Chapter 4: Market Infrastructure Institutions (MIIs) and Intermediaries

Market Infrastructure Institutions (MIIs) constitute the critical structural backbone of the securities market. Because of their systemic importance, MIIs are subject to stringent regulatory oversight by SEBI regarding corporate governance, capital adequacy, cybersecurity, and technological resilience.

MIIs encompass three foundational institutional categories:

1. Recognized Stock Exchanges

Stock exchanges provide the automated, nationwide, screen-based electronic order-matching platforms where buyers and sellers trade securities.

• Key Institutions in India: National Stock Exchange of India (NSE), BSE Limited (formerly Bombay Stock Exchange), and Multi Commodity Exchange of India (MCX).
• Core Functions: Providing anonymous, nationwide electronic trading systems, establishing transparent listing agreements, enforcing listing compliance on public companies, and real-time market surveillance to detect unusual trading activity.

2. Clearing Corporations (CCs)

Clearing corporations are wholly owned or affiliated subsidiaries of stock exchanges that handle the post-trade processing, clearing, and settlement of all executed transactions.

• Key Institutions in India: NSE Clearing Limited (NCL) and Indian Clearing Corporation Limited (ICCL).
• Core Functions:
  • Novation and Central Counterparty (CCP): The clearing corporation interposes itself between the buyer and the seller for every trade, acting as the buyer to every seller and the seller to every buyer.
  • Settlement Guarantee: Through novation and substantial Settlement Guarantee Funds (SGF), the clearing corporation guarantees that the seller receives funds and the buyer receives securities, eliminating counterparty credit risk for traders.
  • Risk Management: Enforcing real-time margin collection, liquid asset requirements, and default management protocols.

3. Depositories

Depositories are specialized institutional entities that hold securities in electronic (dematerialized) form, maintaining safe custody and facilitating instantaneous book-entry transfers.

• Key Institutions in India: National Securities Depository Limited (NSDL) and Central Depository Services (India) Limited (CDSL).
• Core Functions: Dematerialization of physical securities, holding electronic balances on behalf of beneficial owners, processing book-entry delivery of securities on settlement days, and executing electronic credit of corporate actions (dividends, bonus shares, rights entitlements).

To access MIIs and participate in market operations, investors interact with various licensed market intermediaries registered under Section 12 of the SEBI Act, 1992:

1. Stock Brokers and Trading Members

Stock brokers are corporate entities registered with SEBI and holding membership in recognized stock exchanges.

• Role: Act as licensed agents through whom investors route buy and sell orders into exchange trading engines.
• Statutory Responsibilities: Enforcing KYC verification, issuing electronic contract notes within 24 hours of trade execution, collecting mandatory upfront margin, segregating client funds and securities from broker proprietary accounts, and periodic settlement of client accounts.

2. Depository Participants (DPs)

Depository Participants act as the bridge between investors and the central depositories (NSDL and CDSL).

• Entities Eligible: Scheduled commercial banks, registered financial institutions, custodian banks, and registered stock brokers.
• Role: Open and maintain demat accounts for investors, process dematerialization/rematerialization requests, execute delivery instructions (DIS/DDPI), and register nominee details.

3. Merchant Bankers (Lead Managers)

Investment banking entities registered with SEBI that advise corporate issuers on public offerings and capital raising.

• Role: Managing public offerings, drafting prospectus documents (Draft Red Herring Prospectus - DRHP), performing statutory due diligence on corporate disclosures, pricing the issue through book building, and managing the basis of allotment.

4. Registrars and Share Transfer Agents (RTAs)

Entities that maintain corporate share registers, process investor applications in IPOs, validate ASBA bids, calculate the basis of allotment, and process corporate dividend distributions (e.g., KFin Technologies, CAMS, Link Intime).

5. Custodians

Institutional entities that hold custody of securities and assets on behalf of Institutional Investors (such as Foreign Portfolio Investors - FPIs, Mutual Funds, and Pension Funds), handling trade confirmation and settlement clearing independently of retail channels.

All registered intermediaries are bound by statutory Codes of Conduct prescribed under their respective SEBI regulations (e.g., SEBI (Stock Brokers) Regulations, 1992). Key mandatory standards include:

1. Integrity and Fairness: Intermediaries must maintain high standards of integrity, commercial fairness, and ethical conduct in all business dealings.
2. Duty of Confidentiality and Best Execution: Brokers must execute client orders at the best available market price and maintain strict confidentiality regarding client positions and order details.
3. No Commingling of Funds: Strict statutory prohibition against mixing client funds with broker funds. Brokers must maintain dedicated Client Bank Accounts and Client Demat Accounts, completely segregated from proprietary business accounts.
4. Suitability and Risk Disclosure: Intermediaries must ensure that products recommended to clients are suitable based on their financial standing and risk profile, and provide standard Risk Disclosure Documents (RDD) before allowing trading in high-risk segments such as derivatives.