Sensex Weekly Expiry: SAIL and Kaynes Technology India Under F&O Ban on May 21, 2026

Market participants are gearing up for the upcoming Sensex weekly expiry, with the stock exchange imposing restrictions on select securities in the derivatives segment as part of its regular monitoring mechanism. 

On May 21, 2026, both Steel Authority of India (SAIL) and Kaynes Technology India have been placed under the futures and options (F&O) trading ban. This action follows the breach of market-wide position limits, a regulatory measure to ensure market stability. 

Sensex Weekly Expiry: Stocks Under F&O Ban 

Ahead of the weekly expiry, SAIL and Kaynes Technology India Ltd has been placed under the F&O trading ban. The restriction has been imposed after the stock crossed 95% of the market-wide position limit (MWPL). 

While fresh positions are not allowed in the futures and options segment for the stock, it continues to remain available for trading in the cash market. 

Steel Authority of India Share Price Performance 

As of May 20, 2026, at 3:30 PM, Steel Authority of India share price on NSE was closed at ₹199.04 down by 0.01% from the previous closing price. This decline comes amidst the trading restrictions imposed due to the F&O ban. 

Kaynes Technology India Share Price Performance 

As of May 20, 2026, at 3:30 PM, Kaynes Technology India share price on NSE was closed at ₹3,001.00 down by 2.93% from the previous closing price. The stock's movement is being closely monitored following its inclusion in the F&O ban list. 

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What is Sensex Weekly Expiry? 

Sensex options contracts expire every Thursday. In cases where Thursday is a trading holiday, the expiry is shifted to the previous trading day. 

Settlement occurs at the regular market closing time unless otherwise specified by the exchange. Similarly, if the final Thursday of the expiry cycle is a holiday, contracts expire on the preceding trading session. 

Conclusion 

The inclusion of SAIL and Kaynes Technology India in the F&O ban list underscores the importance of monitoring position limits. Investors should remain vigilant about regulatory announcements and stock price movements during such periods. 

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Disclaimer: This blog has been written exclusively for educational purposes. The securities or companies 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.