Core Viewpoint - The article emphasizes the importance of growth and performance in stock selection, particularly within the O'Malley system, which sets strict revenue and profit growth conditions to identify potential investment opportunities [1]. Group 1: Stock Selection Criteria - The O'Malley system focuses on growth spillover, highlighting the need for continuous revenue and profit growth, especially from 2023 to 2025, to identify stocks like Yizhongtian [1]. - During bullish markets, stocks with less impressive performance may still see price increases, suggesting that ignoring such stocks may not be reasonable [1]. - The analysis indicates that traditional trend types remain highly correlated with performance, while volume trend types show low correlation, necessitating a more flexible approach to fundamental conditions for stock selection [1]. Group 2: Stock Screening Methodology - Two angles for designing fundamental pre-selection conditions are proposed: allowing for some growth without the stringent requirements of O'Neil and Mark [1]. - The first screening method requires TTM annual growth and quarterly growth, with specific thresholds for revenue and net profit increases [2]. - The second screening method focuses on consecutive quarters of high growth or a sudden spike in growth, with defined criteria for revenue and non-GAAP profit increases [4][5]. Group 3: ROE-Based Stock Selection - A stringent ROE-based stock selection formula is introduced, requiring a minimum ROE of 15% for three consecutive years and the most recent TTM year [6]. - This ROE criterion is designed to yield a highly focused selection of stocks, potentially narrowing down to just over a hundred candidates [6].

- Model Name: RuiLian Market Cap Weighted Index ETF - Model Construction Idea: The index still uses market cap weighting but selects stocks based on four fundamental indicators: sales, cash flow, dividends and buybacks, and book value including intangible assets, focusing on the economic efficiency of enterprises[11] - Model Construction Process: The model involves screening stocks using the four fundamental indicators mentioned above, and then applying market cap weighting to the selected stocks[11] - Model Evaluation: The model aims to achieve better returns with relatively small tracking errors compared to broad-based indices[11] - Factor Name: Sales - Factor Construction Idea: Select stocks based on their sales performance[11] - Factor Construction Process: The factor is constructed by evaluating the sales figures of companies and selecting those with strong sales performance[11] - Factor Name: Cash Flow - Factor Construction Idea: Select stocks based on their cash flow performance[11] - Factor Construction Process: The factor is constructed by evaluating the cash flow figures of companies and selecting those with strong cash flow performance[11] - Factor Name: Dividends and Buybacks - Factor Construction Idea: Select stocks based on their dividends and buybacks performance[11] - Factor Construction Process: The factor is constructed by evaluating the dividends and buybacks figures of companies and selecting those with strong performance in these areas[11] - Factor Name: Book Value Including Intangible Assets - Factor Construction Idea: Select stocks based on their book value including intangible assets[11] - Factor Construction Process: The factor is constructed by evaluating the book value including intangible assets of companies and selecting those with strong performance in this area[11] Model Backtest Results - RuiLian Market Cap Weighted Index ETF, tracking error: relatively small[11] Factor Backtest Results - Sales factor, performance: strong[11] - Cash Flow factor, performance: strong[11] - Dividends and Buybacks factor, performance: strong[11] - Book Value Including Intangible Assets factor, performance: strong[11]