After a smart opening on Dalal Street on Wednesday, the share price of diagnostic chain Dr Lal\u00a0PathLabs and drug major Alkem Laboratories surged 8.43 per cent and 10.16 per cent to Rs 893.65 and Rs 1521.75, respectively on Thursday. Volume wise, 21.78 lakh shares of Dr Lal Pathlabs changed hands at BSE on Thursday against 49.69 lakh shares on Wednesday. In case of Alkem Labs, around 12.72 lakh shares exchanged hand against 24.38 lakh shares in the previous trading session. In the broader market, the Sensex closed 11.59 points down at 25,838.71 on Thursday. Shares of both these companies listed on bourses with a hefty premium on Wednesday. Dr Lal shares settled the day with a sharp gain of 50 per cent against the issue price of Rs 550 on Wednesday. Alkem Labs closed with a sharp gain of nearly 32 per cent over the issue price of Rs 1,050 on Wednesday. Prior to Dr Lal and Alkem public offers, S H Kelkar, VRL Logistics, Power Mech Projects and Syngene International have also seen strong response in terms of subscription so far this year.