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nism-series-xv-altman-z-score-bankruptcy-model[ RESEARCH ANALYST ]

In financial credit analysis, how is a manufacturing company's Altman Z-Score classified into solvency risk zones?

[ A ]Z < 1.81 indicates the 'Distress Zone' (high probability of corporate bankruptcy within 2 years); 1.81 <= Z <= 2.99 indicates the 'Grey Zone'; Z > 2.99 indicates the 'Safe Zone'.[ CORRECT ]
[ B ]Z < 50 indicates safe; Z > 50 indicates distress.
[ C ]Altman Z-Score evaluates personal fitness of corporate executives.
[ D ]All companies with Z > 0 are 100% immune from bankruptcy.
Takeaway

Option A is correct: Z < 1.81 indicates the 'Distress Zone' (high probability of corporate bankruptcy within 2 years); 1.81 <= Z <= 2.99 indicates the 'Grey Zone'; Z > 2.99 indicates the 'Safe Zone'.

Derivation
Altman's Z-Score combines several weighted financial ratios drawn from a firm's balance sheet and income statement into one composite score, empirically calibrated using the formula Z = 1.2(X1) + 1.4(X2) + 3.3(X3) + 0.6(X4) + 0.999(X5), against companies that did and didn't go bankrupt. A score below 1.81 places a firm in the Distress Zone, statistically associated with high bankruptcy likelihood within roughly two years. Between 1.81 and 2.99 sits the Grey Zone, where the model cannot confidently classify the firm and further qualitative credit analysis is warranted. Above 2.99 is the Safe Zone, though even that offers a statistical association, not an absolute guarantee.
Why the others fail
B — Z < 50 indicates safe; Z > 50 indicates distress.
Altman's actual empirical cutoffs are 1.81 and 2.99 for manufacturing firms, not 50; a score of 50 has no meaning under the standard Z-Score scale.
C — Altman Z-Score evaluates personal fitness of corporate executives.
The Altman Z-Score is a financial credit-risk model built from balance sheet and income statement ratios; it has nothing to do with personal physical fitness.
D — All companies with Z > 0 are 100% immune from bankruptcy.
A Z-Score between 1.81 and 2.99 sits in the Grey Zone carrying real default risk; a positive score alone does not confer complete immunity from bankruptcy.