass for navigating the market and avoiding the most common mistake: paying too much.

Why It Matters to a Value Investor

For a value investor, valuation ratios aren't just useful; they are fundamental to the entire philosophy. The core of value_investing is to buy companies for less than their true underlying worth, or intrinsic_value. Valuation ratios are the primary tools for identifying potential discrepancies between the market price and that intrinsic value. Here's why they are so critical:

Ultimately, a value investor uses these ratios not as a definitive “buy” or “sell” signal, but as a starting point for deeper investigation. A low ratio prompts the question, “Why is this cheap? Is it a hidden gem or a business in trouble?” A high ratio prompts, “Why is this expensive? Is its future growth so certain that this price is justified, or is the market being too optimistic?”

A Deep Dive into Key Valuation Ratios

While there are dozens of ratios, a value investor can get a fantastic overview of a company's valuation by mastering just a handful. These are the workhorses of financial analysis.

The Price-to-Earnings (P/E) Ratio

The Price-to-Book (P/B) Ratio

The Price-to-Sales (P/S) Ratio

Enterprise Value to EBITDA (EV/EBITDA)

A Practical Example: Steady Brew vs. Flashy Tech

Let's analyze two fictional companies to see these ratios in action. Both stocks trade at $100 per share. Which one is “cheaper”?

Here's how they stack up:

Metric Steady Brew Coffee Co. Flashy Tech Inc.
Stock Price $100 $100
Earnings Per Share (EPS) $8.00 $1.00
Book Value Per Share $50.00 $10.00
Sales Per Share $40.00 $20.00
P/E Ratio 12.5 ($100 / $8) 100 ($100 / $1)
P/B Ratio 2.0 ($100 / $50) 10.0 ($100 / $10)
P/S Ratio 2.5 ($100 / $40) 5.0 ($100 / $20)

Analysis from a Value Investor's Perspective: Looking at the table, it's clear that the $100 stock price tells us nothing.

This example shows that valuation ratios don't give you the “answer.” They give you the right questions to ask. They frame the investment decision in terms of price versus value, which is the only way to invest successfully over the long term.

Advantages and Limitations

Strengths

Weaknesses & Common Pitfalls

1)
Book value is, in theory, what would be left over for shareholders if the company liquidated all its assets and paid off all its debts.
2)
Enterprise Value (EV) is a company's total market cap + debt - cash. EBITDA is Earnings Before Interest, Taxes, Depreciation, and Amortization.