AMBA, Ambarella

Will it survive?

• Can it pay its interest? —
  No meaningful interest burden
  Little or no interest expense reported
  What this means

  Little or no interest expense reported, the business isn't leaning on lenders to operate.

• How heavy is the debt, net of cash? +$191M
  Net cash, debt-free
  Cash $191M − debt $0
  What this means

  Cash and short-term investments exceed every dollar of debt by $191M, on net the company owes nothing, and can act from strength when others can't. 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? 33d
  Tight
  DSO 37 + DIO 120 − DPO 124 days
  What this means

  Days cash is tied up between paying suppliers and collecting from customers. Lower is better; a long cycle means growth itself eats cash.

Is it a good business?

• Return on invested capital —
  Not enough data
  Industry peers: median 6%
  What this means

  The filing data didn't include the inputs for this check.

• Owner-earnings margin 11%
  Solid through the cycle
  10-yr median margin, range 3%–36%; latest $58M = operating cash $74M − maintenance capex $16M
  Industry peers: median 15%
  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 15% of revenue this year, a 11% median across 10 years. Treating stock comp as the real expense it is (less $98M of SBC) leaves ($40M).

• Are earnings backed by cash? $74M
  Loss, but cash-generative
  Net income ($76M) · cash from operations $74M
  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? 2%
  Reinvests most of it
  Dividends + buybacks $1M ÷ Owner Earnings $58M — this fiscal year
  What this means

  Of $58M Owner Earnings, $1M (2%) went back to shareholders, $0 dividends, $1M buybacks. But the buybacks barely exceed stock issued to employees ($98M SBC), net of dilution, little was truly returned. 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 2%; across the record (2017–2026) it is 41%, the capital-allocation section below.

• Investing or harvesting? 0.61×
  Harvesting
  Capex $16M ÷ depreciation $26M
  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.

The promise and the pay packet

• Is the buyback buying ownership, or mopping up? 25.1%
  The count is rising
  Stock compensation $98M (fiscal 2026), 25.1% of revenue · repurchases $1M · diluted shares +11.3% since 2023
  What this means

  Stock handed to employees is a real cost paid in the owner's own currency: it is charged against profit, but the shares it creates are permanent. Many companies repurchase stock at the same time, which looks like a return of capital and often is not — if the count barely moves, the cash merely cancelled the pay packet and bought the owner nothing. The three states worth telling apart are a count genuinely shrinking, a count standing still despite large repurchases, and a count rising because the issuance was never offset at all.

Graham’s defensive tests · 1 of 4 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 Miss
  Revenue ≥ $2B · $391M
  What this means

  Big enough to weather a storm. Graham's 1972 floor was ~$100M of sales (≈ $700M today); we use a $2B revenue line as a conservative modern stand-in.

• Strong liquidity Pass
  Current ratio ≥ 2× · 2.31×
  What this means

  Current assets at least twice current liabilities, near-term bills covered without touching the business. Strict by design: many cash-rich modern firms run leaner and miss it, holding their cushion in longer-dated securities.

• Earnings stability Miss
  A profit every year (10-yr record) · 8 loss years
  What this means

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

• Dividend record —
  Uninterrupted dividends · no dividend line tagged in the data
  What this means

  An unbroken dividend was Graham's mark of durability. This record carries no dividends-paid line in any year — common for partnerships, whose distributions file under tags the chain doesn't read — so the criterion is withheld rather than judged on silence.

• Earnings growth Miss
  Earnings +33% over the record · −884%
  What this means

  At least a third more earnings than a decade ago, averaging three years at each end. Net income (not per-share), so stock splits don't distort it, buybacks and dilution show up in the share-count line instead.

• 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 $-2.75/share (latest year $-1.73), the averaged base the calculator's gate runs on, and book value is $13.56/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, 2017–2026

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

• Profitable years 2 of 10
  What this means

  Lost money in 8 year(s), look at what happened there before trusting the average.

• Operating margin 3% → −45% (3-yr avg ends)

  In the filing’s words The filing claims pricing power in its strongest form — price raised, volume held — yet the margin here has not widened to match. The claim leads the record; weigh them together.

  What this means

  Through the cycle the operating margin slipped — about 3% early to −45% lately, median −22% — competition or costs are biting in.

• Owner earnings growth −9%/yr
  What this means

  Owner earnings shrank about 9% a year over the record.

• Worst year 2024 · −68.2% op. margin
  What this means

  Operations went underwater in 2024, understand why before trusting the good years.

• Share count +2.5%/yr
  What this means

  The share count is rising, dilution works against you on a per-share basis.

• How management talks about it Promotional
  What this means

  The returns have faded, yet the filing reaches for a promoter’s vocabulary — world-class, best-in-class, disruptive — more than an owner’s. When the words sell harder than the results deliver, the gap is the thing to weigh.