The Exchange That Waited a Decade to Go Public — Then Couldn't List on Itself

On September 24, shares of the National Stock Exchange of India began trading for the first time. Not on the National Stock Exchange. On BSE, the smaller rival NSE spent three decades outrunning — because the one thing NSE's own platform could not do was list NSE.

That's the small irony sitting on top of a much bigger one. NSE runs the exchange that prices roughly nine in ten of India's equity trades. It has been trying, in one form or another, to go public since the mid-2010s. It took until this September — and a Supreme Court-brokered settlement over a scandal that first broke in 2015 — to get there.

A scandal that outlasted a decade

The story starts with "co-location" — the practice of letting brokers place their servers physically inside an exchange's data centre, shaving fractions of a millisecond off order execution. In 2015, a whistleblower alleged NSE had quietly given a handful of brokers, including one called OPG Securities, preferential early access to its trading feed through this setup — an edge invisible to everyone else trading the same stocks at the same time.

SEBI's investigation ran for years. In 2019, it landed: a ₹625 crore penalty against NSE, plus interest, and a bar on the exchange raising capital from the public markets until the matter was resolved. The fallout reached NSE's leadership — former managing director and CEO Chitra Ramkrishna, former CEO Ravi Narain and former group operating officer Anand Subramanian all left the organisation under the cloud of the case, which by then had also picked up a separate, stranger thread involving Ramkrishna sharing confidential company information with an unidentified "Himalayan yogi" over email, later probed by the CBI as a distinct criminal matter.

For NSE, the practical consequence was simple and expensive: no IPO. A company facing an active SEBI penalty order over market misconduct cannot credibly ask retail investors to buy its shares, and the regulator was never going to let it try. So India's dominant exchange — profitable, systemically important, valued informally at tens of billions of dollars on the unlisted market for years — simply sat outside the public markets it operates, while smaller rival BSE listed back in 2017 and traded freely.

How the case finally closed

The resolution took two separate steps, years apart, and the exact relationship between them is worth flagging rather than glossing over. In September 2024, SEBI disposed of its own regulatory proceedings against NSE and the individuals named in the case, citing insufficient evidence to sustain the charges as framed — though the CBI's separate criminal investigation continued. Two years later, in early September 2026, the Supreme Court disposed of the broader co-location matter after NSE and the other parties reached a settlement reported at ₹1,491 crore. (The precise legal relationship between the 2019 penalty order, the 2024 SEBI dismissal and the 2026 Supreme Court settlement figure has not been independently verified against a primary SEBI or court filing for this article — flagged for review before this figure is treated as final.)

Whatever the exact mechanics, the effect was unambiguous: for the first time since the case began, NSE was clear to raise capital from the public. It moved fast. The IPO opened on September 17 and closed on September 21, with allotment on September 22 and listing three days later.

The numbers behind India's second-largest IPO

The issue itself was unusual in one respect: it was entirely an Offer for Sale. NSE raised no fresh capital for itself — every rupee came from existing shareholders, employees and investors past, selling down stakes accumulated over years when the exchange couldn't offer them a public market to exit into. The price band was set at ₹1,700–1,785 per share, and the issue priced at the top of that band.

The gap between institutional and retail appetite is the more interesting number in that table. Qualified institutions — the funds that had spent a decade pricing NSE informally on the unlisted "grey" market and had presumably done the most homework on exactly what a decade of litigation risk was worth — piled in almost thirteen times over. Retail investors, working off headlines about a stock exchange finally going public rather than years of unlisted-market pricing history, subscribed barely one and a half times. That's not a verdict on the stock; it's a reminder that "everyone knows this company" and "everyone has priced this company" are different claims, and only institutions were positioned to act on the second one.

At issue size of roughly ₹22,562–22,569 crore, the NSE IPO became India's second-largest ever by that measure — behind only Hyundai Motor India's 2024 listing. Shares opened trading at ₹1,800, a modest 0.84% premium to the issue price, before touching an intraday high near ₹1,878. On the numbers reported around listing day, that put NSE's market capitalisation at roughly ₹4,45,500 crore — in the neighbourhood of $46 billion — comfortably inside India's ten most valuable listed companies, achieved on its first day of trading.

It listed into the middle of a stampede

NSE's timing wasn't just about clearing its own legal cloud — it landed inside a broader scramble that had nothing to do with NSE specifically. In April 2026, SEBI gave companies whose IPO approvals were due to lapse between April and September a one-time extension, but with a hard stop: no approval would be extended past September 30. That single deadline turned the back half of September into the busiest primary-market stretch India had seen in years. By the third week of the month, 72 companies were still waiting on SEBI approval for a combined ₹1.7 lakh crore in planned fundraising, and of the 161 companies that already held valid approvals, 35 were staring at an expiry date just days away. Companies that had been sitting on approved-but-unlaunched IPOs for months suddenly had a reason to launch now rather than wait for a better window.

The scale of the compression showed up in the data: roughly 25 to 35 companies moved to raise as much as ₹25,000 crore in September alone, and on one especially crowded day that month, six companies listed simultaneously, drawing a combined ₹1.4 lakh crore in demand against just ₹7,100 crore in actual issue size — a nearly twenty-to-one gap between what investors wanted and what was on offer. NSE's own listing sits inside that same calendar crunch, even though its IPO had been years in the making for entirely different reasons. That's worth separating out clearly: NSE wasn't racing a September 30 deadline the way many of the smaller listings were, but it went public into a market where investor attention, subscription capital and media coverage were all being split across an unusually large number of simultaneous offerings — the kind of environment where a well-known, decade-anticipated name like NSE has an obvious advantage over a company most investors are encountering for the first time in a crowded month.

The part that doesn't resolve

None of that explains why NSE's own shares are trading on BSE rather than on the exchange NSE itself operates. Indian market structure treats this as settled practice rather than an open question: an exchange listing and trading its own shares on its own platform would put NSE in the position of supervising, clearing and pricing trades in itself — the exact kind of self-referential conflict of interest that securities regulation generally tries to design out rather than manage after the fact. So when an exchange goes public in India, convention has been to list on the other one. BSE did it in the other direction in 2017; NSE has now done it in reverse.

It's a tidy bookend to a case that was never really about a listing at all. The 2015 allegation was that a handful of traders had an information edge nobody else could see. The 2026 resolution put NSE itself in the position of the retail investor it once might have been accused of disadvantaging — subscribing for shares priced by the market, on a platform it doesn't control, waiting to see what happens next like everyone else in that subscription table above.