NSE Ecosystem Introduction

The National Stock Exchange of India (NSE) was incorporated in 1992 as a tax-paying company and recognized as a stock exchange in 1993. It revolutionized Indian capital markets by replacing the inefficient “open outcry” floor trading system with a fully automated, screen-based electronic trading platform in 1994.

This transition democratised trading by allowing investors across the country to execute trades instantly with equal access to prices, drastically reducing transaction costs and manipulation. Today, NSE is the world's largest derivatives exchange by trading volume.

SEBI is the apex statutory body governing the NSE — protecting retail investors, preventing fraud, and ensuring orderly markets.

• Circuit breakers: Halts at 10%, 15%, 20% Nifty moves.
• Insider trading bans: Penalties for trading on non-public data.
• Disclosure norms: Quarterly earnings and material event reporting.

A trade flows through licensed intermediaries:

Stockbrokers

SEBI-registered platforms routing orders and managing client leverage.

Depositories (NSDL & CDSL)

Digital vaults holding dematerialized shares.

Clearing corporations (NCL)

Central counterparty guaranteeing settlement and eliminating default risk.