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Understanding F&O Trading Restrictions: Why Some Contracts Are Banned from Trading

By: Akriti Tomar | Date : Nov 4, 25

Futures and Options (F&O) play a crucial role in the Indian derivatives market, enabling traders to hedge risk, speculate, and leverage their capital. However, there are times when trading in certain F&O contracts is restricted or completely banned. These restrictions are not arbitrary—they are essential to ensure stability, protect investors, and maintain market integrity. Let’s understand why such bans occur and what they mean for traders.

Why Do F&O Contracts Enter the Ban Period?

An F&O contract of a stock enters a ban period when its open interest (OI) crosses 95% of the Market-Wide Position Limit (MWPL). The MWPL represents the total number of open positions allowed across all market participants for a specific stock’s derivatives.
  • When OI exceeds 95% of MWPL, trading in that stock’s F&O segment is restricted.
  • The ban is lifted only when the OI falls below 80% of MWPL.
During the ban period:
  • No new positions can be created in that stock’s F&O segment.
  • Traders can only square off existing positions.
  • The stock remains fully tradable in the cash (equity) segment.
Note: Index F&O contracts (like Nifty and Bank Nifty) are not subject to ban periods. For official MWPL updates, traders can visit the NSE Position Limits page.

1. Low Trading Volume and Open Interest

Low liquidity is one of the primary reasons certain contracts are unavailable for trading. If a contract has very few buyers or sellers, it becomes illiquid, making it difficult for traders to enter or exit without impacting prices. To safeguard traders from abnormal price movements and market manipulation, exchanges or brokers may restrict such contracts.

2. Long-Duration Contracts

Contracts with long expiry periods (beyond three months) are more uncertain and riskier due to unpredictable market conditions. Such contracts attract fewer participants and are more volatile. Hence, brokers and exchanges often limit or disable long-expiry F&O contracts to prevent excessive speculation.

3. Exchange or Regulatory Bans

At times, the exchange itself may impose a ban or suspension on a contract due to:
  • Excessive speculation
  • Abnormal price movements
  • Breach of position limits
  • Regulatory concerns raised by SEBI
These measures are preventive in nature, ensuring that the market remains orderly, transparent, and compliant.

4. Contracts Not Meeting Listing Criteria

Not every stock qualifies for F&O trading. Exchanges like NSE and BSE maintain strict eligibility norms, which include:
  • Minimum public shareholding levels
  • Sufficient trading volume and liquidity
  • Large number of shareholders
  • Price stability over time
If a stock fails to meet these norms, its derivative contracts may be delisted or temporarily restricted from trading.

Key Takeaways for Traders

  • F&O bans are protective, not punitive. They aim to maintain market discipline and protect investors.
  • Always check Open Interest (OI) and trading volume before entering a position.
  • Keep track of NSE’s daily F&O ban list to avoid trading interruptions.
  • Understand that restrictions help prevent price manipulation and unwarranted volatility.
  • Diversify your trading approach—when F&O restrictions apply, use opportunities in the cash or index segment.

In Summary

F&O trading restrictions are introduced when market activity crosses safe limits or when liquidity and transparency are at risk. Whether it’s due to high open interest, low participation, or exchange-imposed controls, these bans are designed to protect traders and ensure market stability. Understanding these mechanisms helps traders make informed, compliant, and risk-aware decisions in the derivatives market. For more information, contact RMoney at 0562-4266600 / 0562-7188900 or email us at askus@rmoneyindia.com Kickstart Your Investment and Trading journey effortlessly with RMoney. Open your Demat Account today and take the first step towards smarter investing and trading!  

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