Market Overview - On October 10, the plastic sector declined by 0.63% compared to the previous trading day, with Jun Ding Da leading the decline [1] - The Shanghai Composite Index closed at 3897.03, down 0.94%, while the Shenzhen Component Index closed at 13355.42, down 2.7% [1] Stock Performance - Notable gainers in the plastic sector included: - Nalco Co. (002825) with a closing price of 10.74, up 10.04% and a trading volume of 241,600 shares, totaling 253 million yuan [1] - Ningbo Color Masterbatch (301019) closed at 19.85, up 6.61% with a trading volume of 123,400 shares, totaling 241 million yuan [1] - Qide New Materials (300995) closed at 52.01, up 5.50% with a trading volume of 46,800 shares, totaling 241 million yuan [1] - Major decliners included: - Jun Ding Da (301538) closed at 91.16, down 5.26% with a trading volume of 21,900 shares, totaling 205 million yuan [2] - Jinfat Technology (600143) closed at 21.28, down 4.14% with a trading volume of 1,736,600 shares, totaling 3.737 billion yuan [2] - Dongcai Technology (601208) closed at 19.52, down 3.60% with a trading volume of 364,500 shares, totaling 716 million yuan [2] Capital Flow - The plastic sector experienced a net outflow of 361 million yuan from institutional investors, while retail investors saw a net inflow of 291 million yuan [2][3] - Notable capital flows included: - Foshan Plastics (000973) had a net inflow of 10.2 million yuan from institutional investors, but a net outflow of 15.74 million yuan from retail investors [3] - Shenkai Co. (002361) saw a net inflow of 66.57 million yuan from institutional investors, with retail investors experiencing a net outflow of 42.09 million yuan [3] - Nalco Co. (002825) had a net inflow of 65.37 million yuan from institutional investors, with retail investors also facing a net outflow of 33.06 million yuan [3]