ICICI Bank is rapidly closing the gap on HDFC Bank to become the most influential stock in the Nifty 50 index, a shift driven by diverging market trends. As of August 31, HDFC Bank's weight in the Nifty was approximately 9.85%, while ICICI Bank's stood at 9.45%. This 0.4 percentage point difference marks the narrowest gap between the two since at least January 2010. HDFC Bank's Nifty weight has fallen significantly from 12.7% at the end of December 2025, with its stock declining around 28% in 2026. Conversely, ICICI Bank's weight has increased by 1.4 percentage points, from 8.05% to 9.45% during the same period.
The market capitalization gap between the two private lenders has also dramatically shrunk to just ₹49,167 crore. This marks a substantial reduction from ₹4.17 lakh crore before the abrupt exit of HDFC Bank chairman Atanu Chakraborty and a ₹3.68 lakh crore decrease since his departure in March. HDFC Bank is currently valued at ₹10,92,648 crore, while ICICI Bank is valued at ₹10,43,481 crore, placing HDFC Bank just 4.5% ahead, the closest margin in over a decade. This narrowing has been exacerbated by HDFC Bank's managing director and CEO, Sashidhar Jagdishan, deciding not to seek a third term, further contributing to investor concerns.
Brokerages have expressed apprehension regarding HDFC Bank's leadership transition following Jagdishan's departure, whose term ends on October 26, 2026. Jefferies noted that HDFC Bank's board is seeking candidates both internally and externally, warning of potential short-term impacts on business if senior leaders exit. Equirus suggests a higher probability of an external appointment, believing it could improve governance, reset investor perception, and provide a fresh strategic direction for the bank's post-merger path. Meanwhile, ICICI Bank has maintained strong investor interest, contributing to its outperformance and steady narrowing of the gap with HDFC Bank.
