数字媒体板块9月18日跌1.67%，凡拓数创领跌，主力资金净流出2.48亿元

Group 1 - The digital media sector experienced a decline of 1.67% on September 18, with Fantawild leading the drop [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] - A table detailing the individual stock performance within the digital media sector was provided [1] Group 2 - In terms of capital flow, the digital media sector saw a net outflow of 248 million yuan from main funds, while retail investors contributed a net inflow of 281 million yuan [2] - The net outflow from speculative funds amounted to 32.88 million yuan [2] - A table showing the capital flow for individual stocks in the digital media sector was included [2]