ICICI Bank Q2 Profit Rises 20% on 18% NII Growth; NIM Edges Lower on FCNR(B) Deposits

• ICICI Bank reported a 20% rise in Q2 net profit, supported by an 18% increase in core net interest income (NII).
• Net interest margin (NIM) declined slightly to 4.18%, as FCNR(B) foreign currency deposits weighed on blended funding costs.
• Treasury operations swung to a loss as higher government bond yields impacted the marked-to-market portfolio, partially offsetting the operating strength.
• Core retail and SME loan growth remains robust, with asset quality metrics holding at multi-year best levels despite moderating loan growth in some segments.

ICICI Bank's Q2 results confirm its position as the benchmark private sector bank in India, with 20% profit growth in a quarter marked by some non-recurring headwinds. The 18% NII growth on a large base is the most important operational metric — it reflects the bank's successful navigation of the margin compression environment that has affected the sector as wholesale funding rates have risen. ICICI's funding mix, with strong low-cost CASA deposits and disciplined growth in high-margin retail loans, is the structural source of its NIM resilience relative to peers.

The NIM decline to 4.18% from a higher base in Q1 is primarily attributable to FCNR(B) deposits — foreign currency non-resident (bank) deposits that are included in the funding base but carry lower spreads than domestic deposits. FCNR(B) deposit flows into India typically surge when the rupee is under pressure, providing banks with foreign currency liquidity at below-domestic pricing. This is a mechanical NIM drag rather than a competitive deterioration, and investors will be watching for NIM recovery in Q3 as the FCNR(B) base effect normalises.

The treasury swing to a loss is a sector-wide phenomenon driven by the rise in government bond yields during Q2. Banks holding HtM (held-to-maturity) classified government securities are insulated from mark-to-market losses, but AFS (available-for-sale) portfolios take visible losses when yields move higher. ICICI's treasury loss in Q2 is likely a timing issue — if yields normalise or decline in H2, treasury gains would reverse the current quarter's charge. For valuation purposes, analysts typically strip out treasury P&L for core bank profitability assessment, and on that basis ICICI's Q2 is a strong result.