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Duke Energy (DUK): analysis traps
Where its figures could mislead a reader, and what to check before taking them at face value · Data: Q3 2026, to Sep 30, 2026, filed Nov 5, 2026; rules v1.1
Duke Energy (DUK): 1 rule of 10 triggered on the filings to Sep 30, 2026: low net debt = no refinancing risk. 2 to review; 2 with insufficient data; 2 not applicable. Each is a question to verify, with the normal explanation that would produce the same figures.
Check these first
Low net debt = no refinancing risk Triggered · severity high · confidence medium
$7.1B of debt comes due within a year against $451M of cash and investments and no free cash flow to add: $6.7B short, to be refinanced or raised. Net debt of $89.1B says nothing about when the debt falls due.
Innocent reading: A committed, undrawn credit facility covers the gap (not visible in the balance sheet).
Low P/E at a cyclical peak = undervalued To review · confidence medium
Net income of $5.1B is at a high against a median of $3.7B over eight years; at 19.9× the market is not pricing it as cheap, but a multiple on this year's profit still understates the mid-cycle one (27.0×).
A precise DCF value = the true value To review · confidence high
The DCF's point value is 152.93 a share (price 130.08); 93% of it is the terminal value, a number about years no one has seen. Moving wacc by ±1 pt alone takes it from 85.09 to 280.28; across every method the research ran the range is -15 to 403. The value is a range; the decimals are not information.
Innocent reading: A stable, mature business with a narrow range of outcomes, where the point value is a fair summary.
Every rule
A01 FCF growth = the business improved Not triggered confidence high
Free cash flow did not rise ($48M → −$1.7B): the trap does not arise.
The figures and how they are read
| Fiscal year before | FY2024 |
| Fiscal year | FY2025 |
| Operating cash flow, year before | $12.3B |
| Operating cash flow | $12.3B |
| Capex, year before | $12.3B |
| Capex | $14.0B |
| Free cash flow, year before | $48M |
| Free cash flow | −$1.7B |
| Change in FCF | −$1.7B |
| Change in capex | $1.7B |
| Working capital: change in its cash contribution | −$2.9B |
FCF = operating cash flow − cash capex; ΔFCF = ΔOCF − ΔCapEx; the working-capital part is the change in the cash-bridge items (receivables, inventory, payables, accruals), with the sign of the cash flow statement
Source: FY2025 (cash flow statement, fiscal year) · FY2024 (cash flow statement, fiscal year before)
A07 Stock compensation added back = no economic cost Not triggered confidence high
Stock compensation is 0.3% of revenue: small enough that adding it back changes little.
The figures and how they are read
| Fiscal year | FY2025 |
| Stock compensation | $102M |
| Revenue | $32.2B |
| SBC / revenue | +0.3% |
| Buybacks | 0 |
| Buybacks / SBC | 0.0 |
| Diluted shares, year before | 772.0M shares |
| Diluted shares | 777.0M shares |
| Diluted shares: change | +0.7% |
SBC / revenue from the cash flow statement's add-back; the diluted weighted share count year over year; buybacks from the financing section
Source: FY2025 (stock compensation, buybacks and the diluted share count, fiscal year)
B02 Receivables growing = future cash is certain Insufficient data
no quarter a year earlier to compare the last two quarters with
B08 Adjusted profit = economic profit Insufficient data
no reconciliation table read from the releases yet and fewer than three quarters with both an adjusted and a GAAP EPS
C02 Low net debt = no refinancing risk Triggered severity high · confidence medium
$7.1B of debt comes due within a year against $451M of cash and investments and no free cash flow to add: $6.7B short, to be refinanced or raised. Net debt of $89.1B says nothing about when the debt falls due.
The figures and how they are read
| Cash and investments | $451M |
| Debt | $89.6B |
| Net debt | $89.1B |
| Due within a year | $7.1B |
| Read from | the debt maturity table |
| Free cash flow, twelve months | −$5.2B |
| Cash plus free cash flow | $451M |
| Coverage of what is due | 0.1 |
| Due in the second year | $3.6B |
| Balance sheet date | 2026-09-30 |
due within a year from the maturity table (else the current portion of debt), against cash and investments plus free cash flow over the last twelve months (zero if negative); no credit lines assumed
Source: FY2025 (debt maturities, cash and investments)
What would explain it innocently
- A committed, undrawn credit facility covers the gap (not visible in the balance sheet)
- The notes are routinely rolled over in the commercial-paper or bond market at an investment-grade rating
- Cash held abroad or in subsidiaries can be moved to where the debt is
- A sale of a business or asset already agreed brings the cash
What to look for in the filing
- Undrawn committed facilities and their covenants
- The cost and rating of the refinancing
- Restricted cash and the operating minimum
What would show the trap does not apply
- The 10-K lists an undrawn credit facility that covers the debt due, or the maturity is refinanced before it falls due
- Cash plus FCF of the next quarter exceeds the debt due within a year
Look again: next filing.
