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Issuer Credit Research

Issuer Flash: HDFC Bank Limited

Issuer: Hdfc Bank | Document: Issuer Flash | Date: 2026-10-20 | Event: Q2 Fy2027

Report date: 2026-10-20 Event date: 2026-10-17 Event title: Q2 FY2027 Results

1. Flash Conclusion

HDFC Bank's Q2 FY2027 results preserve the stable credit view in the May issuer summary. The Indian private-sector bank continues to fund its post-HDFC Ltd merger loan book through a large deposit franchise, while earnings, asset quality and capital support senior creditors. Deposits grew 18.8% year on year, ahead of advances under management (AUM) growth of 15.3%, and gross non-performing assets (GNPA) declined to 1.11% of gross advances. These are constructive developments, but they do not demonstrate that the post-merger adjustment is complete.

Funding economics remain the main weakness in the result. The current and savings account (CASA) ratio fell to 31.6%, net interest margin (NIM) on total assets declined another 10bp to 3.16%, and borrowings increased sequentially. Capital and liquidity also eased: CET1 was 17.1%, total capital adequacy 18.9%, average liquidity coverage ratio (LCR) 113% and net stable funding ratio (NSFR) 118%. The figures still support resilience, while making the pace and composition of further growth more important. This quarter alone does not change the core credit view or remove subordinated instruments' distinct loss-absorption risks.

2. Deposit Growth Improves Funding Volumes, While Margins Remain Under Pressure

The results released on 17 October cover the quarter and half year ended 30 September 2026. Unless stated otherwise, figures below are standalone Indian GAAP bank figures. Quarterly net interest income increased 9.7% year on year and 3.2% sequentially to INR346.2bn. Profit after tax (PAT) increased 4.7% year on year to INR195.1bn; the issuer separately reports 12.6% growth in PAT excluding treasury trading gains. Treasury gains fell to INR7.8bn from INR23.9bn a year earlier, explaining why reported profit growth understates the improvement on that adjusted basis. Neither comparison should obscure the continuing margin decline.

End-period deposits reached INR33,274bn, while AUM reached INR33,074bn. In averages: average deposits grew 16.8% year on year against 14.1% for average AUM. This supports funding capacity beyond a period-end comparison. It is not a one-for-one asset-funding match, since deposits also fund investments and other assets and AUM includes transferred loans.

The mix is less favorable. Term deposits grew 22.8% year on year against 10.8% for CASA, lowering the CASA ratio from 32.3% in June. The average retail-branch share of deposits remained 80%, which provides some evidence of franchise continuity, but does not establish the ticket-size granularity or marginal cost of incremental deposits. The disclosed cost of funds, which includes shareholders' funds, stayed at 4.4%; yield on assets eased to 7.6% from 7.7%. NIM fell to 3.16% on total assets and 3.32% on interest-earning assets. Deposit access therefore remains a strength, while cheaper funding and margin normalization remain unproven.

Borrowings were INR4,890bn, below INR5,096bn a year earlier but above INR4,618bn in June. This sequential reversal qualifies the earlier deposit-substitution narrative. Total borrowings do not isolate legacy HDFC Ltd debt, so the result cannot establish the precise runoff or refinancing cost of that debt. The credit test remains whether durable deposit funding and lower funding costs eventually improve recurring earnings without requiring greater asset risk.

3. Better Slippage Flows, With Some Consumption of Capital and Liquidity Buffers

GNPA improved to 1.11% from 1.17% in June, net NPA to 0.37% from 0.41%, and GNPA excluding agriculture to 0.87% from 0.91%. The ratio improvement should be read alongside the stock: gross NPAs remained approximately INR358bn as loan balances expanded. Slippages fell to INR61bn from INR80bn, including a decline in ex-agriculture slippages to INR54bn from INR61bn. Upgrades and recoveries of INR37bn and write-offs of INR24bn offset new slippages. The flow improvement is reassuring, although the headline ratio decline is not equivalent to a reduction in the absolute NPA stock.

