NSE Mega IPO Subscribed 36% on Day 1 as Grey Market Signals Measured Listing Gains

The primary market witnessed one of the most anticipated events in Indian corporate history as the initial public offering (IPO) of the National Stock Exchange of India (NSE) opened for public subscription on September 17, 2026. The Rs 22,562-crore issue saw a measured start on Day 1, achieving an overall subscription of 36% (0.36 times) by late afternoon bidding.

The public offer, which is priced in the band of Rs 1,700 to Rs 1,785 per equity share, will remain open until Monday, September 21, 2026. With shares scheduled to list on rival bourse BSE on September 24, the transaction values the exchange at approximately Rs 4.42 lakh crore ($46 billion) at the upper end of the price corridor.

Day 1 Bidding Breakdown

Bidding patterns showed active participation from non-institutional and retail investors, while qualified institutional buyers maintained their customary pattern of waiting until the final day.

Subscription Status Across Categories:

• Non-Institutional Investors (NIIs): The high-net-worth individual quota was subscribed 0.54 times (54%).
• Retail Individual Investors (RIIs): The retail portion received bids for 0.38 times (38%) the shares on offer.
• Employee Reservation: Employees bid actively, subscribing 0.83 times (83%) of their reserved quota, supported by a Rs 170-per-share discount.
• Qualified Institutional Buyers (QIBs): The institutional quota stood subscribed at 0.18 times (18%).

Issue Structure and Seller Windfalls

The public offering consists entirely of an offer for sale (OFS) of 12.64 crore equity shares from 23 existing shareholders, meaning NSE will not receive any proceeds from the fundraise.

State Bank of India (SBI) is offloading up to 1.59 crore equity shares, securing an extraordinary windfall. Having acquired the shares at an average weighted cost of just 80 paise apiece, SBI stands to pocket nearly Rs 2,850 crore at the upper end of the price band, booking returns exceeding 223,000%. Other major selling entities include Bank of Baroda, Canada Pension Plan Investment Board (CPPIB), Aranda Investments, and public sector general insurers.

Prior to the public rollout, the exchange raised Rs 6,746.18 crore from marquee anchor investors, allocating 3.78 crore equity shares at Rs 1,785 each. The anchor book witnessed aggressive institutional demand, receiving bids worth nearly Rs 1.2 lakh crore—an oversubscription of nearly 20 times.

Grey Market Premium and Valuation Metrics

In the unofficial grey market, NSE shares were commanding a premium (GMP) between Rs 125 and Rs 140 per share. This implies an expected listing price of Rs 1,910 to Rs 1,925, translating to a listing gain of approximately 7% to 8% above the upper price band. Although the premium has cooled from earlier highs above Rs 300, analysts view the current level as indicative of stable, non-speculative appetite.

From a valuation perspective, the upper band pegs NSE at an FY26 price-to-earnings (P/E) multiple of approximately 42.9 times. This places the bourse at an estimated 21% valuation discount relative to its publicly traded peer BSE, which trades near 54 times earnings, prompting several domestic brokerages to issue positive recommendations on the issue.

Tags: National Stock Exchange BSE SEBI State Bank of India Financial Exchanges IPO