Market Overview - The metal new materials sector experienced a decline of 3.99% on October 17, with significant losses led by Bowei Alloy [1] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Individual Stock Performance - Notable performers included: - Xinlaifu (301323) with a closing price of 79.19, up 3.87% and a trading volume of 147,200 shares, totaling 1.156 billion yuan in transaction value [1] - Ni'an New Materials (688786) closed at 31.66, up 1.64% with a transaction value of 108 million yuan [1] - Conversely, Bowei Alloy (601137) led the declines with a closing price of 22.68, down 7.77%, and a trading volume of 343,900 shares, totaling 804 million yuan [2] - Other significant decliners included: - Galaxy Magnet (300127) down 7.70% to 36.56 [2] - Jiangnan New Materials (603124) down 7.58% to 76.71 [2] Capital Flow Analysis - The metal new materials sector saw a net outflow of 1.144 billion yuan from institutional investors, while retail investors experienced a net inflow of 1.206 billion yuan [2][3] - Key capital flows for selected stocks included: - Antai Technology (696000) with a net inflow of 19.43 million yuan from institutional investors [3] - Huada New Materials (605158) saw a net inflow of 6.57 million yuan from institutional investors [3] - However, stocks like Alloy Investment (000633) and Chitong New Materials (300930) experienced significant net outflows from institutional investors, at 6.52 million yuan and 10.42 million yuan respectively [3]