Academic Foundation: Based on Dashan Huang (2015) “Twin Momentum: Fundamental Trends Matter” (Journal of Portfolio Management). The core insight: combining price momentum (12-1M excess return) with fundamental momentum (earnings revision trends) materially reduces momentum crash risk while preserving the factor premium.
Portfolio Construction: Monthly screening of the US large-cap universe on Validea’s Twin Momentum model. Top 10 stocks by twin-score are held at 10% each. Full reconstitution every month-end. No leverage, no shorting. Approximately 150–240% annual turnover.
Strengths: 123% upside capture vs 86% downside capture — asymmetric participation. Positive alpha in 12 of 19 years. Strongest in secular bull markets and post-crisis recoveries (2010 +43%, 2020 +48%, 2021 +40%, 2024 +42%).
Risks: High concentration (10 stocks). Momentum crash risk in rapid rate-shock reversals (2022: −27.7%). Lags in narrow thematic rallies (2023: −10pp vs index due to Magnificent 7 concentration).
Suitability: Long-horizon (5+ year) sophisticated investors tolerant of 30%+ drawdowns, seeking systematic exposure to momentum factor with a fundamental quality overlay. Not suitable as standalone allocation for risk-averse mandates.
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