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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Editor's picks from our research desk.
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.
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Quant Research
Implementing Peter Lynch’s Investment Philosophy: A Quantitative Strategy Combining Growth and Value
Discover how Peter Lynch’s legendary investment philosophy can be applied to Taiwan’s stock market. This article builds a quantitative GARP strategy using TEJ data to identify undervalued growth stocks—and tests its performance over seven years.
Quant Research
Derwood Chase’s Growth Momentum Stock-Picking Strategy: The Intersection of Value and Momentum
Discover how Derwood Chase’s value-momentum strategy—favoring low P/E stocks with strong price trends—delivers long-term outperformance in Taiwan’s market. Backtest results show strong alpha and lower drawdowns, proving the power of disciplined factor investing.
Quant Research
The Wisdom of Blue-Chip Stocks: Howard Rosman’s Prudent Path to Wealth
Rothman’s core investment philosophy is to “buy right and hold tight” or “buy strong and hold long.” He emphasizes selecting financially sound companies with stable and growing earnings, purchasing them at the right price, and holding them patiently for the long term. Without frequent portfolio adjustments, investors can achieve strong long-term returns. This simple yet resolute investment approach reflects Rothman’s practical wisdom and provides a clear, historically validated foundation for the strategy tested in this study.
Quant Research
Michael Murphy’s Risk Assessment Rules for Investing in High-Tech Stocks
With the rapid development of the high-tech industry, technology stocks have increasingly become the focus of the market. While these stocks offer significant growth potential, they also come with high volatility and substantial investment risk. Investors seeking high returns may face major losses if they fail to properly assess the associated risks. Therefore, effectively measuring and managing the downside risk of high-tech stocks has become a crucial component of sound investment decision-making.
Quant Research
Charles Brandes’ Value Investing Principles : Building a Portfolio with a Margin of Safety
In the field of investing, business cycles have always served as an important reference. Whether it’s fluctuations in the macroeconomy or the ups and downs of corporate earnings, these cycles play a crucial role. Charles Brandes, a distinguished disciple of Benjamin Graham, founded Brandes Investment Partners in 1974 and has since grown its assets under management from $130 million to over $75 billion. The firm’s Brandes Global Equity Fund achieved an impressive 20-year annualized return of 17.91%, significantly outperforming the MSCI World Index, and has received Morningstar’s five-star rating along with numerous international awards. Another flagship product, the AGF International Value Fund, has also demonstrated outstanding long-term performance. Brandes himself has been repeatedly ranked among the world’s top fund managers.
Quant Research
From Business Cycle Indicators to Asset Rotation: A Quantitative Strategy to Avoid Bear Markets
In the field of investment, the “business cycle” has always been an important reference point. Fluctuations in the overall economy, corporate earnings, and market sentiment all show distinct characteristics during different stages of the cycle. Therefore, being able to grasp the movements of the business cycle can help investors more accurately adjust their asset allocations and gain a relative advantage in the market.
Quant Research
Enhancing Investment Performance of the Ichimoku Cloud with the XGBoost Machine Learning Algorithm
Traditional Ichimoku strategies rely on fixed parameters (9-26-52) and visual interpretation, making them inflexible in adapting to different market conditions. XGBoost learns complex high-dimensional relationships between different data points and enhances the filtering and decision-making process of trading signals. This article use XGBoost to enhance investment performance of Ichimoku Cloud.
Quant Research
Michael Sivy’s 4 Key Income Investing Principles Unveiled
In the world of investing, accurate predictions and systematic analysis are key to achieving long-term success. Strategists who can decipher market trends become sought-after figures for investors eager to learn. Michael Sivy is undoubtedly one of the best. With precise market forecasts and unique investment insights, he has built a stellar reputation in the U.S. investment community. From warning of the 1987 stock market crash to predicting a market turnaround in 1995 and foreseeing the bursting of the tech bubble in 1999, Sivy has demonstrated exceptional market foresight through decades of research and hands-on experience. His book, The Rule of 72, has become a must-read classic, offering systematic analysis and clear guidelines for investors of all types.
Factor Investing
Analyzing Factor Performance with Alphalens: The Value Factors Edition
This series of articles uses Alphalens to examine the application and effectiveness of various factors in the market. In previous articles, we analyzed “foreign capital factors,” exploring how foreign investments influence the market. This article will focus on “value factors,” examining valuation-related indicators that reveal intrinsic value and affect long-term returns. You can use the alphalens-tej tool within TQuant Lab. This tool not only integrates TEJ data but also eliminates tedious data processing, allowing you to easily assess factor performance and further support the development of investment strategies.
Market Knowledge & Data Guides
“Unlocking Market Insights: Comparing Three Strategies Based on Directors’ Shareholding Data”
In the stock market, the shareholding ratio of directors has always been a key indicator for investors. Changes in insider holdings often signal their confidence in the company’s future development and have potential impacts on stock prices. However, identifying meaningful changes in shareholding ratios from vast data can be challenging for investors.
Factor Investing
Analyzing Factor Performance with Alphalens: Foreign Capital Factor Edition
This series of articles will use Alphalens to explore several key factors, gradually analyzing their impact on market performance. The first article focuses on “foreign capital,” examining the effects of foreign capital flows into the market. Next, we’ll delve into “value factors,” studying how they reflect a company’s intrinsic value. Finally, the last article will analyze “price-volume factors,” uncovering the interplay between price and trading volume.
Quant Research
The Momentum Strategy — Does the Trend Remain?
The article delves into the performance of momentum strategy under different take-profit and stop-loss conditions, analyzing how to balance risk and reward in a highly volatile market using actual backtesting data.