Altman Z-Score Flags PSU Banks: What It Really Means

Altman Z-Score Puts PSU Banks in the Distress Zone The Altman Z-Score for [Bank of India](/stock/BANKINDIA), [Canara Bank](/stock/CANBK), and [Union Bank of India](/stock/UNIONBANK) sits between 0.36 and 0.37 — well below the 1.81 threshold that Edward Altman's original 1968 model associates with financial distress. On its face, that's an alarming number. In context, it's a structural artifact that tells you more about the model's design than the banks' actual health. The distress flag traces almost entirely to one variable: debt-to-equity ratios exceeding 11x across all three lenders. For a manufacturing company, that ratio signals crisis. For a deposit-funded bank, it's the operating model. Deposits are liabilities. They sit on the balance sheet as debt. The Altman formula, built on corporate bankruptcy data from the 1960s, was never calibrated for institutions that fund themselves through public deposits and operate under Basel III capital adequacy norms set by the Reserve Bank of India. That context matters enormously before any investor reads a Z-Score on a public sector bank and reaches for the sell button. Why the FairStock Score Tells a Different Story FairStock's own scoring framework accounts for sector-specific capital structures. All three banks post FairStock Scores of 81 or above — a reading that places them comfortably in the investable range for fundamentals-focused portfolios. That divergence from the Z-Score isn't a contradiction. It reflects the difference between a general-purpose bankruptcy screener and a model built to evaluate financial institutions on their actual metrics. NSE: BANKINDIA carries a ROCE of approximately 6.8%. NSE: CANBK sits near 7.1%. NSE: UNIONBANK comes in around 6.4%. These aren't exceptional returns on capital, but they're positive, consistent, and improving — a meaningful shift from the near-zero or negative ROCE figures these banks posted during the NPA crisis years of 2018 to 2020. Net NPA ratios across the three...