金融工程点评报告：Q4坚持乐观：首段抬估值，二段看韧性

• The report does not contain any specific quantitative models or factors for analysis[1][2][3] - The report primarily discusses industry trends, policy expectations, and investment strategies for Q4 2024[6][11][28] - Key sectors highlighted for investment include brokerage ETFs, innovative drug ETFs, and new energy ETFs, with a focus on undervalued industries and export-driven growth in later stages[11][28][32]