Here's the thing about PSU banks right now. They're delivering solid business growth, but the market just won't cut them some slack. The NIFTY PSU Bank index dropped about 20% in March 2026, yet banks like Bank of Baroda and Punjab National Bank posted advances growth of 16.23% and 12.97% respectively. Something doesn't add up, and it's worth understanding why.
The story starts with India's 10-year government bond yield crossing 7% in March 2026 and hitting 7.11% by early April. When bond yields rise, bond prices fall, and banks holding these securities in their Available For Sale (AFS) portfolios take immediate mark-to-market losses. These losses flow straight through the profit and loss statement, compressing treasury income and spooking investors.
Punjab National Bank felt this acutely, reporting a ₹400 crore MTM loss in Q3 FY26 alone. Bank of Baroda, with an AFS portfolio of ₹87,143 crore and modified duration of 3.01 years, faces estimated losses of around ₹1,023 crore from the recent yield surge. PSU banks are particularly vulnerable because they hold larger government security portfolios relative to total assets compared to private banks, and they have weaker low-cost deposit franchises to cushion the blow. Transcripts +3
Despite these headwinds, the business fundamentals tell a different story. Bank of Maharashtra emerged as the standout performer with 22% advances growth, the highest among peers. Its disciplined 62:38 ratio of Retail, Agriculture, and MSME (RAM) to Corporate lending, combined with a 4% Net Interest Margin (NIM), shows quality growth. Investors noticed, sending the stock up 4.5% intraday after its Q4 update. Source +1
Bank of Baroda delivered robust numbers too—global business reached ₹30.78 lakh crore with 16.23% advances growth. Yet its stock is down 13.9% year-to-date. Why? Because volume growth has never been BoB's problem. The real concern is margin visibility, and that picture stays unclear until full-year numbers land.
This brings us to the core issue: Net Interest Margins are under pressure. Punjab National Bank is facing significant margin compression with domestic NIM expected at 2.70% and global NIM at 2.60% for FY26. The bank mobilized ₹2,48,000 crore in high-cost retail term deposits at 7.05-7.25%, and these take 3-4 months to reprice. Meanwhile, the 125 basis point repo rate cut requires immediate pass-through to borrowers. That mismatch creates temporary NIM pain, and management expects recovery only from Q1-Q2 FY27 onwards. Transcripts +2
Union Bank of India took a different approach. The bank strategically contracted its treasury portfolio by ₹15,000 crores, shifting funds to better-yielding assets in Retail, MSME, Corporate, and Mid-Corporate segments. This proactive strategy helped maintain NIM at 2.76% despite rate cuts, and investors rewarded it with a 15.6% YTD return—the best among major PSU banks. Transcripts +2
Just when banks needed a break, oil prices surged to $108.5-119.5 per barrel due to Middle East tensions. Higher energy prices impact inflation, widen India's Current Account Deficit, and weigh on consumer spending and corporate profitability. If crude sustains above $100 per barrel, analysts estimate the Nifty could potentially drop 10%. For banks, this means slower credit growth, especially in retail segments like housing and auto loans.
The Reserve Bank of India's directive limiting net open positions in INR to $100 million has added another layer of complexity, potentially reducing treasury flexibility and affecting short-term treasury income.
What's fascinating is how differently the market is pricing similar-looking banks. Central Bank of India posted 18.9% advances growth and improved its ROA from 0.63% to 0.86%, yet the stock is down 10.2% YTD. Valuations appear to be overly discounting bond yield risks while underappreciating the fundamental turnaround. InvestorPresentations +1
On the flip side, Punjab & Sind Bank trades at a TTM P/E of 16.03x—a 70% premium to the sector average of 9.45x—despite being the worst performer with a 17.7% YTD decline. The stock's weak CASA franchise at 30.77% and limited scale advantages don't justify this premium, suggesting either M&A speculation or a classic value trap.
The divergence between business fundamentals and stock performance won't last forever. Banks with clear margin visibility, strong CASA franchises, and proven execution ability like Bank of Maharashtra and Indian Bank are likely to see sustained investor interest. Indian Bank achieved a 3.45% NIM against its 3.1-3.3% guidance, and its conservative 12-13% credit growth approach is being valued appropriately with a 15% YTD return. Transcripts +1
For the laggards, the path forward depends on NIM recovery timelines. If Punjab National Bank can demonstrate margin improvement in FY27 as high-cost deposits reprice, its current valuation at 0.8x book value could prove attractive. Similarly, Bank of Baroda needs to show that its retail focus and deposit growth of 12% can translate into stable margins. Transcripts
The bond yield situation remains the wild card. If yields stabilize around current levels and geopolitical tensions ease, the worst of the MTM losses may be behind us. But if yields climb further or oil prices sustain above $120, the pressure on PSU bank stocks could intensify.
For now, the market is sending a clear message: growth is good, but profitable, sustainable growth is what really matters. Banks that can demonstrate that through strong NIMs, robust deposit franchises, and prudent risk management will eventually see their stock prices reflect their business performance. The others might remain cheap for a reason.