D03 EPS growth = profit growth Not triggered confidence high
EPS rose 10% and net income rose 10% in Q3 2026; the share count rose 0.3%: EPS growth follows profit growth.
The figures and how they are read
| Quarter | Q3 2026 |
| Quarter before | Q3 2025 |
| EPS, year before | $1.83 |
| EPS | $2.01 |
| Net income, year before | $1.4B |
| Net income | $1.6B |
| Diluted shares, year before | 778.0M shares |
| Diluted shares | 780.0M shares |
| EPS growth | +9.9% |
| Net income growth | +10.1% |
| Diluted shares: change | +0.3% |
| eps from profit | $0.19 |
| eps from share count | -$0.01 |
EPS and net income against the same quarter a year earlier; the EPS bridge attributes the change to profit first, then to the share count (the order is fixed and disclosed)
Source: Q3 2026 (net income, diluted shares, EPS) · Q3 2025 (the same quarter a year earlier)
E02 Low P/E at a cyclical peak = undervalued To review confidence medium
Net income of $5.1B is at a high against a median of $3.7B over eight years; at 19.9× the market is not pricing it as cheap, but a multiple on this year's profit still understates the mid-cycle one (27.0×).
The figures and how they are read
| market value | $101.1B |
| net income ttm | $5.1B |
| pe ttm | 19.90 |
| net income median fy | $3.7B |
| pe mid cycle | 27.00 |
| net income peak fy | $5.0B |
| years | FY2018 / 2666.0; FY2019 / 3748.0; FY2020 / 1377.0; FY2021 / 3908.0; FY2022 / 2550.0; FY2023 / 2841.0; FY2024 / 4524.0; FY2025 / 4968.0 |
| down years in window | 2 |
P/E on the trailing twelve months' net income against the P/E on the median net income of the last eight fiscal years (a mid-cycle stand-in); 'at a peak' = this year's profit at or above 90% of the best year and at least 1.3× the median
Source: Q3 2026 (net income, trailing twelve months)
What would show the trap does not apply
- Profit holds at this level through the next two years (the eight-year peak was a new base, not a top)
- The industry's capacity and prices stay where they are rather than reverting
Look again: next filing.
E07 A precise DCF value = the true value To review confidence high
The DCF's point value is 152.93 a share (price 130.08); 93% of it is the terminal value, a number about years no one has seen. Moving wacc by ±1 pt alone takes it from 85.09 to 280.28; across every method the research ran the range is -15 to 403. The value is a range; the decimals are not information.
The figures and how they are read
| dcf value | 152.93 |
| price | 130.08 |
| terminal value share | +93.0% |
| swing by input | WACC / ±1 pt / 85.09 / 280.28; Revenue growth (each year) / ±5 pts / 97.78 / 219.18; Operating margin / ±3 pts / 118.8 / 187.06; Terminal growth / ±0.5 pt / 133.29 / 179.4 |
| range all methods | -14.81; 403.19 |
the DCF's point value against the share of it that is the terminal value and the value at each input moved by one step (growth ±5 pts, WACC ±1 pt, margin ±3 pts …); the range across every method the research ran
Source: 2026-11-08 (valuation research)
What would explain it innocently
- A stable, mature business with a narrow range of outcomes, where the point value is a fair summary
- The inputs that matter most are themselves well known (a regulated return, a long contract)
What to look for in the filing
- Which input you believe differs from the research's and why
- What the price implies for growth (the reverse DCF on the fair-value page)
What would show the trap does not apply
- The DCF's value is robust to the terminal growth and discount rate (the range's low end is still above the price)
- The company's cash flows over the next three years track the DCF's early years
Look again: next filing.
J06 A bank's low P/E and high profit = safe Not applicable
not a bank
J08 A REIT's low net income = the dividend is unsafe Not applicable
not a REIT
What the statuses mean
Triggered: the filings show the pattern; read the normal explanations and the missing evidence before concluding anything. To review: one quarter or a weak signal; a reader's judgement, not a pattern. Not triggered: the pattern is absent on these figures. Insufficient data: the filings read so far do not hold what the rule needs; this is not a clean bill. Not applicable: the rule is not meant for this kind of company (a bank's working capital, a loss-making quarter's EPS growth). Out of date: the latest filing is more than fifteen months old.
Severity is what the pattern could mean for cash, value or solvency; confidence is how reliable the inputs and the reading are. The two are kept apart.
Record a view
A reader's judgement, grounds, what would change it and the next review; kept in the browser (needs JavaScript).
Every rule and the companies it triggers on → Duke Energy: cash flow → Earnings quality score →
Each rule reads the company's own filings by a fixed formula and says what would explain the same figures innocently. A triggered rule is a question to verify, not a finding of manipulation, and not a view on the stock. Missing data is shown as missing, never as clear. Not investment advice.