中银量化大类资产跟踪：股指突破关键点位，有色及贵金属行情持续发酵

• The report does not contain any specific quantitative models or factors for analysis [1][2][3] - The report primarily focuses on market trends, valuation metrics, and style performance without detailing quantitative models or factor construction [1][2][3] - No formulas, construction processes, or backtesting results for quantitative models or factors are provided in the report [1][2][3]