TAC, TransAlta Corporation

Will it survive?

• Can it pay its interest? 0.4×
  Does not cover its interest
  Operating income C$140M ÷ interest expense C$347M
  What this means

  A full year of operating profit didn't cover the interest bill. This is the zombie zone: the business depends on refinancing, asset sales, or forbearance to service its debt.

• How heavy is the debt, net of cash? C$3.4B · 24.2× operating profit
  Heavy net debt
  Cash C$205M − debt C$3.6B
  What this means

  Netting C$205M of cash and short-term investments against C$3.6B of debt leaves C$3.4B owed, about 24.2× a year's operating profit (25.6× on the gross debt, before the cash). Net debt is the leverage figure that matters: the cash is already set against the debt. Strategic or illiquid investments aren't counted here.

• How long is cash tied up? -83d
  Negative, funded by others
  DSO 106 + DIO 42 − DPO 231 days
  What this means

  Days cash is tied up between paying suppliers and collecting from customers. A negative cycle is a quiet moat: suppliers and customers fund the operation (Buffett's “float”), the company grows on other people's money.

Is it a good business?

• Return on invested capital 5%
  Below average through the cycle
  7-yr median, range -5%–21%; 2% latest = NOPAT C$111M ÷ invested capital C$4.8B
  Industry peers: median 6%
  What this means

  The rate the business earns on the money tied up in it, Buffett's north star, because over time a stock tracks the ROIC beneath it. Above ~15% sustained hints at a moat; a return below the cost of capital (~8%) erodes value as a business grows rather than building it — the test Buffett weighs most. The headline is the median of the last 7 years (it ran 2% most recently), so one peak or trough year doesn't set the verdict. Asset-light businesses (R&D expensed, little capital) read artificially high, pair this with Owner Earnings.

• Owner-earnings margin 17%
  High through the cycle
  10-yr median margin, range 9%–25%; latest C$397M = operating cash C$646M − maintenance capex C$249M
  Industry peers: median 3%
  What this means

  What an owner could take out without starving the business: operating cash less the maintenance capital it must spend to hold its position — Buffett's owner earnings. That's 17% of revenue this year, a 17% median across 10 years.

• Are earnings backed by cash? C$646M
  Loss, but cash-generative
  Net income (C$138M) · cash from operations C$646M
  What this means

  The company reported a net loss, so a conversion ratio isn't meaningful. What matters then is whether operations still threw off cash, here, they did.

How is the cash used?

• Where do the earnings go? 19%
  Reinvests most of it
  Dividends + buybacks C$76M ÷ Owner Earnings C$397M — this fiscal year
  What this means

  Of C$397M Owner Earnings, C$76M (19%) went back to shareholders, C$52M dividends, C$24M buybacks. Returning most of it is the mark of a mature business with little left to reinvest at a high return; reinvesting most could mean a long runway, or empire-building. The split doesn't say which; the return earned on it (see ROIC) does. This year's proportion is 19%; across the record (2016–2025) it is 21%, the capital-allocation section below.

• Investing or harvesting? 0.43×
  Harvesting
  Capex C$249M ÷ depreciation C$579M
  What this means

  Descriptive, not a grade. Above ~1× means investing faster than assets wear out (growth, or, sustained for years, today's earnings carrying less depreciation than tomorrow's will). Below means spending less than it's wearing out (efficiency, or a melting asset base). The ratio won't tell you which; the filings will.

Graham’s defensive tests · 1 of 3 met

Graham’s numerical criteria for the defensive investor (The Intelligent Investor, ch. 14), run on the filings. A floor of safety, not a buy signal; many fine modern businesses fail his strictest liquidity rules by design.

• Adequate size —
  Revenue ≥ $2B (a dollar floor) · C$2.4B
  What this means

  Big enough to weather a storm. Graham's floor is a dollar figure — about $2B of revenue as a conservative modern stand-in. This company reports in its home currency and we carry no exchange rate, so we show the figure and leave the size bar for you to apply rather than convert it with a number we don't have.

• Strong liquidity —
  Current ratio ≥ 2× (waived for utilities) · exempt
  What this means

  Graham exempted public utilities from this test: their working capital “takes care of itself” through the continuous bond-and-share financing of growth, so a thin current ratio is the industry's structure, not a warning. His substitute test — debt no more than twice book equity — is the next line.

• Conservative debt Miss
  Debt ≤ 2× equity (Graham's utility test) · C$3.6B vs C$1.4B equity
  What this means

  Graham's own substitution for public utilities: debt not exceeding twice the stock equity at book value, in place of the working-capital tests an industrial faces. A utility finances its plant with bonds by design; the question is whether the borrowing stays inside the equity behind it.

• Earnings stability Miss
  A profit every year (10-yr record) · 5 loss years
  What this means

  Graham wanted earnings in each of the past ten years, the stability a defensive owner leans on.

• Dividend record Pass
  Uninterrupted dividends · paid every year (10)
  What this means

  An unbroken dividend was Graham's mark of durability. He wanted twenty years; the filings show about ten, and a single suspension breaks the streak. Non-payers, many fine modern compounders, fall outside his defensive net by design.

• Earnings growth —
  Earnings +33% over the record · —
  What this means

  Earnings were negative early in the record, a growth rate isn't meaningful.

• Moderate price —
  P/E ≤ 15 and P/E × P/B ≤ 22.5 · decided by the price
  What this means

  Graham's valuation gate, the wall he kept between a sound business and a sound investment. Three-year average earnings are C$0.88/share (latest year C$-0.47), the averaged base the calculator's gate runs on, and book value is C$4.71/share. Enter a price in “What the price implies” just below for the P/E, P/B, and whether it clears. But this is the rule Buffett outgrew: there's no hard P/E law, and a wonderful business can deserve a far richer multiple if the thesis holds, treat it as the bargain-hunter's floor, not a verdict on the price.

Durability & moat, 2016–2025

Whether the record’s returns held, and what the capital reinvested earned.

• Profitable years 5 of 10
  What this means

  Lost money in 5 year(s), look at what happened there before trusting the average.

• Return on capital ≥ 15% 1 of 10 yrs
  What this means

  A moat shows up as a high return on invested capital that holds year after year, not one good vintage.

• Operating margin 11% → 20% (3-yr avg ends)

  In the filing’s words The margin widened even though the filing names price competition — the gain came from volume or cost, not pricing power. Read where.

  What this means

  Through the cycle the operating margin widened — about 11% early to 20% lately, median 7% — pricing power intact or improving.

• Reinvestment, incremental ROIC returns capital
  What this means

  The capital base barely grew: this business returns cash through dividends and buybacks rather than reinvesting. Judge it on the cash returned, not on compounding.

• Owner earnings growth +3%/yr
  What this means

  Owner earnings grew about 3% a year over the record.

• Worst year 2021 · −8.8% op. margin
  What this means

  Operations went underwater in 2021, understand why before trusting the good years.

• Share count +0.3%/yr
  What this means

  Roughly flat share count, little dilution, little buyback.

• Dividend record paid
  What this means

  Paid a dividend in 10 of the years on record.