Nifty Weekly Expiry Today: Ambuja Cements, Bandhan Bank and Others Under F&O Ban on October 13, 2026

The Nifty 50 closed lower on October 12, 2026, fell 157.10 points, or 0.70%, to 22,363.35. The Sensex also ended in the red, losing 547.65 points, or 0.76%, to 71,924.68. 

As traders head into the Nifty weekly expiry on October 13, 2026, 4 stocks namely Ambuja Cements, Bandhan Bank, Kaynes Technology India 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 October 13, 2026, are: 

1. Bandhan Bank

Bandhan Bank share price ended at ₹157.50 on October 12, 2026, registering a gain of 0.32% from the previous session on NSE.  

2. Ambuja Cements

Ambuja Cements share price ended at ₹348.00 on October 12, 2026, registering a loss of 1.00% from the previous session on NSE.   

 3. SAIL

As of October 12, 2026, at 3:30 PM, Steel Authority of India share price on NSE was closed at ₹171.00 down by 0.32% from the previous closing price.  

4. Kaynes Technology India

As of October 12, 2026, at 3:30 PM, Kaynes Technology India share price on NSE was closed at ₹3,222.10 down by 1.28% from the previous closing price. 

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: Birlasoft Share Price in Focus After Becoming OpenAI Select Partner! 

Conclusion 

With the Nifty weekly expiry taking place today, traders will be watching market movement closely. Ambuja Cements, Bandhan Bank, Kaynes Technology India 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.