SBI NIM Squeeze Hits PSU Banks Hard in May

SBI's Q4 Miss Sends PSU Bank Index Down 3% [State Bank of India](/stock/SBIN) (NSE: SBIN) dropped 6.6% on May 9 after Q4 FY26 net profit came in below analyst consensus, with Net Interest Margins contracting quarter-on-quarter. The NIM squeeze — the single most watched metric for bank profitability — is the core problem here. When India's largest lender by assets starts showing margin pressure, the market doesn't wait to see if peers are different. The Nifty PSU Bank index fell 3.06% in response, its sharpest single-session drop in over two months. That's a sector-wide repricing, not a stock-specific reaction. Investors are now asking whether SBIN's NIM compression is idiosyncratic or a preview of what BANKBARODA, PNB, and others will report in the coming weeks. Adding pressure: SBI's executive committee is scheduled to meet May 12 to consider raising up to $2 billion via foreign currency bonds. On the surface, this is routine liability management. In context, it lands as a signal that the bank wants to diversify its funding base — possibly because domestic deposit costs are rising faster than management would like. How the Contagion Spread to Private Banks [HDFC Bank](/stock/HDFCBANK) (NSE: HDFCBANK), [ICICI Bank](/stock/ICICIBANK) (NSE: ICICIBANK), and [Axis Bank](/stock/AXISBANK) (NSE: AXISBANK) all declined in sympathy. HDFC Bank shed roughly 1.8%, ICICI Bank fell 1.4%, and Axis Bank dropped close to 2.1% on the day. These are private sector banks with structurally different deposit franchises than SBI, but the market isn't being surgical right now. The logic isn't irrational. If the Reserve Bank of India's rate trajectory continues to pressure lending yields while deposit repricing lags, every bank with significant floating-rate loan books faces a version of this problem. SBI just made it visible first. [Bank of Baroda](/stock/BANKBARODA) (NSE: BANKBARODA) and [Punjab National Bank](/stock/PNB) (NSE: PNB) are the two PSU names most exposed if the NIM comp...