珠宝首饰低开低走陷入调整，截止午盘下跌1.21%，其中曼卡龙大跌3.42%，萃华珠宝、莱绅通灵等股跌幅均超2%。赛马概念、水泥建材、养鸡、煤炭、航运港口、新疆等板块跌幅居前。

Market Performance - The market opened strong with the Shanghai Composite Index up by 0.56%, the Shenzhen Component Index up by 1.47%, and the ChiNext Index up by 2.81% at midday [1] - Total trading volume reached 1.31 trillion [1] Sector Performance - AI hardware stocks surged again, with companies like Xinyi Technology hitting historical highs [3] - Brokerage stocks saw a rise, with Guosheng Financial Holdings achieving two consecutive trading limits [3] - Innovative drug concept stocks became active again, with Haishi Ke hitting the daily limit [3] - CPO, photolithography machines, and CRO sectors showed significant gains [3] - Jewelry and accessories sector faced a decline, down by 1.21% at midday, with Mankalon dropping by 3.42% and other stocks like Cuihua Jewelry and Laishen Tongling falling over 2% [3] - Other sectors such as horse racing, cement and building materials, poultry, coal, shipping ports, and Xinjiang also experienced notable declines [3] News Impact - Tianjin introduced a new measure allowing the use of housing provident fund for down payments on existing homes [3] - The US dollar against the Vietnamese dong rose by 0.03% to 26,267, marking the highest level since at least June 1993 [3] - South Korea plans to impose anti-dumping duties on hot-rolled stainless steel plates from China [3]