The Shanghai Composite rose 0.4% to above 4,150, while the Shenzhen Component slipped 0.2% to 14,300 on Wednesday, with mainland markets showing mixed performances as investors balanced expectations of fresh policy support against a tightening regulatory environment for speculative trading. Beijing has indicated plans to cut key interest rates and introduce new measures to boost consumption and counter deflationary pressures this year. Meanwhile, the government has cracked down on speculative trading in a bid to curb capital market risks, targeting market manipulators and high-frequency trading, while raising margin requirements for retail investors. Among individual stocks, Zhongji Innolight gained 3.7% and Zijin Mining rose 3.5%, while BlueFocus Intelligent fell 1.7% and Sungrow Power tumbled 4.4%.