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ALTMAN Z-SCORE  /  EV MANUFACTURING  /  CASE: RIVN
CASE STUDY · ALTMAN Z-SCORE · Q1 2026 10-Q · 10 MIN READ

Rivian's Altman Z-score sits in the distress zone — and the peers don't help

The Altman Z-score was built in 1968 to predict corporate bankruptcy from five balance-sheet ratios. It still works — especially for capital-intensive manufacturers with thin profits. Rivian's Q1 2026 inputs produce a Z of −1.61, deep below the 1.81 distress threshold. But Rivian doesn't fail like a textbook firm. With $3.94B in cash, distress means dilution, not insolvency.

§ 01Building Rivian's Z-score

The classical model: Z = 1.2·A + 1.4·B + 3.3·C + 0.6·D + 1.0·E, where each ratio captures a different distress signal. The factors penalize negative retained earnings and operating losses most heavily — which is exactly where pre-profitability automakers live.
RIVN Q1 2026 · Altman Z inputs
Factor Definition Value Weight Contribution
A Working capital / Total assets 0.224 1.2 +0.269
B Retained earnings / Total assets (0.964) 1.4 −1.350
C EBIT (TTM × 4) / Total assets (0.508) 3.3 −1.676
D Market cap / Total liabilities 1.875 0.6 +1.125
E Sales / Total assets 0.347 1.0 +0.347
Altman Z-score (classical) −1.61
Interpretation zones
Z > 2.99 Safe — low bankruptcy probability
1.81 ≤ Z ≤ 2.99 Grey zone — caution warranted
Z < 1.81 Distress — historically >75% bankrupt within 2 years
Z-score in one number
−1.61
Distress zone

Factor C — operating profitability — does most of the damage, pulling 1.68 points off the score. Rivian's TTM EBIT is roughly −$5.1B, against $10.0B of total assets.

Why Z is misleading here

Z penalizes retained-earnings deficit and operating losses without crediting cash on hand. Rivian holds $7.6B of cash + short-term securities — roughly two years of operating losses. The model says distress; the bank statement says runway.

Rivian snapshot

RIVN · $15.96MC $19.64B

Cash & ST sec. $7.6B · TTM Rev $5.51B · TTM OpLoss ($5.10B) · Total liab. $10.5B