三大股指集体低开，创业板指低开4.44%

Group 1 - A-shares opened lower on October 13, with the Shanghai Composite Index, Shenzhen Component Index, and ChiNext Index down by 2.49%, 3.88%, and 4.44% respectively, closing at 3800.11 points, 12837.25 points, and 2975.03 points [1] - Only the genetically modified, grain concept, and precious metals sectors showed gains, while all other sectors declined [1] Group 2 - Out of the A-shares, only 116 stocks were in the green, while 5295 stocks were in the red [2]