Vigilant Asset Allocation (VAA): 11% CAGR — Does It Beat SPY?

Welcome to Avalon QuantBrief, where we dissect high-performing quantitative strategies for modern markets. Today, we explore the celebrated Vigilant Asset Allocation (VAA) framework and introduce our own adapted version designed to thrive in volatile environments. By combining momentum with a global regime filter, this strategy aims to deliver robust risk-adjusted returns.

Backtest Summary (2017–present)

📈 CAGR: 10.5%
📉 Max Drawdown: -18.6%
⚡ Sharpe Ratio: 0.80
💰 Total Return: 170.9%
🎯 Universe:

The Power of Vigilant Asset Allocation

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Traditional buy-and-hold strategies often leave investors highly exposed during periods of high inflation and sudden market shifts. Vigilant Asset Allocation (VAA) solves this by dynamically rotating capital between offensive and defensive assets based on momentum. This tactical framework offers a systematic way to protect capital while participating in market upside.

Understanding VAA Mechanics

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VAA divides the investable universe into offensive assets like global equities and defensive assets like treasury bonds. Each month, the strategy calculates a weighted momentum score across multiple timeframes to determine asset health. If even a single offensive asset shows negative momentum, the system rapidly retreats to the safest defensive asset available.

Introducing the SPY Regime Filter

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While classic VAA is highly effective, it can suffer from frequent whipsaws in volatile, sideways markets. To mitigate this, we integrated a global regime rule using the SPY 200-day simple moving average (SMA). If SPY falls below this moving average, the strategy automatically tilts defensive to preserve capital during prolonged bear markets.

Analyzing the Backtest Results

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Our backtest from 2017 to the present highlights the strength of this adapted strategy, delivering a total return of 170.9% and a CAGR of 10.5%. More importantly, the maximum drawdown was limited to just -18.6%, resulting in a highly competitive Sharpe ratio of 0.80. These metrics demonstrate the strategy's exceptional risk-adjusted performance.

A Smooth and Resilient Equity Curve

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During the major market drawdowns of 2020 and 2022, the strategy's equity curve remained remarkably flat. The SPY 200-day SMA filter successfully forced the portfolio into defensive assets before the worst of the declines. Once the market stabilized, the strategy captured the subsequent upside, outperforming traditional benchmarks.

The Final Verdict

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Our adapted version of VAA proves that adding a simple regime filter can significantly tame drawdowns without sacrificing double-digit returns. It is a robust, systematic framework built for serious quantitative investors looking to navigate uncertain markets. Subscribe to Avalon QuantBrief to track our live portfolio performance and active allocations.

⚠️ Not financial advice. This is for educational purposes only. Always do your own research before investing.

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