UZF, Array Digital Infrastructure, Inc.

Will it survive?

• Can it pay its interest? -3.3×
  Does not cover its interest
  Operating income ($93M) ÷ interest expense $28M
  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? $561M
  Net debt against an operating loss
  Cash $113M − debt $674M
  What this means

  Netting $113M of cash and short-term investments against $674M of debt leaves $561M owed, with no operating profit this year to measure it against — understand that combination before anything else about the company. 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? 2721d
  Long (60+ days)
  DSO 2027 + DIO 822 − DPO 128 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 0%
  Below average through the cycle
  10-yr median, range -5%–3%; -3% latest = NOPAT ($93M) ÷ invested capital $3.1B
  Industry peers: median -0%
  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 10 years (it ran -3% 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 5%
  Solid through the cycle
  10-yr median margin, range 0%–107%; latest $174M = operating cash $201M − maintenance capex $27M
  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 107% of revenue this year, a 5% median across 10 years. Treating stock comp as the real expense it is (less $2M of SBC) leaves $172M.

• Are earnings backed by cash? 4.12×
  Cash-backed
  Cash from ops $201M ÷ net income $49M
  What this means

  How much of reported profit showed up as operating cash. Above 1× is reassuring; well below suggests earnings lean on accruals. One year is noisy, growth and working-capital swings distort it, and this is operating cash, not free cash. Watch the multi-year trend.

How is the cash used?

• Where do the earnings go? 290%
  Returned more than it generated
  Dividends + buybacks $504M ÷ Owner Earnings $174M
  What this means

  The company returned more than it generated: against $174M of Owner Earnings, $504M (290%) went back to shareholders, $482M dividends, $21M buybacks — the excess came from the balance sheet or borrowing, not the year's operations. Net of $2M stock comp, the real buyback was about $20M. Sustained, that pattern draws down cash or adds debt; the net-debt line above shows where it stands.

• Investing or harvesting? 0.70×
  Harvesting
  Capex $27M ÷ depreciation $39M
  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 · 0 of 6 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 · $163M
  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 Miss
  Current ratio ≥ 2× · 0.72×
  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.

• Conservative debt Miss
  Debt ≤ working capital · $674M vs ($55M) WC
  What this means

  Graham's rule that borrowings not exceed net current assets. Capital-heavy and buyback-heavy firms routinely fail it, read it next to interest coverage, not alone.

• Earnings stability Near
  A profit every year (10-yr record) · 1 loss year
  What this means

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

• Dividend record Miss
  Uninterrupted dividends · none paid
  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 Miss
  Earnings +33% over the record · −70%
  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 $0.25/share (latest year $0.56), the averaged base the calculator's gate runs on, and book value is $29.70/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 9 of 10
  What this means

  Lost money in 1 year(s), look at what happened there before trusting the average.

• Return on capital ≥ 15% 0 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 −1% → −22% (3-yr avg ends)
  What this means

  Through the cycle the operating margin slipped — about −1% early to −22% lately, median 1% — competition or costs are biting in.

• 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 +37%/yr
  What this means

  Owner earnings grew about 37% a year over the record.

• Worst year 2025 · −56.8% op. margin
  What this means

  Operations went underwater in 2025, understand why before trusting the good years.

• Share count +0.3%/yr
  What this means

  Roughly flat share count, little dilution, little buyback.

• How management talks about it Owner’s terms
  What this means

  The record and the register agree: capital is compounding and the filing reasons in an owner’s terms — per-share value, return on capital, the long term — not a promoter’s.