Wed Dec 03 04:30:00 UTC 2025: Okay, here’s a news article summarizing the provided text about the NSE’s new guidelines for stock weightage in indices, focusing on the impact on Nifty Bank:
Headline: NSE to Reduce Weightage of Top Stocks in Nifty Bank, HDFC Bank and ICICI Bank to See Significant Adjustments
Mumbai: The National Stock Exchange (NSE) has finalized guidelines to adjust stock weightage in its indices, particularly impacting the Nifty Bank index. The move, announced on December 1st, comes in response to directives from market regulator SEBI (Securities and Exchange Board of India) aimed at reducing the concentration of a few stocks within indices that have futures contracts.
The new guidelines stipulate that the top three stocks in any index will now have maximum weightages of 19%, 14%, and 10%, respectively. This will significantly affect the Nifty Bank index, which comprises 12 leading banking stocks.
The weightage adjustments will be implemented in four phases, beginning later this month. HDFC Bank and ICICI Bank, currently holding substantial weightage in the Nifty Bank index, will see their weightage gradually reduced. According to Nuwama Alternative and Quantitative Research, HDFC Bank’s weightage will decrease from 27.5% to 18.9% in stages, and ICICI Bank’s will decline from 23.1% to 14%. Conversely, State Bank of India (SBI) is expected to see its weightage increase from 9.4% to 10%.
Furthermore, the NSE will increase the number of stocks in the Nifty Bank index from 12 to 14. Market analysts anticipate the inclusion of Yes Bank and Union Bank of India in the index. These changes are slated to take effect after market close on December 30th.
Analysts estimate that the weightage reductions for HDFC Bank and ICICI Bank could amount to approximately $33 million each. The current constituents of the Nifty Bank index are HDFC Bank, ICICI Bank, Axis Bank, SBI, Kotak Mahindra Bank, AU Bank, IndusInd Bank, Federal Bank, IDFC First Bank, Punjab National Bank (PNB), Canara Bank, and Bank of Baroda (BoB).
Current market activity shows mixed performance among the Nifty Bank constituents, with HDFC Bank, ICICI Bank, and Axis Bank trading in the red, while the remaining stocks are experiencing positive momentum, with gains of up to 2%.
Disclaimer: Investment decisions should be based on consultation with a certified expert. The information provided here is for news and informational purposes only and does not constitute financial advice.
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