Retail investors have reduced their activity in the equity derivatives market after the Securities and Exchange Board of India (Sebi) began tightening rules to discouraging excessive speculation. In a research paper released on July 7, 2025, the regulator said the turnover of individual investors in equity derivatives (or futures and options, F&O), measured in premium terms, declined by 11 per cent year-on-year (YoY) during the six-month period from December 2024 to May 2025. The number of unique individual investors trading in the equity derivative segment also came down by 20 per cent YoY.