The account type behind growth
The fastest-growing part of HDFC Bank’s September update is time deposits. They increased 22.8% to 22,755 billion rupees at period-end, while current and savings accounts grew 10.8% to 10,520 billion rupees. Total deposits expanded 18.8%. The bank is gathering more customer funding, with a changing composition. A company-level assessment begins by identifying which accounts supplied the growth before translating deposit expansion into any claim about earnings.[1]
Current and savings balances rose from 9,492 billion rupees a year earlier to 10,520 billion rupees. Time accounts increased from 18,526 billion rupees to 22,755 billion rupees over the same period. Both major deposit groups therefore expanded, with faster-growing time accounts taking a larger place in the total. Growth in funding and the shares of account types answer different questions: the first describes the volume gathered, while the second describes its composition.[1]
Cost assumptions and credit definitions
This mix creates a sensitivity in the earnings calculation. If time accounts cost more than the average current and savings account, a greater time-deposit share could raise average funding cost, with other conditions held equal. The assumption is only a ranking of costs; the update does not provide actual interest rates by account type. An alternative is that the bank can gather additional time funding at attractive rates and offset the change through lending income. Deposit composition alone does not establish that margins narrowed.[1]
Credit definitions also need care when comparing balance-sheet volumes. Gross advances were 32,195 billion rupees and grew 16.3% annually. Advances under management were 33,075 billion rupees and grew 15.3%. The two measures have different levels and growth rates, so the choice of numerator matters when comparing them with deposits. The 18.8% increase in deposits exceeds both credit growth measures, indicating faster funding expansion by volume. This business update does not provide lending yields or final earnings.[1]
From foreign-currency volumes to earnings
Foreign-currency funding is another part of the calculation. HDFC reports raising deposits equivalent to 11.5 billion dollars through the central bank’s FCNR(B) swap facility. It also discloses 5.7 billion dollars of loans against those deposits and 3.1 billion dollars of standby letters of credit. Treating a standby letter of credit as the same cash outflow as a funded loan and subtracting both from deposits would not create a sound cash bridge. These are different financial instruments. The disclosed volumes do not calculate the channel’s net income and costs.[1]
The company question for HDFC is how profitably this larger funding base is deployed. The provisional figures establish volume expansion, with faster time-deposit growth placing funding cost at the centre of the calculation. Deposit costs and lending income in the results awaiting auditors’ limited review would provide an observable test of the assumption. The economic value of stronger deposit growth depends on the price of the funding as well as its quantity. This update supplies the quantities; it does not yet supply the outcome of that pricing calculation.[1]