The Best Defensive Strategies: Two Centuries of Evidence

Key Takeaways

• Trend-following and DAR4020 outperform in worst 60/40 months
• Gold underperforms as hedge over two‑century sample
• Systematic put options cost negative carry, reducing long‑run returns
• DAR4020 adds factor premia while keeping defensive correlation
• Blended trend-following plus DAR4020 improves protection across drawdowns

Summary

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 long‑run returns. DAR4020 adds factor premia while preserving negative correlation to equities, and when paired with trend‑following it offers complementary protection across drawdown shapes. The authors argue that a blended defensive sleeve delivers both downside safety and positive carry over centuries of market regimes.

Pulse Analysis

Investors have long relied on the classic 60/40 split, yet its historical record is punctuated by deep drawdowns that erode wealth through volatility drag. Most academic assessments of defensive tactics stop at the post‑1980 era, limiting insight to a handful of crises. By stitching together a monthly dataset that stretches back to 1800, the authors capture a richer tapestry of monetary regimes, wars, and inflationary shocks, providing a more robust testbed for hedging strategies.

The analysis identifies two clear winners. Systematic trend‑following, which capitalizes on momentum across asset classes, delivers positive average returns even in the 10% worst 60/40 months. The enhanced DAR4020 overlay—long the most negatively correlated factor tercile and short the most positively correlated—preserves the defensive beta while extracting factor premia, resulting in a net long‑term return. By contrast, gold’s safe‑haven myth fades over the full sample, and continuous equity‑index put buying, though effective in sharp sell‑offs, imposes a sizable negative carry that hurts overall performance.

For practitioners, the takeaway is pragmatic: treat defensiveness as a portfolio‑design problem rather than a single‑product fix. A blended allocation of trend‑following and DAR4020 offers immediate protection during abrupt crashes and sustained defense throughout protracted downturns, all while maintaining a positive expected return. This dual‑layered approach aligns with fiduciary duties, allowing advisors to fund hedges through inherent carry and to stress‑test portfolios across centuries‑long regimes, thereby delivering resilient, client‑centric solutions.