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".

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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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Empirical Research on Behavioral Factors in the Taiwan Stock Market: A Case Study of the Share Distribution

In an AI-driven Taiwan stock market, mastering chip distribution (ownership structure) is the key to profitability. This study delves into the Share Distribution data from the TDCC, transforming 15 tiers of shareholding data into behavioral finance factors such as investor attention, opinion dispersion, and retail speculation. By utilizing Fama–MacBeth two-stage regression and the alphalens-tej quantitative tool, we precisely validate the predictive power of psychological biases on stock returns, providing investors with actionable Alpha strategies and robust risk management solutions.

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Market Knowledge & Data Guides

What are Quantitative Funds: How Quant Funds Work, Benefits & More

Learn all about quantitative funds, how their models select investments, common strategies, main benefits and risks, and how they compare with traditional funds.

2026.09.16 more
Market Knowledge & Data Guides

10+ Most Common Hedge Fund Investing Strategies: Full Guide

Learn hedge fund investment strategies, including long-short equity, credit, arbitrage, and managed futures, plus their benefits and risks for investors.

2026.09.16 more
Market Knowledge & Data Guides

Panic or Opportunity? Spotting Market Turning Points Through Margin Maintenance Ratios

In the Taiwan stock market, credit trading (margin buying and short selling) serves as a critical mechanism for observing market leverage and investor sentiment. Unlike institutional investors with ample capital, retail investors often face capital constraints and therefore resort to margin buying to  increase their purchasing power. Consequently, margin data serves as a key barometer for retail trading heat.  Key indicators for monitoring credit trading include daily margin/short volume, balance, margin utilization rates, and—most crucially—the Margin Maintenance Ratio (MMR).  The MMR is a core metric used to assess the risk status of margin accounts and determine how close investors are to a margin call. Brokers set specific MMR thresholds to mitigate default risks during periods of high market volatility.

2025.10.16 more
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.

2025.09.22 more
Market Knowledge & Data Guides

Investing in Emerging Markets: Opportunities, Risks & Strategy

Should you invest in emerging markets? Our emerging market investment guide covers the benefits, risks, and strategies to empower you with data-based decisions.

2025.08.20 more
Market Knowledge & Data Guides

What are Alpha Signals & How are They Used in Trading?

Alpha signals are metrics that show portfolio outperformance potential. Learn how they’re generated and applied in trading, and the challenges of using them.

2025.08.20 more
Factor Investing

Factor Investing Explained: Types of Factors & Strategy Guide

Factor investing targets quantifiable characteristics to improve returns. Explores common factors (macroeconomic and style types) and strategies in our guide.

2025.08.20 more
Market Knowledge & Data Guides

What is Dividend Arbitrage: Strategy, Process, & Examples

Dividend arbitrage focuses on the price inefficiencies between dividend payouts and option pricing. This article will explore its execution process, examples, and challenges.

2025.01.24 more
Quant Data Science

What is Quantitative Data: Definition, Types, & Analysis

This article will explore what quantitative data is, outlining its meaning, types, and examples, while briefly viewing its collection and analysis methods.

2025.01.20 more
Quant Research

“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.

2024.11.29 more
Market Knowledge & Data Guides

How to Choose an Alternative Data Provider for Smarter Financial Decisions

How should you choose the best alternative data provider for your financial needs? Learn about key factors, such as data quality, integration, and more.

2024.11.07 more
Market Knowledge & Data Guides

Understanding the Common Types of Alternative Data to offer predictive insights for financial strategies

Alternative data are powerful tools for financial decisions. Learn about the different types of alternative data and how they offer valuable insight.

2024.11.07 more