BSE shares drop 3% after second downgrade in two days. Nuvama lists CAS among 3 key headwinds

BSE shares extended their losing streak after Nuvama downgraded the stock to Hold and cut its target price, citing three key concerns: the impact of CAS on trading volumes, tighter bank guarantee norms and limited scope for further market-share gains. Jefferies also recently downgraded the stock, adding to pressure on its earnings outlook.