Step 07
Level: intermediate
DCF estimates value using future cash flows discounted to the present, but the results depend strongly on assumptions so multiple scenarios and sensitivity analysis are needed. Without valuation, investors can easily buy good assets at too high valuations or miss opportunities because they only look at short-term fluctuations.
A good DCF should have a base, bear, and bull cases. Revenue, margin, working capital, capex, WACC and terminal value assumptions must be consistent with business economics. Sensitivity analysis shows which assumptions have the greatest impact on the value. Because all valuations contain uncertainty, investors need to understand what is driving value up or down.
Valuation not only answers whether to buy, but also helps decide how much to buy, what margin of safety to require and when to review.
DCF estimates value using future cash flows discounted to the present, but the results depend strongly on assumptions so multiple scenarios and sensitivity analysis are needed.
Valuation is not about finding a perfect number. Valuation is the process of turning knowledge about the business, cash flows, risks and time horizon into a reasonable range of value. That value range helps investors compare with market prices and make more disciplined decisions.
A good DCF should have a base, bear, and bull cases. Revenue, margin, working capital, capex, WACC and terminal value assumptions must be consistent with business economics. Sensitivity analysis shows which assumptions have the greatest impact on the value.
A good valuation model must be consistent with the quality of the business. A high-growth business that requires too much capital may not be worth as much as it seems. Businesses with high margins but weak moat also need to be discounted. Conversely, stable businesses with good cash flows and reliable management may deserve higher-than-average valuations.
Always present a valuation range rather than an artificially precise number.
When valuing, start with simple assumptions and test sensitivity before building complex models. Ask whether the results depend most on growth, margins, cost of capital or terminal value. If even a small change causes the conclusion to reverse, decide that a larger margin of safety is needed.
Create detailed models but do not test the sensitivity of key assumptions.
Valuation can create a sense of control because the spreadsheet has a lot of numbers. But the future is not as precise as a spreadsheet. Always present valuations as ranges, clearly state key assumptions, and connect results to position size rather than looking at valuation as the only answer.
Valuation method by discounting future cash flows to the present.
The value of cash flows after the detailed forecast period in the DCF model.
Check how estimates change when key assumptions change.
Valuation can be based on relative multiples, discounted cash flows, net assets, normalized earnings, or implied expectations. Each method has its own strengths and limitations.
Assets with stable cash flows are often easier to value than assets with high growth, strong cyclicality or reliance on new technology.
Valuation results need to be translated into decisions to buy, hold, sell, monitor, or cap position size based on the margin of safety and risk.
Application in asset valuation
If the DCF value changes from VND 50,000 to VND 120,000 because WACC changes by 1 percentage point and long-term growth changes slightly, the valuation conclusion must be very conservative.
Risk analysis
Create detailed models but do not test the sensitivity of key assumptions. This could lead investors to be overconfident in a very fragile valuation conclusion.
The value should be understood as a probability range because all assumptions about the future are subject to error.
Without knowing which assumptions have the strongest impact, it is difficult for investors to know how reliable the model is.
Create detailed models but do not test the sensitivity of key assumptions. A low price is not attractive enough if the business is weakening or cash flow is difficult to forecast.
Exercise 1 - reflection
Choose an asset you are interested in and analyze it from a multi-scenario perspective and sensitivity analysis.
Exercise 2 - case_study
If the DCF value changes from VND 50,000 to VND 120,000 because WACC changes by 1 percentage point and long-term growth changes slightly, the valuation conclusion must be very conservative. Identify the most important valuation assumptions and risks of bias.
Exercise 3 - action_plan
Create a 5-step checklist to convert a valuation result into a capital allocation decision.