Group 1 - The core index of the China Securities Overseas Mainland Stock Information Technology Index closed at 12364.67 points, with a monthly decline of 7.61%, a three-month increase of 38.10%, and a year-to-date increase of 38.14% [1] - The index is categorized based on the China Securities industry classification standard, with all securities in each industry serving as samples for the corresponding industry index [1] - The index has a base date of December 31, 2004, with a base point of 1000.0 [1] Group 2 - The Hong Kong Stock Exchange accounts for 100.00% of the holdings in the China Securities Overseas Mainland Stock Information Technology Index [1] - The industry composition of the index includes 73.48% in consumer electronic terminals, 18.93% in integrated circuit manufacturing, and 7.59% in computers and peripheral devices [1] - The index sample is adjusted every six months, with adjustments implemented on the next trading day following the second Friday of June and December [2]