Why NSE Listed on BSE and Not on Itself: The Regulatory Conflict & SECC Cross Listing Rule

The Institutional Paradox of Dalal Street

The public listing of the National Stock Exchange of India has created one of capital markets' most enduring paradoxes. The equity scrip of India's undisputed market infrastructure giant - which facilitates over 90 percent of domestic cash equity turnover and dominates the derivative space - is not available on its own trading platform. Buy and sell orders for the scrip only execute on the trading systems of its historic competitor, the Bombay Stock Exchange.

To the uninitiated retail investor, this may seem an intuitive misstep. Why wouldn't a clearing corporation and exchange operator, which generates extraordinary value through its deep liquidity pools, offer its public listing on its proprietary matching engine? From the first day of the public issue, the scrip has only been available for trading on the BSE.

Unpacking why NSE listed on BSE and not on itself requires us to examine the mechanics of securities regulation in India. Not only was the cross-listing a non-commercial decision - it was an obligation carved out by a statutory embargo banning self-listing of recognized stock exchanges.

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The Public Issue Architecture and Subscription Dynamics

The exchange's transition to being a public limited company was completed via one of Dalal Street's most closely watched public issues. The critical facts about the public offering have been laid out below:

• Issue Structure: The public issue consisted of a pure Offer for Sale of 12.64 crore equity shares by existing selling shareholders valued at Rs 22,562 crore. As this was a 100 percent OFS issue, no amount was raised for the exchange.

• Issue Pricing: The price band was set at a figure between Rs 1,700 and Rs 1,785 for each equity share, with a market lot size of 8 shares.

• Subscription Demand: The issue witnessed an overall subscription of 5.71 times the size of the issue. Qualified Institutional Buyers subscribed to the issue 12.68 times, while the Non-Institutional Investors subscribed 6.55 times, and the Retail Individual Investors subscribed 1.39 times.

• Debut Pricing: On the BSE, where the scrip was finally listed, the shares opened at Rs 1,800 per share, for a modest 0.84 percent premium to the closing issue price of Rs 1,785, giving the scrip a market capitalization of approximately Rs 4.5 lakh crore.

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The Frontline Regulatory Dilemma: Referee Versus Commercial Player

To understand why such a large-cap infrastructure scrip would be listed on a competing exchange, we must first examine the statutory obligations of a recognized stock exchange. In short, a stock exchange is a frontline regulator entrusted with the responsibility of overseeing all market participants.

A clearing corporation and exchange operator has several revenue streams, including transaction clearings, colocation server rentals, index licensing fees, corporate listing fees, and data feed subscriptions. Nevertheless, a recognized stock exchange also has the duties of a securities regulator outlined in the Securities and Exchange Board of India Act, 1992, and the Securities Contracts (Regulation) Act, 1956.

A stock exchange is obligated to supervise and direct all market participants within its jurisdiction. This includes:

• Real-time price/volume surveillance of all listed scrips to identify pump-and-dump cartels, circular trading, and insider-trading patterns;

• Enforce continuous disclosure obligations to ensure listed companies adhere to the SEBI Listing Obligations and Disclosure Requirements Regulations, 2015;

• Order trading halts, move volatile scrips to Trade-to-Trade settlement, and tighten circuit filters;

• Issue show-cause notices for non-compliance with listed products governance rules;

Should an exchange decide to list on itself, it creates an irreconcilable conflict of interest. The surveillance teams would have to investigate the board of directors, monitor price rumors about its own scrip, and determine whether to halt trading in its own shares. In short, a self-listed exchange would find itself in the untenable position of having to be both the referee and the striker.

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Statutory Anatomy: Regulation 45 of SEBI SECC Regulations, 2018

The statutory anatomy of the cross-listing requirement is best understood by examining the Securities Contracts (Regulation) (Stock Exchanges and Clearing Corporations) Regulations, 2018, or SECC Regulations.

Regulation 45 of the SECC Regulations provides the legal basis for the cross-listing of a recognized stock exchange on another recognized stock exchange:

• Permissible Listing: A recognized stock exchange may apply for the listing of its securities on any recognized stock exchange other than itself or its associated stock exchange, subject to compliance with the conditions specified in Regulation 45.

The Regulation goes on to state:

• Self-Listings Banned: No recognized stock exchange shall, directly or indirectly, list its securities on its own platform or on the platform of an associated or subsidiary exchange.

In essence, Regulation 45 stipulates that while a recognized stock exchange may convert itself into a public limited company, it may not list its shares on its own trading platform but on any other recognized exchange. The cross-listing requirement, therefore, responds to a regulatory imperative, not a commercial one.

