Group 1 - The core viewpoint of the article highlights that the sales performance of the Xiaomi 17 series has significantly exceeded expectations, with the series setting new records for sales volume and revenue in the domestic smartphone market within the first day of launch [1][2]. - The Xiaomi 17 series officially went on sale on September 27, with the entire series achieving record sales within the first 5 minutes, marking a milestone for new smartphone series in 2025 [2]. - The Xiaomi 17 Pro Max model alone broke the record for first-day sales volume and revenue among all domestic smartphones this year, accounting for over 50% of the total sales in the Xiaomi 17 series [2]. Group 2 - Despite the strong sales performance of the Xiaomi 17 series, the stock price of Xiaomi Group has shown a slight decline of 0.28% since October, underperforming compared to the Hang Seng Index and the Hang Seng Tech Index, which increased by 0.38% and 1.31% respectively [2]. - On October 6, Xiaomi Group's stock price fell by 2.09%, closing at 53.85 Hong Kong dollars [2].