NSE IPO 2026: DRHP Filed for Up to 149m Shares

NSE takes the formal IPO step with SEBI filing

The National Stock Exchange of India Ltd (NSE) has filed its draft red herring prospectus (DRHP) with the Securities and Exchange Board of India (SEBI), according to a public filing submitted to the regulator. The filing moves forward one of India’s most tracked potential listings, after years of market anticipation. Multiple reports on June 17, 2026, also described the DRHP filing as “today”, placing the submission date at June 17, 2026. The exchange’s IPO is described as a long-awaited event for Indian capital markets, given NSE’s role as the country’s dominant exchange operator.

The offer structure and the size expectations have been reported in several ways across publications, but a consistent element is that the transaction is designed as an offer for sale (OFS). That means proceeds are expected to go to selling shareholders, not to NSE, since no new shares are being issued in a fresh issue.

IPO structure: a pure offer for sale with no fresh issue

The DRHP indicates the share sale consists entirely of an OFS by existing institutional shareholders. One version of the offer size described it as an OFS of up to 149 million equity shares. The same report pegged an estimated valuation of ₹29,780 crore (about $1 billion) based on indicative grey market prices, with the stock said to be trading at at least ₹2,000 a share in the unlisted market.

Other reports around the same filing date described a larger potential transaction size in rupee terms. These reports said the IPO could be ₹30,000 crore to ₹32,000 crore, with around 6% of NSE’s equity offered, and valuation estimates referenced at over ₹5 lakh crore (₹500,000 crore). Another set of reports put the likely IPO size in the ₹21,000 crore to ₹25,000 crore range, with 4% to 5% equity dilution, and an implied valuation range of ₹4.7 lakh crore to ₹6 lakh crore (₹470,000 crore to ₹600,000 crore).

Who is selling and what dilution is being discussed

Across reports, the proposed IPO is positioned as shareholders selling down a minority stake. The most frequently cited dilution figure is around 6% of NSE’s equity, while another report band suggested 4% to 5%. A separate line also said about 111 million shares could be offered for sale, reflecting that final numbers may depend on the final prospectus and the eventual offer configuration.

One report said major PSU and institutional shareholders are expected to dilute part of their holdings, while Life Insurance Corporation of India (LIC) is unlikely to sell its stake. Another report said more than a dozen major institutional and corporate investors may sell shares, while LIC may hold on.

Lead bankers and process milestones

The IPO syndicate is reported to include 20 investment bankers. Kotak Mahindra Capital Co. and Morgan Stanley India Co. are among the book-running lead managers named in the reporting.

On the process side, the draft filing triggers SEBI’s review cycle. One report said SEBI’s review and final observations typically take 30 to 90 days. After regulatory observations, NSE is expected to file the final prospectus with the Registrar of Companies (RoC) to finalise the price band and bidding dates.

Timelines being discussed: review period and potential launch window

Reports offered different expectations on the public timeline after the DRHP. A commonly stated sequence is SEBI review followed by a final prospectus and the finalisation of price band and issue dates. One report suggested an IPO launch window between Navratri and Diwali, or October to November 2026. Another said NSE is targeting a listing before December 2026.

While timelines can change depending on the regulator’s observations and the company’s readiness, the reported schedule anchors the next key step to SEBI’s processing of the draft.

What the unlisted market is signalling

Unlisted market trades and grey market indicators were repeatedly referenced in the reporting as context for valuation discussions. One report said NSE shares trade in the unlisted market around ₹1,950 to ₹2,050 each, and another said the stock trades at at least ₹2,000 a share. Based on these indicators, market participants were cited estimating valuation at around ₹5 lakh crore (₹500,000 crore).

Separately, one report referenced an expected valuation of ₹5.14 trillion, which equals ₹514,000 crore, and contrasted it with BSE’s market capitalisation of ₹1.65 trillion, or ₹165,000 crore. These numbers were presented as comparative valuation context rather than final IPO pricing.

Market reaction: BSE stock slips on the NSE IPO development

The IPO development had an immediate read-through for listed peer BSE Ltd. One report said BSE snapped a three-day gaining streak on June 17 and was trading 3.5% lower as NSE was expected to file the DRHP. Another report pegged the fall at about 4.26% to ₹3,985, with a day low of ₹3,977.30 on June 17, 2026.

The reporting framed the move as investors reacting to the potential listing of the larger peer, which could change competitive dynamics and investor attention within the exchange sector.

Background: the long runway since 2016

One report described the NSE IPO as “a decade in the making” after an original December 2016 filing was shelved, linking the delay to the co-location scandal. Recent steps cited in reporting include an IPO committee meeting to conclude the process before filing, and a board clearance of the DRHP earlier in the week. Another report noted NSE received SEBI’s no-objection certificate on January 30, 2026, and board approval for the IPO on February 6, 2026.

This sequencing is important because it highlights that the June 2026 DRHP filing follows multiple internal and regulatory readiness steps.

Key facts at a glance

Why the structure matters for investors

Because the IPO is structured as a pure OFS, the transaction does not raise new capital for NSE. That distinction matters for how investors interpret the listing: the offer is primarily a liquidity event for existing shareholders and a step toward public market price discovery. It also means the final size can be described either by the number of shares sold (such as up to 149 million) or by the rupee value of the shares sold (such as ₹21,000-32,000 crore), depending on the final price and the eventual offer details.

The range of reported valuation markers reflects varying methods: unlisted market pricing, grey market indicators, and implied valuations derived from estimated issue size and stake dilution. Investors typically wait for the final prospectus and price band to reconcile these into a single, definitive valuation benchmark.

Conclusion: next steps hinge on SEBI observations

NSE’s DRHP filing with SEBI is the central milestone that starts the formal regulatory review for the IPO. Reports consistently describe the offer as a pure OFS, with multiple estimates for issue size and dilution depending on the final structure and pricing. The next confirmed step is SEBI’s review and issuance of observations, after which NSE can file the final prospectus with the RoC to set the price band and bidding dates. Reported timelines point to an October to November 2026 launch window and a listing targeted before December 2026, subject to regulatory clearance.