Most retail traders in India are familiar with SEBI's existence but have only a vague sense of what it actually regulates — and how those regulations affect their daily trading activity. Understanding the key rules isn't just compliance — it's operational edge. Knowing when a stock is approaching an F&O position limit, understanding what triggers a trading halt, or recognizing that an unusual option chain move might relate to insider activity gives you context that untrained participants miss. This guide covers the regulations that matter most for active traders.
The Securities and Exchange Board of India was established in 1988 and granted statutory powers under the SEBI Act, 1992. Its core mandate: protect investor interests, promote capital market development, and regulate securities market intermediaries. SEBI has powers to investigate, penalize, debar, and prosecute — including criminal referral to police in serious cases. Its key regulatory instruments relevant to traders:
The PIT Regulations 2015 are SEBI's most aggressively enforced framework. The core prohibition: no person in possession of Unpublished Price-Sensitive Information (UPSI) may trade in the securities of a company to which that information relates.
What is UPSI? Information that is not generally available and that, if published, would materially affect the price of securities. Specific examples per Regulation 2(1)(n):
Who is an insider? Not just management. SEBI's definition covers "connected persons" — anyone who has had access to UPSI by virtue of their relationship with the company. This includes employees, directors, auditors, advisors, and even family members and relatives of the above (within six months of their information access).
The burden of proof is effectively reversed under PIT — insiders who trade near corporate announcements must demonstrate they did NOT have UPSI, not that they did.
Trading windows: Listed companies must maintain a structured trading window that closes when UPSI is created and opens 48 hours after the public disclosure. Company employees cannot trade outside open windows without pre-clearance. As a retail trader, you are not bound by the company's internal trading window — but SEBI can still investigate you if unusual option activity around an announcement suggests information leakage.
The PFUTP Regulations 2003 prohibit fraudulent and unfair trade practices in securities markets. Retail traders are more commonly implicated than they expect. Prohibited activities include:
| Practice | Description | Penalty Risk |
|---|---|---|
| Wash trading | Buying and selling the same security simultaneously to create artificial volume | High — SEBI actively screens for this |
| Painting the tape | Series of trades designed to create impression of active trading; influencing others to buy | High |
| Pump and dump | Spreading false positive information to inflate a stock, then selling | Criminal referral possible |
| Front-running | Trading ahead of client orders using knowledge of pending large orders | High — common broker/dealer action |
| Spoofing | Placing large orders to move the order book and cancelling before execution | Moderate — algorithmically detected |
| Spreading false rumours | Circulating unverified stock tips on social media to influence price | Moderate — social media monitoring active |
SEBI mandates price band circuit filters on all listed securities. There are two types:
1. Stock-level circuit filters: Individual stocks have daily upper and lower price limits based on their category:
2. Market-wide circuit breakers (index-based): These halt ALL trading on NSE and BSE simultaneously:
SEBI and NSE impose position limits on F&O participants to prevent excessive concentration and potential manipulation. The key ones:
The F&O ban list is published daily by NSE before market open. Monitoring it is essential for traders with open stock futures or options positions.
SEBI circulars, NSE announcements, and regulatory changes surface on Overwatch's live news feed the moment they are published — giving you the earliest possible awareness of rule changes that affect your positions.
Open Overwatch Dashboard ↗The Takeover Regulations require any entity acquiring 25% or more of a listed company to make an open offer to buy an additional 26% from public shareholders at a price not less than a computed fair value. For traders, this matters because: