INVESTOR LETTER #103
Discount Rate
The discount rate is the return you expect from an investment. It helps convert money you may receive in the future into what it is worth today. The higher the return you demand, the less you're willing to pay today for the same future cash flows. In valuation, choosing the right discount rate is one of the most important—and most misunderstood—decisions.
INVESTOR NOTE
A business owner thinks in decades. A speculator thinks in minutes.
Money Today or Money Later?
Imagine your friend gives you two choices. You can receive ₹10,000 today or ₹10,000 exactly five years from now. Almost everyone would choose the money today. Why? Because money in your hand today can be invested, earn returns, and also comes with much less uncertainty. This simple idea is the foundation of the discount rate.
Why Future Money Is Worth Less
Imagine someone promises to pay you ₹1 lakh ten years from now. That sounds good, but ten years is a long time. Inflation reduces purchasing power, better investment opportunities may exist elsewhere, and there's always a chance something unexpected happens. Because of these factors, future money is worth less than the same amount today.
What Is a Discount Rate?
A discount rate is the annual return an investor expects before deciding to invest. It acts like a hurdle. If an investment cannot reasonably deliver at least this return, the investor may decide not to buy it.
Every Investor Has a Different Expectation
Imagine two investors are looking at the same business. One is happy earning 10% per year, while the other wants at least 15%. Since the second investor demands a higher return, they will only buy the business if it is available at a lower price. The business hasn't changed—only the investors' expectations have.
Higher Return Means Lower Purchase Price
Think of negotiating for a house. If you expect the house to appreciate significantly in the future, you may be willing to pay more today. But if you want a much higher return from your investment, you'll insist on buying it at a bigger discount. The same principle applies when valuing businesses.
Risk Influences the Discount Rate
Imagine lending money to your responsible older brother versus lending it to someone you've never met. You'd probably expect a much higher return from the stranger because the risk is greater. Similarly, uncertain businesses usually require a higher discount rate than stable, predictable businesses.
A Small Change Makes a Big Difference
One of the surprising things about valuation is that even a small change in the discount rate can significantly change a company's estimated intrinsic value. That's why experienced investors spend a lot of time thinking carefully about the assumptions they use.
There Is No Perfect Number
Many beginners search for the 'correct' discount rate. In reality, there isn't one. Different investors use different rates depending on their goals, opportunity cost, confidence in the business, and the level of risk they are willing to accept.
Don't Chase False Precision
It's tempting to calculate intrinsic value down to the last rupee by choosing a discount rate like 11.73%. But valuation isn't physics. The future cannot be predicted with that level of precision. A reasonable estimate combined with a healthy margin of safety is usually far more valuable than mathematical perfection.
How Great Investors Think
Many successful long-term investors use a required return that reflects the minimum return they expect from every investment. They compare every opportunity against this hurdle and invest only when the expected return comfortably exceeds it.
Choosing a Discount Rate for Yourself
Your discount rate should reflect your own expectations, not someone else's. It depends on the returns you aim to achieve, the alternatives available to you, and how much uncertainty you're willing to accept. As your investing experience grows, your required return may also change.
One Question Before You Value Any Business
Before calculating intrinsic value, ask yourself: 'If I invest my money in this business today, what annual return would make the risk worthwhile?' Your answer becomes the lens through which you value every future cash flow. Choose it carefully, because it influences every valuation that follows.
INVESTOR PRINCIPLE