The temporary trading ban on Jane Street may dent options volumes and weigh on earnings for intermediaries like Nuvama Wealth, which counted the quant firm among its key clients, according to Jefferies. In contrast, BSE may see limited impact, as foreign investors account for only a tiny portion of the bourse’s derivatives segment turnover, the brokerage said. Nuvama shares rebounded on Monday after a steep selloff in the previous trading session.