Stocks making the biggest moves midday: BSE, Voltas, Molbio Diagnostics, Physicswallah and more

BSE shares fell 4.76% by midday after Jefferies cut earnings estimates, while Voltas shares dropped 4% due to seasonal risks. PhysicsWallah shares gained 9% as losses narrowed in Q1 FY27. Meanwhile, Molbio Diagnostics debuted 21.44% above its issue price on Monday, August 17, following a strong response to its recent IPO.