塑料板块9月30日涨0.56%，圣泉集团领涨，主力资金净流出2.74亿元

Group 1 - The plastic sector increased by 0.56% on September 30, with Shengquan Group leading the gains [1] - The Shanghai Composite Index closed at 3882.78, up 0.52%, while the Shenzhen Component Index closed at 13526.51, up 0.35% [1] - Shengquan Group's stock price rose by 5.74% to 33.89, with a trading volume of 380,800 shares and a transaction value of 1.278 billion yuan [1] Group 2 - The net outflow of main funds in the plastic sector was 274 million yuan, while retail investors saw a net inflow of 200 million yuan [3] - Speculative funds had a net inflow of 73.87 million yuan [3]