Growth & Assumptions
Market & Balance Sheet Data
Cash Flow Projection
Valuation Breakdown
Calculated Fair Value
ATO (ATO) DCF Valuation Analysis
Independent intrinsic value calculation based on latest financial reports.
Our ATO DCF calculator utilizes a two-stage Discounted Cash Flow model to estimate the true value of ATO stock. As of the most recent quarterly report (12/31/2025), ATO generated -$1,628,063,000 in Trailing Twelve Month (TTM) Free Cash Flow.
Key Valuation Metrics for ATO
By discounting ATO's future cash flows using an expected return of 11%, we can determine if the stock is currently trading at a margin of safety. A negative margin of safety suggests that market expectations may be too high relative to the company's historical cash flow productivity.
Final Verdict
For ATO to be considered a fair investment at current levels, it would need to sustain a cash flow growth rate of approximately 14.20% for the next five years. This valuation model accounts for ATO's current cash position of $367,023,008 and total debt of $9,632,877,568. Currently trading at a premium to its intrinsic value, investors should carefully consider the growth assumptions required to justify the current price.
Why use DCF for ATO?
Discounted Cash Flow is widely considered the most accurate method for valuing mature companies like ATO. Using our Free DCF Calculator, you can customize every assumption in this model to see how it affects the intrinsic value.