NSE Imposes Additional 15% Margin on Vodafone Idea, SAIL, and 16 F&O Stocks from March

The National Stock Exchange of India (NSE) has taken a decisive step in risk management ahead of the March 2026 futures & options series. From February 25, 2026, it will levy an additional 15 % exposure margin on 18 selected F&O stocks, including heavyweights like Vodafone Idea and SAIL. This isn’t a random hike; it targets stocks where the top 10 clients hold more than 20 % of the market‑wide position limit, a sign of concentrated risk in the derivatives market.