Insights
In-depth research and data-driven insights on quantitative finance, factor investing, risk, and ESG from the TEJ research team.
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Fundamental Factor Research: Monthly Revenue Information – part1
The Taiwan equity market possesses a rare institutional advantage globally: under the Securities and Exchange Act, listed companies are required to announce and report their operational results for the preceding month by the 10th of each month (Exception: starting from FY2026, insurance companies and entities with insurance subsidiaries may extend their disclosure deadline to the 15th of each month). This is commonly referred to in the market as "Monthly Revenue".
Factor Strategy – Integrating Broker Consensus to Enhance Foreign Concentration Strategies – QFII Part 2
Boost your quantitative strategy with QFII concentration & broker consensus! Discover how the conc_qfii fusion strategy delivers a 30.12% annualized return in the Taiwan large-cap market.
Factor Research – Tracking Smart Money Footprints via Foreign Institutional Concentration – QFII Part 1
Track QFII ‘smart money’ footprints in Taiwan large-cap stocks! Learn how the Foreign-Institutional Trading Concentration (conc_qfii) factor predicts returns.
Insights
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Factor Investing
Discovering Investment Factors through Point-in-Time Audited Financial Database
This study employs TEJ’s Point-in-Time Audited Financial Database to construct a composite factor for stock selection in Taiwan’s equity market. By preserving financial data exactly as available at each historical moment, the framework avoids look-ahead bias and ensures empirical reliability. We find that higher-ranked portfolios deliver significant short-term excess returns, while predictive power weakens over longer horizons. The results highlight the practical value of Point-in-Time financial data for quantitative factor investing and underscore its role in building replicable, data-driven investment strategies.
Market Knowledge & Data Guides
TEJ Point-in-Time Audited Financial Database – Rejecting “Peek-ahead” Backtesting
TEJ PIT Audited Financial Database eliminates look-ahead and survivorship bias with Point-in-Time data, full version retention, IFRS alignment, and 300+ ready-to-use ratios—delivering reliable backtesting and faster strategy development.
Market Knowledge & Data Guides
Optimal Capital Structure：How to Minimize Your Company’s Cost of Capital
For all companies, there are two simple methods to increase their value, Revenue up and Cost down. While growth companies typically focus on revenue expansion, value companies often shift their focus to cost reduction, especially through optimizing their capital structure. By finding the optimal capital structure, companies can reduce their cost of capital, thus improving profitability.
Event & Alternative Signals
Revenue Numbers Don’t Lie: How to Gain Insight into Stock Price Movements from Quarterly Reports
How to Gain Insight into Stock Price Movements from Quarterly Reports? This article will use quarterly reports stock selection to filter the top 20% of listed companies in Taiwan by quarterly revenue and implement long positions. Through this revenue-based backtesting approach, we can identify potential strong stocks in the market and verify the effectiveness of this quarterly stock selection strategy with accurate data. It is simple and provides investors with a stable and systematic basis for stock picking, uncovering the hidden signals behind stock price movements.
Market Knowledge & Data Guides
Mastering the Dynamics of Financial Data Sourcing: A Strategic Guide
Unlock business success with accurate and comprehensive financial data – the lifeblood of strategic decisions and market understanding. Master the art of financial data sourcing for successful analysis. Navigate the dynamic market with astute judgment to ensure relevant insights for effective financial modeling.
Market Knowledge & Data Guides
Survivorship Bias
Highlights Preface Survivorship bias refers to a type of error in research or observation where only the successful or surviving entities or events are considered, while the failures or disappearances are ignored or excluded. This bias can lead to a misunderstanding of the overall situation because observing only the successful or surviving entities may not […]
Quant Research
【Quant】PE ratio Analyzing
Using PE ratio to assess current stock price Keywords: PE ratio, EPS, visualization Highlights: Preface: The PE ratio is a typical indicator that evaluates the reasonability of the stock’s price. The formula is PE ratio = (Price Per Share) / (Earning Per Share). The higher PE ratio indicates the overestimated price of the stock, which […]