Fundamentals · 2026-09-09S&P 500ANNUAL BASIS

Atmos Energy

ATO stock analysis · Utilities · Gas Utilities

FY 2025-09-30ANNUAL FILINGS
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ⓘ These are research estimates based on annual filings. Valuation uses a cash-flow proxy and explicit assumptions; prices are not live. Published valuations use annual periods first filed by the price date, with later restatements retained.
Reference share price · USD
$172.27HISTORICAL SNAPSHOT

As of · fund-implied per-share value

Fund holding value ÷ shares held. Not a live quote; not adjusted for later stock splits.

View SEC fund filing ↗
Estimated issuer market cap
$29.1B

Price × SEC outstanding shares. Shares measured 2026-06-30. Approximate; share and price dates can differ.

View share-count filing ↗
Valuation

DCF value

— Requires positive annual FCF, usable shares and discount rate above terminal growth.

Requires positive annual FCF, usable shares and discount rate above terminal growth.

How this is calculated ↗
Valuation

Reverse DCF

— No solution in −50% to +100% growth, or nonpositive FCF / invalid assumptions.

No solution in −50% to +100% growth, or nonpositive FCF / invalid assumptions.

How this is calculated ↗
Valuation

Relative valuation

-4.7%

30 sector peers · median 23.2×

How this is calculated ↗
Valuation

Historical multiples

21.2×

7 annual observations · snapshot P/E 24.3× · 14.6% versus history

How this is calculated ↗
Valuation

Free cash flow yield

-5.2%

Annual basis · read assumptions below

How this is calculated ↗
Quality

ROIC / quality

5.9%

Normalized tax · financing-capital proxy · parent-equity fallback (scope limitation) · short-term borrowing coverage incomplete

How this is calculated ↗
Valuation

Value composite

44/100

Annual basis · read assumptions below

How this is calculated ↗
Momentum

12–1 price momentum

— Split and corporate-action verification is incomplete for these fund observations. Verified adjusted endpoints are required for 12–1 momentum.

Split and corporate-action verification is incomplete for these fund observations. Verified adjusted endpoints are required for 12–1 momentum.

How this is calculated ↗
Investment

Asset growth

12.1%

Annual basis · read assumptions below

How this is calculated ↗
Investment

Net payout yield

— Requires reported dividends, repurchases and issuance; missing values are not zero.

Requires reported dividends, repurchases and issuance; missing values are not zero.

How this is calculated ↗
Quality

Accrual quality

-3.2%

Parent-earnings fallback versus consolidated cash flow · scope limitation

How this is calculated ↗
Momentum

Fundamental momentum

5.2%

Annual basis · read assumptions below

How this is calculated ↗

Follow the cash

ANNUAL · USD

Operating cash flow and reinvestment over time

USD · bar maximum 3.6B2020-09-30: cfo $1,037,999,000.002020-09-30: capex $1,935,676,000.0020202021-09-30: cfo -$1,084,251,000.00 (negative; lower scale compressed)2021-09-30: capex $1,969,540,000.0020212022-09-30: cfo $977,584,000.002022-09-30: capex $2,444,420,000.0020222023-09-30: cfo $3,459,743,000.002023-09-30: capex $2,805,973,000.0020232024-09-30: cfo $1,733,746,000.002024-09-30: capex $2,937,124,000.0020242025-09-30: cfo $2,049,456,000.002025-09-30: capex $3,561,399,000.002025
Operating cash flowCapital expenditure

Annual USD. Negative bars use a compressed lower scale. Hover or inspect the financial history table for exact values.

Make the assumptions yours

Personal inputs stay in this browser. Blank fields retain published inputs. Five-year forecast; zero net borrowing. Required return must exceed terminal growth.

How sensitive is the valuation?

DCF per-share sensitivity · includes reviewed preferred and minority-owner claims · rows: required return · columns: growth
Return / Growth3.0%5.0%7.0%
8.0%———
10.0%———
12.0%———

Annual financial history

Open SEC filings ↗
Fiscal year-endRevenueNet incomeOperating cash flowCapital expenditureAssets
2025-09-304.7B1.2B2B3.6B28.2B
2024-09-304.2B1B1.7B2.9B25.2B
2023-09-304.3B885.9M3.5B2.8B22.5B
2022-09-304.2B774.4M977.6M2.4B22.2B
2021-09-303.4B665.6M-1.1B2B19.6B
2020-09-302.8B601.4M1B1.9B15.4B
2019-09-302.9B511.4M968.8M1.7B13.4B
2018-09-303.1B603.1M1.1B1.5B11.9B

USD, abbreviated. Restated annual history; not a point-in-time backtest. Missing values appear as dashes.

Trace the inputs

MODEL ANNUAL PERIOD
InputValueSEC tag / sourceFiled
revenue4.7BRevenues2025-11-14
netIncome1.2BNetIncomeLoss
Parent-attributable fallback: a verified consolidated total is unavailable in the supported tags. Noncontrolling interests have not been assumed to be zero; this may differ in scope from consolidated cash flow or operating income.
2025-11-14
Parent/common earnings proxy1.2BNetIncomeLossAvailableToCommonStockholdersBasic2025-11-14
cfo2BNetCashProvidedByUsedInOperatingActivities2025-11-14
capex3.6BPaymentsToAcquireProductiveAssets2025-11-14
operatingIncome1.6BOperatingIncomeLoss2025-11-14
assets28.2BAssets2025-11-14
equity13.6BStockholdersEquity
Parent-attributable fallback: a verified consolidated total is unavailable in the supported tags. Noncontrolling interests have not been assumed to be zero; this may differ in scope from consolidated cash flow or operating income.
2025-11-14
Parent book equity proxy13.6BStockholdersEquity2025-11-14
debt9BLongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities2025-11-14
shortDebt—Not reported under a supported tag—
cash202.7MCashAndCashEquivalentsAtCarryingValue2025-11-14
shares160.6MWeightedAverageNumberOfDilutedSharesOutstanding2025-11-14
dividends553.8MPaymentsOfDividendsCommonStock2025-11-14
buybacks—Not reported under a supported tag—
issuance698.5MProceedsFromIssuanceOfCommonStock2025-11-14