Top gaining stocks: These healthcare stocks surged over 10 per cent despite a sharp decline in domestic markets! Top gaining stocks: These healthcare stocks surged over 10 per cent despite a sharp decline in domestic markets! The only sector which was least affected today was the BSE Healthcare Index, which plunged 1.18 per cent to Rs 23,493.96, despite a sharp decline in the domestic market. Kiran Shroff / Friday, December 23, 2022 / Article rating: 4.3 The only sector which was least affected today was the BSE Healthcare Index, which plunged 1.18 per cent to Rs 23,493.96, despite a sharp decline in the domestic market.