Group 1 - The core viewpoint of the articles highlights the explosive growth of thematic ETFs in 2025, with a significant increase in both scale and number of products, driven by investor demand, industry opportunities, and product supply [2][5][6] - Thematic ETFs have seen a scale increase from 410.39 billion to 795.54 billion, marking a year-on-year growth rate of 93.85%, the highest among five categories of stock ETFs [2][3] - The number of thematic ETF products has risen from 422 to 487, reflecting a 15.40% increase in product offerings [2] Group 2 - The market share of stock ETFs has decreased from 77.38% to 65.32%, while thematic ETFs' market share has increased from 11.00% to 13.97%, indicating a growing interest in thematic products [3] - The issuance of thematic ETFs has been particularly strong in technology and AI sectors, with 67 new thematic ETFs established this year, surpassing last year's total of 47 [6][7] - The total issuance scale of thematic ETFs reached 29.94 billion, a 167.49% increase compared to the same period last year [6] Group 3 - Notably, 19 thematic ETFs have surpassed 10 billion in scale this year, with the largest being the Jiashi Shanghai Stock Exchange Science and Technology Innovation Board Chip ETF at 41.74 billion [11] - Thematic ETFs have generally performed well, with 95.28% of the 487 products yielding positive returns this year, and 116 products achieving returns over 50% [10] - Thematic ETFs related to technology, batteries, gold, and rare earths have shown particularly strong performance [10] Group 4 - Despite the overall growth, 40 out of 67 newly established thematic ETFs have seen a decrease in scale, highlighting a competitive market environment [8] - Thematic ETFs related to chips have experienced significant net outflows, with the largest being 7.25 billion for the Huaxia National Chip ETF [16] - The trading volume for technology and high-end manufacturing ETFs has been robust, averaging 29.83 billion per day, supported by government policies favoring technological innovation [17][18]