For HDFC Bank, the CASA ratio declined to 40.7 per cent in Q3 (weakest in recent quarters) as against 44 per cent last year. According to the bank, there was movement of deposits from savings accounts to term deposits, though Suresh Ganapathy of Macquarie Capital notes that it led to a 25 bps sequential decline in NIM.
For investors, the key takeaway is that the days of brisk margin expansion for private banks may be well behind them as they once again chase retail customers to shore up deposits.
Further, analysts at CLSA said the ability of banks to grow their loan assets from now on, will hinge on their ability to add to deposits. “The key risk to loan growth will originate from slower expansion in deposit base, which is seeing a 10 per cent rise YoY versus 15 per cent growth in domestic credit YoY. A structural pick-up in deposit growth will be needed through higher rates, reduction of currency in circulation and expansion of branch network to strengthen deposit base,” they added.