Nifty Weekly Expiry Today: Bandhan Bank, LIC, Manappuram Finance and SAIL Under F&O Ban on August 18, 2026

The Nifty 50 closed lower on August 17, 2026, falling 78.35 points, or 0.32%, to 24,287.65. The Sensex also ended in the red, declining 281.09 points, or 0.36%, to 77,728.16. 

As traders head into the Nifty weekly expiry on August 18, 2026, 4 stocks namely Bandhan Bank, LIC, Manappuram Finance and SAIL are under the Futures and Options (F&O) ban. 

Stocks Under F&O Ban on Nifty Weekly Expiry 

The NSE places a stock under the F&O ban when its open interest crosses 95% of the Market-Wide Position Limit (MWPL). The restriction applies only to fresh derivative positions. The shares can still be bought and sold in the cash market. 

The stocks under the F&O ban on August 18, 2026, are: 

1. Bandhan Bank

Bandhan Bank share price closed at ₹173.25 on the NSE on August 17, 2026, down 0.74% from its previous close. 

2. LIC

LIC share price ended at ₹410.00 on August 17, 2026, registering a decline of 0.85% from the previous session. 

3. ManappuramFinance 

Manappuram Finance share price closed at ₹348.60 on the NSE on August 17, 2026, marginally lower by 0.11% compared with its previous closing price. 

4. SAIL

Steel Authority of India (SAIL) was one of the better performers among the four stocks. Its share price closed at ₹173.60, gaining 2.41% on August 17, 2026. 

Why Are Stocks Put Under the F&O Ban? 

The F&O ban is triggered when open interest in a stock's derivative contracts exceeds 95% of its MWPL. The rule is intended to keep excessive positions and speculative activity in check. 

Once a stock enters the ban list, traders cannot take fresh F&O positions. Existing positions can be squared off or reduced. Violating the exchange rules can result in penalties. 

The restriction becomes particularly relevant around expiry, when trading activity and volatility can rise sharply. 

About Nifty Weekly Expiry 

Nifty 50 Futures and Options contracts expire every Tuesday. When Tuesday is a trading holiday, the expiry moves to the previous trading day. Contracts are settled using the closing price on the expiry day. 

Some trading platforms may show weekly contracts under a monthly section during expiry week. This is only a display arrangement and does not alter the actual expiry schedule. 

Also Read: Astral Share Price Gains Over 8% After Q1 FY27 Earnings Results: Total Income Up 16.1% YoY! 

Conclusion 

With the Nifty weekly expiry taking place today, traders will be watching market movement closely. Bandhan Bank, LIC, Manappuram Finance and SAIL remain restricted from fresh F&O positions, although all four stocks continue to trade in the cash market. 

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 or 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.