The RBI raised rates. Deposit franchises will decide who benefits

Repo rate5.50%RBI decision on 7 October
Increase25 basis pointsFrom the previous policy rate

The Reserve Bank of India raised the repo rate by 25 basis points to 5.50% on 7 October and adopted a stance of calibrated tightening. The decision immediately changed the earnings equation for listed banks.

The mechanical effect is favourable at first. Loans linked to external benchmarks reset as the repo rate changes, while much of a bank’s deposit book reprices only when deposits mature or administered rates are revised. That timing gap can lift net interest margins. It does not last automatically.

The rate increase is best read as a test of bank funding, not as an automatic earnings windfall. Floating-rate loans can reprice quickly, but deposits reprice when customers demand compensation or move their money. Banks with abundant low-cost deposits have more room to retain the benefit. Lenders already paying aggressively for funds have less. The policy therefore widens the difference between deposit franchises, even though every bank faces the same benchmark rate.

The first repricing was easy. The harder test is whether deposit costs follow before loan growth absorbs the increase.

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Untitled.“Untitled” by Gentlemen in Business and Politics, via flickr, Public Domain Mark 1.0

Banks passed the increase through within a day

Karur Vysya Bank benchmark8.80%After a 25-basis-point increase
Indian Overseas Bank benchmark8.35%After a 25-basis-point increase
Punjab National Bank benchmark8.35%Effective 8 October

Karur Vysya Bank raised its external benchmark repo-linked lending rate to 8.80% from 8.55%. Indian Overseas Bank increased its rate to 8.35% from 8.10%, while Punjab National Bank raised its benchmark to 8.35% from 8.10%, effective 8 October.

That rapid repricing matters because it preserves the link between policy rates and loan yields. It also makes the next stage more important. Borrowers see the higher rate immediately. Depositors will decide how much of it banks keep.

The speed of transmission shows that listed banks are protecting asset yields. It says nothing yet about the eventual spread between those yields and funding costs. The decisive disclosures will be deposit growth, the share of low-cost current and savings accounts, and the cost of incremental term deposits. A 25-basis-point lending-rate increase can disappear from margins if deposits require similar compensation.

The counter-case is simple: loan yields reset first

Nifty 50 close22,603.05After the RBI decision on 7 October
Nifty 50 changeDown 0.76%Reuters-reported session move

The case against this argument is that higher policy rates can support bank earnings before they damage them. External-benchmark loans reprice quickly, and the first announced lending-rate changes matched the RBI’s 25-basis-point increase. If deposit rates lag, net interest income receives a direct benefit.

The equity market’s initial response does not settle the issue. The Nifty 50 fell 0.76% to 22,603.05 after the decision, but that broad move included non-bank companies and other pressures. It cannot be read as a clean verdict on bank profitability.

This is the strongest case against treating the decision primarily as a funding test. It is credible. Asset repricing is visible and immediate, while higher deposit costs may arrive with a lag. Yet the argument becomes weaker if customers demand better term-deposit rates or if higher borrowing costs restrain fresh credit demand. The initial margin gain is real; its persistence is not. That is why the policy change should increase valuation dispersion across banks rather than improve the sector uniformly.

The next results must show the price of deposits

Immediate pass-through25 basis pointsObserved at three listed banks in reported benchmark-rate changes
Effective date at PNB8 October 2026One day after the RBI decision

The policy decision will not affect every listed lender equally. Banks with stronger retail deposit franchises can allow loan yields to reset while repricing liabilities more selectively. Banks dependent on wholesale funding or high-cost term deposits face a narrower window.

Reported benchmark changes from Karur Vysya Bank, Indian Overseas Bank and Punjab National Bank establish the asset-side response. They do not establish the earnings outcome. That will emerge through funding costs, deposit composition and credit growth in subsequent disclosures.

The rate rise therefore changes what investors should measure. Headline loan growth will be less informative without the price paid for deposits supporting it. A bank can defend growth by bidding for term money, but that may surrender the benefit of higher loan yields. It can defend margins by refusing expensive funding, but that may constrain lending. The argument rests on one question: which listed banks can retain deposits without paying away the RBI’s 25-basis-point increase?

Sources

  • Reuters, 8 October 2026, Indian shares poised for muted start, TCS kicks off earnings season: https://www.reuters.com/world/india/indian-shares-poised-muted-start-tcs-kicks-off-earnings-season-2026-10-08/
  • The Hindu BusinessLine, 8 October 2026, Stock Market Today Live: https://www.thehindubusinessline.com/markets/sensex-nifty50-today-stock-market-live-updates-8th-october-2026/article71556978.ece
  • Moneycontrol, 8 October 2026, Stocks to Watch Today: https://www.moneycontrol.com/news/business/markets/stocks-to-watch-today-godrej-properties-tata-power-rpp-infra-everestims-tech-vishal-nirmiti-ask-automotive-jubilant-foodworks-senco-gold-in-focus-on-08-october-14047112.html
  • NewsBytes, 8 October 2026, RBI raises repo rate to 5.5% as Indian markets fall: https://www.newsbytesapp.com/news/business