MUMBAI — HDFC Bank earned INR 19,060 crore in net profit in the first quarter of FY27. The number beat no one. What the result actually showed was a lender with 15.4% loan growth, a 7% rise in net interest income, and a net interest margin that slipped to 3.26%, its lowest on record. The margin is where the story lives.
The Nifty Financial Services Index closed at 26,013 on August 19, down 0.36% on the day and essentially flat for the month. Against the Nifty 50’s 12.4% year-to-date gain, the financial services index has delivered roughly 8% over the same period. The underperformance is not a story about weak fundamentals. It is a story about what the rate-cut cycle does to lenders on the way down.
| Stock / Index | Index Weight | Q1 FY27 Key Metric | YTD Return |
|---|---|---|---|
| HDFC Bank | 25.94% | NIM 3.26% (record low), advances +15.4% | +9.1% |
| ICICI Bank | 18.96% | NIM stable; ROE above 18% | +14.3% |
| State Bank of India | 9.79% | Credit growth 14% YoY | +6.8% |
| Axis Bank | 8.68% | NIM under pressure post-merger adjustments | +7.2% |
| Bajaj Finance | 6.63% | AUM +24% YoY; Nomura and Jefferies Buy | +21.4% |
| Nifty Financial Services | Index | 26,013 (Aug 19 close) | +8.2% YTD |
The mechanics are straightforward. When the Reserve Bank of India cuts the repo rate, banks must reprice their floating-rate loan books downward almost immediately. The deposits that fund those loans reprice much more slowly, because fixed deposits lock in rates at origination and roll over on maturity schedules that can stretch twelve to thirty-six months. The result is a transient margin squeeze that compresses NIM in the first two to four quarters of any easing cycle before deposit costs eventually follow loan yields lower.
For HDFC Bank, that squeeze is already visible at 3.26%. The bank’s gross advances grew to INR 30.61 trillion as of June 30, a 15.4% year-on-year increase that would be the envy of almost any large global lender. Credit demand in India is structurally high: total bank credit has crossed INR 200 lakh crore for the first time, and the loan-to-GDP ratio remains well below the levels of more developed economies. The credit story is not in doubt. The margin story is.
ICICI Bank has managed the same rate environment with more margin resilience, in part because its deposit mix is better diversified and its retail loan book carries higher yields than HDFC Bank’s traditionally more corporate-skewed portfolio. ICICI’s return on equity has stayed above 18%, giving it a higher multiple than its larger peer. The market has noticed: ICICI has returned 14.3% year-to-date, comfortably ahead of HDFC Bank’s 9.1%. The gap between the two largest private sector banks has widened in 2026 for the same reason it narrowed in 2023, which is that HDFC Bank’s merger integration with HDFC Limited created a period of elevated cost-to-income and deposit repricing risk that is taking longer to resolve than the market initially expected.
Bajaj Finance is the outlier in the index. The consumer lending giant reported assets under management growth of 24% year-on-year as of June 30, 2026, and both Nomura and Jefferies initiated or reaffirmed Buy ratings in August. The thesis is different from the banking thesis: Bajaj Finance charges yields well above the repo rate, lends primarily to prime retail borrowers in consumer durables, personal loans, and mortgage-adjacent products, and has a cost of funds that benefits from the same rate cuts that squeeze bank NIMs. A 50-basis-point repo rate cut translates into a wider spread for an NBFC that borrows short and prices products at fixed rates. Bajaj Finance is essentially long the rate-cut trade in a way that the major banks are not.
The structural backdrop for India’s financial sector remains intact. The Reserve Bank of India’s Scale-Based Regulation framework, introduced in October 2023, has tightened capital requirements and underwriting standards for NBFCs, creating a period of credit growth moderation that is now resolving. India’s credit-to-GDP ratio leaves room for a decade of above-GDP credit growth without systemic stress at the current pace. What is not clear is the specific quarter in which HDFC Bank’s deposit repricing finally catches up to its loan repricing and NIM begins to recover.
The same rate cut that gives real estate stocks a tailwind has a direct NIM cost for the banks underwriting the home loans. The property market and the banking sector are two sides of the same monetary policy decision, and they are not rewarded equally in the short run. Realty stocks have outpaced financial services stocks by roughly ten percentage points year-to-date, precisely because the rate-cut trade flows immediately into asset values on the borrower side and only gradually into margin recovery on the lender side.
The infrastructure financing pipeline from NTPC and Adani Green represents a large and growing share of project finance disbursements for SBI and Bank of Baroda, the two public sector lenders with the most exposure to long-tenor infrastructure loans. Power sector lending carries lower credit risk than retail lending but thinner margins and longer asset durations, which creates its own interest rate sensitivity.
What the Nifty Financial Services index will need to close the gap with the broader market is a visible inflection in HDFC Bank’s NIM trajectory. That inflection depends on fixed deposit maturities rolling off at higher legacy rates and being replaced at current market rates, a process that runs at the pace of the deposit book’s maturity schedule, not the pace of the repo rate announcement. The market cannot see that schedule directly. It can only infer it from quarterly NIM prints.
Bajaj Finance does not have that problem. Whether the gap between the NBFC and the banks narrows or widens over the next two quarters is, for now, the most important unresolved question in the Nifty Financial Services index.