Credit cost rose to 0.44% from 0.40%, despite remaining below 0.51% a year earlier. Specific provision coverage improved to 67% from 66%. These figures support continued loss absorption rather than an unqualified conclusion that credit pressure has disappeared. Business Banking grew 28.1% year on year, making new-vintage quality and risk selection relevant monitors. The source-defined non-mortgage Retail Assets category should not be mistaken for total retail advances or broad unsecured-lending acceleration: the quarter includes INR548bn of FCNR leverage loans, excluding which retail-assets growth was 9.1% year on year and 4.3% sequentially. Growth rates alone do not establish looser underwriting.

CET1 eased 30bp sequentially to 17.1%, total capital adequacy fell 70bp to 18.9%, and return on assets was 1.78%. Total capital remained 700bp above the disclosed 11.9% requirement. Risk-weighted assets were INR31,793bn, while the presentation's risk-weight density measure remained 69%, unchanged from June. There is no complete capital-movement bridge in the materials used here, so the decline should not be attributed entirely to risk appetite or a single capital action. The relevant forward test is whether retained earnings keep pace with risk-weighted growth.

Average LCR declined from 115% to 113%, and NSFR from 119% to 118%. Both remain above 100%, but the quarter provides less liquidity headroom than June. For senior creditors, the combination of earnings, low NPA ratios and substantial capital still provides a meaningful cushion against normal volatility. Tier 2 and AT1 instruments remain exposed to their distinct subordination and regulatory loss-absorption terms; these results do not remove write-down, coupon or call-extension risks where applicable. Individual security terms and current ratings require separate confirmation.

4. Key Numbers

Standalone metric Q2 FY2027 Q1 FY2027 Credit significance
NII / reported PAT (INR bn) 346.2 / 195.1 335.3 / 190.6 Earnings grow despite lower margins.
NIM, total assets 3.16% 3.26% Funding economics have not normalized.
End-period deposits / AUM (INR bn) 33,274 / 33,074 31,708 / 31,272 Deposit volumes support balance-sheet expansion.
CASA ratio 31.6% 32.3% Low-cost deposit mix weakens further.
Borrowings (INR bn) 4,890 4,618 Sequential increase qualifies deposit substitution.
GNPA / net NPA 1.11% / 0.37% 1.17% / 0.41% Better ratios; gross NPA stock broadly unchanged.
Credit cost 0.44% 0.40% Modest sequential increase despite lower slippages.
Total CAR / CET1 18.9% / 17.1% 19.6% / 17.4% Substantial but lower capital buffers.
Average LCR / NSFR 113% / 118% 115% / 119% Liquidity remains above 100%, with less headroom.

Source: HDFC Bank Q2 FY2027 press release, earnings presentation and key parameters, 17 October 2026. AUM means advances under management, including the specified transferred-loan adjustments; it is not identical to gross advances.

5. What To Watch Next

The next results should test whether average deposit growth stays ahead of average AUM growth while CASA, funding cost and NIM stabilize. A further rise in borrowings alongside weaker deposit mix would need explanation even if headline deposits continue growing. Updated legacy-debt maturities and incremental deposit granularity remain unconfirmed in this analysis.

The September additional discussion's funding, underwriting and capital questions remain useful, but its numerical warning lines are discussion constructs, not management guidance or rating triggers. This quarter supplies new evidence on those questions without settling them: deposit volumes strengthen, margins weaken, slippage flows improve and capital ratios decline. Product-level delinquencies, cure rates, new-vintage performance and a full capital bridge remain next checks, particularly for Business Banking and retail growth. The discussion's wider ratings and management-continuity issues require separate source verification in a future comprehensive review. Current agency ratings, instrument documentation and matched bond-spread data were not rechecked; no security-specific relative-value conclusion is made.

6. Sources