Group 1 - The core viewpoint of the news is that Invesco Great Wall is launching the "Invesco Great Wall Science and Technology Innovation Index Enhanced Fund" to effectively track the index while pursuing higher excess returns through quantitative strategies [1] - The Science and Technology Innovation Index covers all non-ST listed companies on the Science and Technology Innovation Board, with a total sample size of 569 and a market capitalization coverage of 96%, encompassing 16 primary industries [1] - The index's composition allows for significant stock selection opportunities, which can help uncover undervalued market opportunities, while the "20CM" price fluctuation limit leads to higher volatility compared to the main board, benefiting excess return strategies [1] Group 2 - Invesco Great Wall's quantitative team has been continuously developing index enhancement strategies, creating a product matrix that covers major A-share indices [2] - The enhanced funds include those tracking the CSI 300 Index, CSI 500 Index, and the ChiNext Composite Index, as well as focusing on technology innovation with the Invesco Great Wall ChiNext Index Enhanced Fund and the Science and Technology Innovation 50 Index Enhanced Fund [2] - The company has also developed enhanced funds that specialize in indices with high content of specialized and innovative companies, such as the Invesco Great Wall CSI 1000 Index Enhanced Fund and the Guozheng 2000 Index Enhanced Fund [2]