Nifty Weekly Expiry Today: SAIL Under F&O Ban on Nov 18, 2025

On November 18, 2025, extending its winning streak to a sixth session, the BSE Sensex rose 388 points (0.46%) to close at 84,950.95, while the Nifty 50 gained 103 points (0.40%) to end at 26,013.45.

The Nifty weekly derivatives contracts will expire on Tuesday, November 18, 2025, as per the usual weekly schedule. With the expiry approaching, traders have turned cautious, leading to a softer market mood.

Stock Under F&O Ban on Nifty’s Weekly Expiry Day

Ahead of the Nifty’s weekly expiry on Tuesday, November 18, 2025, the National Stock Exchange (NSE) has placed 1 stock under the Futures and Options (F&O) ban.

A stock enters the F&O ban list when its open interest exceeds 95% of the market-wide position limit (MWPL). During the ban, traders cannot take new derivative positions, though the stock remains available for trading in the cash segment.

Stock under F&O ban for November 18:

Steel Authority of India Limited (SAIL)

Steel Authority of India share price (NSE: SAIL) closed at ₹141.30, down 0.49% on November 17, 2025. During the session, the stock opened at ₹142, touched a high of ₹143.10, and a low of ₹140.20. 

SAIL currently has a market cap of ₹58,400 crore, a P/E ratio of 22.82, and offers a dividend yield of 1.13%. The stock remains close to its 52-week high of ₹145.90, while its 52-week low stands at ₹99.15.

Why Is a Stock Under F&O Ban?

A stock enters the F&O ban list when its open interest crosses 95% of the market-wide position limit (MWPL), as defined by NSE rules.

During the ban period:

• Traders cannot open fresh F&O positions
• Only existing contracts can be squared off
• Violations can attract penalties

This mechanism helps control excessive speculation and maintain smooth market operations, especially around high-volatility periods like expiry.

About Nifty Weekly Expiry

Nifty 50 F&O contracts expire every Tuesday, unless it's a trading holiday, then the expiry shifts to the previous session. All contracts are settled at the day’s closing price.
In expiry week, some platforms may group weekly contracts under the monthly section for convenience.

Conclusion

Market sentiment has stayed subdued ahead of the Nifty weekly expiry on November 18, 2025. With SAIL falling under the F&O ban, traders are likely to look toward cash market trades while waiting for expiry adjustments.

Disclaimer: This blog has been written exclusively for educational purposes. The securities mentioned are only examples and not recommendations. This does not constitute a personal recommendation/investment advice. It does not aim to influence any individual or entity to make investment decisions. Recipients should conduct their own research and assessments to form an independent opinion about investment decisions. 

Investments in the securities market are subject to market risks, read all the related documents carefully before investing.