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The Precedent: BSE's Historic Cross-Listing on NSE

The cross-listing requirements were not without precedent. Earlier, in February 2017, the Bombay Stock Exchange had raised funds via a public issue. Since Regulation 45 applied to the BSE as well, the BSE was prohibited from listing on its own exchange. Consequently, the BSE listed its shares exclusively on the National Stock Exchange.

For years, the National Stock Exchange's surveillance teams had monitored BSE's price movements, ensured compliance with SEBI LODR Regulations, applied circuit filters, and approved or disapproved of BSE's board recommendations just like any other listed company.

The listing of NSE on BSE completes the regulatory symmetry:

• BSE supervises NSE
• NSE supervises BSE

No market infrastructure institution has regulatory jurisdiction over its own scrip.

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The Exchange Listing Control Mechanism

To mitigate the risks of a direct and explicit regulatory confrontation, SEBI has implemented the Exchange Listing Control Mechanism.

This mechanism stipulates that if one exchange attempts to use its regulatory authority to unfairly target another exchange, the targeted entity may appeal to an independent regulatory review panel. In essence:

• The listing of one exchange on another ensures that both can fulfill their surveillance obligations without infringing upon each other's regulatory authority

• The listing departments of both exchanges will apply identical procedures to examine the quarterly filings, board recommendations, and governance guidelines of the listed exchange as they would any other public limited company

• To resolve any disputes, an independent committee of non-executive, public interest directors will be appointed to hear allegations of commercial bias or regulatory malfeasance

• Finally, either listed exchange may appeal to SEBI if the other fails to take appropriate regulatory action

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Public Issue and Structural Comparison: The Listed Infrastructure Giants

The following comparison provides an overview of the key operational and listing metrics of the two competing infrastructure scrips:

Structural Metric	National Stock Exchange (NSE)	Bombay Stock Exchange (BSE)
Listing Venue	Bombay Stock Exchange (BSE)	National Stock Exchange (NSE)
Regulatory Foundation	SECC Regulations, 2018 (Regulation 45)	SECC Regulations, 2018 (Regulation 45)
Frontline Surveillance Handled By	BSE Surveillance & Compliance Division	NSE Surveillance & Compliance Division
Core Revenue Drivers	Cash Equities, Index Derivatives, Colocation, Data Feeds	Cash Equities, Currency Derivatives, Mutual Fund StAR Platform
Primary Solvency Profile	Zero Financial Debt, Massive Cash Reserves	Zero Financial Debt, Strong Liquid Balance Sheet
Conflict Resolution Forum	SEBI Oversight Committee & Appellate Body	SEBI Oversight Committee & Appellate Body

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The Statistical and Institutional Reference Guidelines

The statutory and institutional reference guidelines pertaining to exchange cross listings and capital raisings have been reproduced below:

The Securities and Exchange Board of India (SEBI) Securities Contracts (Regulation) (Stock Exchanges and Clearing Corporations) Regulations, 2018, Regulation 45 outlining the cross listing requirements:

• https://www.sebi.gov.in

The Securities and Exchange Board of India (SEBI) Issue of Capital and Disclosure Requirements (ICDR) Regulations regarding the public issue and OFS requirements:

• https://www.sebi.gov.in

The Securities Contracts (Regulation) Act, 1956 (SCRA) which stipulates the legal requirements of a recognized stock exchange:

• https://dea.gov.in

The Securities Appellate Tribunal (SAT) judicial orders which distinguish between statutory regulatory duties and commercial responsibilities:

• https://sat.judiciary.gov.in

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Investor Protection Protocol and Position Management

As a retail or institutional buyer considering a scrip in the market infrastructure space, it becomes necessary to understand the difference between monopolistic competition and the cost of entry:

• Protocol 1: Understand the Monopolistic Competition
  While broking houses assume the risk of client credits, bad debt, and margin lending defaults, a stock exchange only collects non-refundable transaction fees on the shares that actually trade. A change in the overall profitability of the scrip will not impact the fees collected by the exchange.
• Protocol 2: Track Regulatory Revisions to Derivatives
  Since derivatives transaction levies comprise the largest source of income for a stock exchange, changes in index option contract sizes, weekly expiry limits, and clearing requirements can impact the velocity of transactions. Investors must account for regulatory sensitivities when forecasting revenues.
• Protocol 3: Buy in Tranches and Size Positions Accordingly
  In the case of a large public debut of an institutional infrastructure scrip, institutional positioning often drives a slow-burning price discovery. Small retail buyers should avoid buying at the open or during the first hour of trade. Instead, investors should size positions and calculate weighted averages to enter the long side of a position using the Valuenomy Stock Average Calculator.

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