Altman Z-Score — will this company survive?
In 1968, American professor Edward Altman developed a model to predict which companies were likely to go bankrupt. He tested it on hundreds of companies and found it was accurate about 80% of the time two years before a bankruptcy actually happened.
What the score means
What goes into the calculation
The Z-Score combines five financial ratios, each measuring a different aspect of financial health:
Working capital to total assets — Does the company have enough short-term liquidity relative to its size?
Retained earnings to total assets — Has the company built up earnings over time or been running on borrowed money?
Operating profit to total assets — How efficiently is the company generating profit from its assets?
Market cap to total liabilities — What does the market think the company is worth relative to what it owes?
Revenue to total assets — How effectively is the company using its assets to generate sales?
A real-world example
TCS has a very high Altman Z-Score — typically above 10. This makes complete sense: large cash reserves, decades of accumulated profits, very high margins, a large market cap relative to minimal debt, and high revenue per rupee of assets.
A heavily indebted steel manufacturer during a downturn might score 1.5 — in the distress zone — not necessarily because it will go bankrupt, but because the financial stress is real. The Z-Score quantifies that stress before it becomes a crisis.
Important limitations
The Altman Z-Score was designed for manufacturing companies. It is less reliable for:
Banks and financial companies — their balance sheets look very different because debt is their raw material, not a risk factor. Do not use Z-Score for banks.
New-age loss-making companies — companies like Zomato in their early years show poor Z-Scores simply because they have not yet built retained earnings. This does not mean they are about to go bankrupt.
Pure holding companies — the ratios do not translate well to companies whose main asset is shares in other companies.
How to use it in practice
Z-Score works best as a screening tool and a warning flag. When comparing two similar companies and one scores 2.0 while the other scores 4.5 — pay attention to that difference. The first company is carrying more financial risk.
When a company's Z-Score has been declining consistently for three years — from 4 to 3 to 2 — that trend is more informative than any single reading. And when a distress-zone company is also showing rising debt, falling revenue, and pledged promoter shares — the Z-Score is telling you something the headlines have not caught up to yet.
See it in practice
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