Discounted Cash Flow (DCF) Valuation

Welcome back. We’ve analyzed the past (Financial Statements) and the present (Ratios). Today, we tackle the "Holy Grail" of finance: Discounted Cash Flow (DCF) analysis.

If you understand DCF, you understand the very soul of investing. In the 2026 market, where stock prices can be driven by social media trends or AI hype, DCF is your objective reality. It is a valuation method used to estimate the value of an investment based on its expected future cash flows.

1. The Core Philosophy: Time Value of Money (TVM)

The fundamental premise of DCF is that a rupee today is worth more than a rupee tomorrow. Why? Because a rupee today can be invested to earn interest.

Therefore, to know what a company is worth today, we must take all the cash it will earn in the future and "translate" it back into today’s value. This process is called Discounting.

2. The DCF Formula: Decoding the Math

While it looks intimidating, the logic is sequential. You are simply adding up the "Present Value" of every future year's cash.

DCF = + …. +

• CF (Cash Flow): The free cash the business generates each year.
• r (Discount Rate): Usually the WACC (Weighted Average Cost of Capital). It represents the risk and the opportunity cost of the money.
• n (Time): The specific year in the future.

3. The 5-Step DCF Workflow

To build a DCF model for a company like Zomato or Tata Motors in 2026, we follow these steps:

Step 1: Forecast Free Cash Flows (FCF)

We project how much "spare cash" the company will have after paying for its operations and factories for the next 5–10 years.

Formula: FCF = EBIT x (1 - t) + Depreciation - CapEx - DWorking Capital

Step 2: Calculate the Discount Rate (WACC)

What is the "hurdle rate"? If the company is risky, we use a higher discount rate (which makes the future cash worth less today). If it’s a stable giant like Reliance, the rate is lower.

Step 3: Calculate the Terminal Value (TV)

A company doesn't stop existing after 10 years. The Terminal Value represents the value of all cash flows from Year 11 into infinity.

• Perpetuity Growth Method: Assuming the company grows at a steady 2-3% (inflation rate) forever.

Step 4: Discount Everything to the Present

We apply the WACC to every yearly FCF and the Terminal Value to bring them back to "Year 0" (Today).

Step 5: Enterprise Value to Equity Value

Once we have the total value of the business (Enterprise Value), we subtract the company’s Debt and add its Cash. Dividing this by the number of shares gives us the Intrinsic Value per Share.

4. The "Assumption Trap"

The DCF is a powerful tool, but it has a famous weakness: "Garbage In, Garbage Out."

In 2026, small changes in your assumptions can lead to massive differences in price.

• If you change the Growth Rate from 3% to 4%, the valuation might jump by 20%.
• If you change the Discount Rate (WACC) by just 1%, the "fair price" might crash.

Equiscale Tip: Professional analysts always perform a Sensitivity Analysis (a "Stress Test"). They create a table showing the stock's value under different combinations of growth and discount rates. This gives you a Valuation Range rather than a single "perfect" number.

5. Summary: Why Use DCF?

• It forces you to think about Cash, not just accounting profits.
• It is Forward-Looking, whereas ratios are often based on the past.
• It ignores market "noise" and focuses on the Fundamental Truth of the business.