Discounted Cash Flow (DCF)

Discounted Cash Flow (DCF) is a valuation method used to estimate the value of a business based on its expected future cash flows, which are adjusted (or “discounted”) to their present value using a discount rate.

What is Discounted Cash Flow?

Discounted Cash Flow (DCF) is a valuation method used to estimate the value of an investment or a company based on its expected future cash flows. These future cash flows are adjusted, or “discounted,” back to their present value using a required rate of return. The goal is to determine the intrinsic value of an asset, which can then be compared to its current market price to assess whether it is overvalued or undervalued.

The DCF Formula

Components of DCF Formula:

You must also know that there are two common approaches to DCF, FCFF & FCFE:

1. Free Cash Flow to Firm (FCFF):FCFFis the cash flow available to the company’s suppliers of capital after all operating expenses (including taxes) have been paid and necessary investments in working capital (e.g., inventory) and fixed capital (e.g., equipment) have been made.
2. Free Cash Flow to Equity (FCFE): FCFE is the cash flow available to the company’s holders of common equity after all operating expenses, interest, and principal payments have been paid and necessary investments in working and fixed capital have been made.

Practical Example of DCF Calculation

Let’s understand DCF with a simple example:

Suppose a company is expected to generate the following cash flows over the next 3 years:

• Year 1: ₹10,000
• Year 2: ₹12,000
• Year 3: ₹15,000

Assume the discount rate is 10%.

Step 1: Discount Each Cash Flow

• Year 1: 10,000 ÷ (1.10)¹ = ₹9,091
• Year 2: 12,000 ÷ (1.10)² = ₹9,917
• Year 3: 15,000 ÷ (1.10)³ = ₹11,269

Step 2: Add the Present Values

Total Value = 9,091 + 9,917 + 11,269
= ₹30,277

Final Interpretation

The total present value of future cash flows is ₹30,277.

This means, based on these assumptions, the business is worth around ₹30,277 today.

If the current market price is lower than this value, the asset may be undervalued. If it is higher, it may be overvalued.

How Does DCF Work?

The Discounted Cash Flow (DCF) method works by estimating how much cash a business will generate in the future and then converting those future cash flows into today’s value.

First, you forecast future cash flows over a specific period, usually 5–10 years. Then, you estimate a terminal value, which represents the business value beyond the forecast period.

Next, you apply a discount rate (like WACC) to adjust these future cash flows for risk and time. Finally, all the discounted values are added together to get the intrinsic value of the business.

Components of DCF

Let’s take a look at each component used in a DCF model and what Aswath Damodaran has to say about each one of them.

Forecast Future Cash Flows

Start by estimating the company’s free cash flows over the next 5 to 10 years. This isn’t just about extending past numbers; it’s about building a logical narrative around how the company will grow, what it will earn, and how much it needs to reinvest.

The story should drive your assumptions about revenue growth, margins, and capital spending.

Calculate Terminal Value

Once your detailed forecast ends, you need to estimate the value of the business beyond that period. This is where the terminal value comes in. Damodaran prefers using a steady, conservative growth rate to avoid inflated numbers.

He cautions against being overly optimistic and encourages keeping the assumptions grounded.

Select a Discount Rate

Your discount rate should reflect the risk of the cash flows you’re projecting. Use the cost of equity when valuing cash flows to shareholders, and WACC when valuing the entire firm.

Damodaran emphasises adjusting the rate for both company-specific and country-level risks, especially for global firms.

Discount the Cash Flows

Bring all your projected cash flows, along with the terminal value, back to today’s value using the discount rate. This step turns your future expectations into a present valuation.

Consistency is key here. It’s not just math; it’s what links your story to value.

Sum the Values

Add up the present value of all forecasted cash flows and the terminal value. This total gives you the intrinsic value of the business.

You can now compare this intrinsic value with the market price to judge whether the stock is undervalued or overvalued.

When and Why to Use DCF?

DCF is most useful when you need a deeper, intrinsic understanding of an investment’s value, especially for long-term planning or when public market data is limited.

When to Use DCF:

1. When a company has predictable and stable cash flows. This makes the future easier to estimate and reduces risk in the model.
2. For evaluating long-term projects, mergers and acquisitions, or capital budgeting decisions, where future cash flows are critical.

Why Use DCF:

1. Fundamentally based valuation: Unlike market-based methods such as P/E or EV/EBITDA multiples, DCF focuses solely on a company’s actual financial potential and future cash flows.
2. Investment decision-making: It helps investors compare intrinsic value with market value to identify undervalued or overvalued opportunities, guiding better investment choices.

Basic Difference Between DCF and NPV

Important Considerations

And in the end, let’s take a look at a few things that an analyst must consider before preparing a DCF model

• Terminal Value Dominance: A significant portion of a DCF’s result often comes from the terminal value, making it essential to use reasonable long-term assumptions.
• Input Sensitivity: Small changes in the discount rate or growth assumptions can drastically alter the valuation.
• Not Suitable for All Companies: DCF may be less reliable for early-stage startups or cyclical companies with unpredictable cash flows.

Advantages and Disadvantages of DCF

Advantages of DCF

1. Fundamental Valuation Approach: Focuses on actual cash flows rather than market sentiment.
2. Helps Identify Mispricing: Useful for finding undervalued or overvalued stocks.
3. Flexible and Detailed: Can be customised based on different assumptions and scenarios.

Disadvantages of DCF

1. Sensitive to Assumptions: Small errors in inputs can lead to large valuation differences.
2. Time-Consuming: Requires detailed forecasting and analysis.
3. Less Reliable for Unstable Businesses: Not ideal for companies with unpredictable cash flows.

Conclusion

Discounted Cash Flow (DCF) is a vital tool for estimating the true value of an investment. While it requires accurate forecasting and careful assumption setting, it offers a structured and rational approach to valuation. For investors, analysts, and corporate finance professionals, mastering DCF can significantly enhance investment decision-making and valuation analysis.

Frequently Asked Questions (FAQs)

What is the main purpose of using DCF in valuation?

The main purpose of using DCF in valuation is to estimate the intrinsic value of an asset or business by forecasting its future cash flows and discounting them to the present. This method provides a more detailed and fundamental analysis compared to market-based approaches like P/E ratios or multiples.

How do you choose the discount rate for DCF?

The discount rate is typically based on the company’s cost of capital. For firm-level valuation (FCFF), the Weighted Average Cost of Capital (WACC) is commonly used. For equity holders (FCFE), the cost of equity is used. The discount rate reflects the risk of the projected cash flows and should align with the investment’s risk profile.

What is the terminal value in DCF, and why is it important?

The terminal value represents the value of a business beyond the forecast period, accounting for future cash flows that extend indefinitely. It’s a critical part of DCF because it often contributes to a significant portion of the total valuation, especially for companies with steady cash flows expected to continue long after the forecast period.

Is DCF the same as NPV?

No, DCF and NPV are not the same. DCF is a valuation method used to estimate future cash flows, while NPV is the result that shows whether an investment is profitable after discounting those cash flows.

Why do we need DCF?

DCF helps estimate the intrinsic value of a business based on its future cash flows. It allows investors to compare this value with the market price and make better investment decisions.