Credit Growth Decomposition
Credit growth decomposition breaks down aggregate bank lending growth into its constituent segments — retail versus corporate, secured versus unsecured, and public sector versus private sector banks — to understand the quality, sustainability, and risk profile of the overall credit expansion.
RBI publishes sectoral deployment of credit data monthly, allowing analysts to decompose aggregate system-level credit growth into granular segments. In India, the post-COVID credit cycle of FY22 to FY25 was overwhelmingly retail-led, with personal loans — particularly unsecured personal loans, credit cards, and consumer durables — growing at 25-30% year-on-year at their peak, far outpacing the 8-12% growth in corporate credit.
The retail versus corporate split matters because the risk profiles are fundamentally different. Retail credit, while diversified across millions of borrowers, carries higher probability of default during economic stress and is more sensitive to employment and income shocks. Corporate credit, dominated by large investment-grade borrowers, tends to be more stable in aggregate but can produce large NPA lumps when individual large accounts turn bad — as seen during the infrastructure and power sector NPA cycle of 2012-18.
Within retail, the secured versus unsecured split is critical. Secured retail credit — home loans, loan against property, auto loans — carries a hard asset as collateral, with historical loss given default of 10-20%. Unsecured retail credit — personal loans, credit cards, buy-now-pay-later — has no collateral buffer, and loss rates are 2-4x higher in stress scenarios. RBI's November 2023 circular, which raised risk weights on unsecured consumer credit and bank credit to NBFCs by 25 percentage points, was a direct policy response to the rapid unsecured loan growth that RBI deemed a potential systemic concern.
The NBFC versus bank split is another dimension. Banks lend directly and also lend to NBFCs, which on-lend to end borrowers. This layered credit chain means aggregate credit growth understates or double-counts exposure. RBI tracks bank credit to NBFCs separately, and periods of rapid NBFC credit growth — as in FY18-19 — can mask the true end-use of credit.
For investors, understanding credit growth decomposition helps assess whether growth is sustainable (retail mortgage growth driven by housing demand is structurally sound) or speculative (rapid unsecured personal loan growth to fund consumption can reverse sharply in a downturn). Banks with higher shares of secured, diversified retail credit tend to have more stable asset quality through cycles compared to those with concentrated corporate or unsecured retail books.