The State Bank of India (SBI) experienced a significant market value loss of over $11 billion in just two trading sessions, attributed to a disappointing earnings report and narrowing net interest margins. On Monday, SBI's shares dropped 4.5% to a year-to-date low of 973.60 rupees, following a nearly 7% decline on Friday after the earnings announcement. This selloff has erased SBI's year-to-date gains, leaving the stock down 0.8% in 2026, while the benchmark Nifty 50 index has dropped 8.8%. Analysts noted that SBI's net interest margin fell to 2.8%, compared to 2.98% in the previous quarter, raising concerns about a challenging profitability cycle for Indian banks as rising funding costs impact lending margins. Despite these challenges, SBI's asset quality remains a positive aspect, with manageable bad loans and credit costs. Analysts maintain a constructive long-term outlook for SBI, citing its strong balance sheet and market leadership.