Group 1 - The pharmaceutical commercial sector increased by 1.21% on January 13, with Shuyupingmin leading the gains [1] - The Shanghai Composite Index closed at 4138.76, down 0.64%, while the Shenzhen Component Index closed at 14169.4, down 1.37% [1] - Notable gainers in the pharmaceutical sector included Shuyupingmin, which rose by 10.15% to a closing price of 19.43, and Ruikang Pharmaceutical, which increased by 10.06% to 3.83 [1] Group 2 - The pharmaceutical commercial sector saw a net inflow of 395 million yuan from main funds, while retail investors experienced a net outflow of 215 million yuan [2] - Major stocks with significant net inflows included Haiwang Biological with 220 million yuan and Huaren Health with 165 million yuan [3] - Conversely, retail investors showed notable outflows in stocks like Ruikang Pharmaceutical and Huaren Health, with outflows of 121 million yuan and 67.99 million yuan respectively [3]