Billionaire Gautam Adani’s group firms settled one of the probes into a US short-seller’s accusations, further easing regulatory overhang for the ports-to-power conglomerate.

India’s markets regulator proposed sweeping changes to the closing auction system, including a possible return to the previous method for settling derivatives on expiry days, after sharp price swings and liquidity concerns emerged around the month-old mechanism.

GQG Partners Inc.’s sale of Adani Energy Solutions Ltd. shares during India’s closing auction on Monday overwhelmed demand from passive funds, according to people familiar with the matter, contributing to a 10% slump in the stock on the day.