SEBI issues ex-parte interim order against Copthall Mauritius and Mansi Broking for alleged manipulative trading during BSE's Closing Auction Session on Sensex expiry day.
Copthall placed aggressive buy orders worth ₹291.29 Cr at +3% limit across all Sensex stocks, causing three sharp price spikes to benefit its long call/short put F&O positions.
Mansi placed large sell orders worth ₹145.65 Cr at -3% to -1% limits in 8 stocks, suppressing Sensex IEP for 5 minutes before cancelling all orders to benefit its put options.
SEBI calculates wrongful gains of ₹2.96 Cr for Copthall and ₹71.64 L for Mansi, imposes trading restrictions and impounds bank accounts totaling ₹3.68 Cr pending investigation.