Alpha Architect Research Blog

Alpha Architect Research Blog

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Practitioner‑research hub (Wes Gray and team) on factor investing, ETFs, and implementation research.

Why Momentum Investing Has Been Struggling—And What Volatility Has to Do With It
NewsMay 8, 2026

Why Momentum Investing Has Been Struggling—And What Volatility Has to Do With It

Academic research by Haim Mozes links the surge in VIX volatility spikes to the recent underperformance of momentum investing. Over the 1994‑2024 period, spikes became more frequent and reversed twice as fast in the 2014‑2024 decade, reflecting heightened market efficiency....

By Alpha Architect Research Blog
Should Your Mom Have Private Equity in Her 401K?
NewsMay 4, 2026

Should Your Mom Have Private Equity in Her 401K?

A new Harvard working paper challenges the push to add private‑equity (PE) to retail retirement accounts such as 401(k)s. Using cash‑flow‑aligned benchmarks, the authors find that over the past 15 years PE generated near‑zero alpha versus the S&P 500, and...

By Alpha Architect Research Blog
Rethinking Trend Following: Optimal Regime-Dependent Allocation
NewsMay 1, 2026

Rethinking Trend Following: Optimal Regime-Dependent Allocation

A new paper separates regime detection from position sizing, deriving Sharpe‑optimal weights for each market state. Applying the framework to two‑ and four‑regime specifications lifts out‑of‑sample Sharpe ratios from 0.208 to 0.506 and from 0.496 to 0.628, respectively, across 18...

By Alpha Architect Research Blog
Bank Monitoring with On-Site Inspections
NewsApr 28, 2026

Bank Monitoring with On-Site Inspections

A new Journal of Finance paper examines nearly 30,000 construction loans and on‑site inspection reports to reveal how banks monitor borrowers in real time. The study finds that banks focus inspections on riskier borrowers—low credit scores, high loan‑to‑value ratios, and...

By Alpha Architect Research Blog
The Skip-Month Mystery: What Last Month’s Returns Are Really Telling You
NewsApr 24, 2026

The Skip-Month Mystery: What Last Month’s Returns Are Really Telling You

A new study of 48 industry portfolios from 1975‑2024 questions the long‑standing “skip‑month” rule in momentum investing. By comparing a 12‑1 strategy that excludes the most recent month with a 12‑0 strategy that includes it, the research finds that the...

By Alpha Architect Research Blog
Asset Pricing and Risk-Sharing Implications of Alternative Pension Plan Systems
NewsApr 20, 2026

Asset Pricing and Risk-Sharing Implications of Alternative Pension Plan Systems

The Journal of Finance paper by Coimbra, Gomes, Michaelides, and Shen demonstrates that defined‑benefit (DB) pension funds are a powerful force in asset pricing, lowering risk‑free rates and boosting equity premia through their demand for safe assets. Their institutional constraints...

By Alpha Architect Research Blog
The Many Facets of Stock Momentum: Distinguishing Factor and Stock Components
NewsApr 13, 2026

The Many Facets of Stock Momentum: Distinguishing Factor and Stock Components

The paper by Gerard and Jehl demonstrates a durable, stock‑specific momentum component that stems from price reactions around earnings announcements, distinct from traditional factor‑driven momentum. By isolating returns in short windows surrounding each firm’s earnings over the prior year, the...

By Alpha Architect Research Blog
The Performance of Small Business Investment Companies
NewsMar 30, 2026

The Performance of Small Business Investment Companies

The Small Business Investment Company (SBIC) program, created in 1958, lets private funds invest in U.S. small firms with SBA‑backed leverage. A 2026 Financial Analyst Journal study finds SBIC funds from 2000‑2020 generated an average net IRR of 15.9% and...

By Alpha Architect Research Blog
Unlocking Hidden Patterns: How Daily Returns Predict Future Stock Performance
NewsMar 27, 2026

Unlocking Hidden Patterns: How Daily Returns Predict Future Stock Performance

Researchers Cakici, Fieberg, Neszveda, Bianchi and Zaremba introduced the Daily Return Information (DRI) signal, extracting chronological and rank information from a month’s daily returns using elastic‑net regression. The resulting Daily Return Information Factor (DRIF) delivers about 1.57% monthly (≈19% annualized)...

By Alpha Architect Research Blog
Increases CAPE Ratio Predictability with a Simple Adjustment
NewsMar 23, 2026

Increases CAPE Ratio Predictability with a Simple Adjustment

A new working paper demonstrates that a simple adjustment to the cyclically adjusted price‑earnings (CAPE) ratio—aligning index constituents and applying market‑cap weights—significantly sharpens its ability to forecast ten‑year equity returns. The revised Component CAPE delivers an out‑of‑sample R² of 0.575,...

By Alpha Architect Research Blog
Unlocking Hidden Value: How Corporate Language Reveals the Future of Intangible Investment
NewsMar 13, 2026

Unlocking Hidden Value: How Corporate Language Reveals the Future of Intangible Investment

A new study introduces an "intangible intensity" metric that gauges how much corporate language in 10‑K filings focuses on knowledge, customer, and organization capital. By applying large‑language‑model text analysis to over 10,000 public firms from 2002‑2023, the researchers link higher...

By Alpha Architect Research Blog
The Best Defensive Strategies: Two Centuries of Evidence
NewsMar 9, 2026

The Best Defensive Strategies: Two Centuries of Evidence

The paper extends defensive‑strategy testing back to 1800, revealing that systematic trend‑following and a revised defensive‑absolute‑return overlay (DAR4020) consistently protect a 60/40 portfolio during its worst months. Traditional safe‑haven assets such as gold and continuously‑bought equity puts underperform or erode...

By Alpha Architect Research Blog
The Long Volatility Premium: Short the Market, Get Paid?
NewsFeb 6, 2026

The Long Volatility Premium: Short the Market, Get Paid?

Patrick Kazley’s new paper argues that the apparent drag from buying put options is largely a hidden short‑beta exposure, not an inherent cost of long volatility. By neutralizing this beta, a pure long‑volatility factor delivers positive returns over time. The...

By Alpha Architect Research Blog