TAA.For The Masses
Strategy Library
Crash protectionby Wouter Keller & JW Keuning

Defensive Asset Allocation

Two trigger assets decide how much of a 12-asset book stays at risk.

Higher overfitting risk: these models have many parameters chosen with hindsight. Expect live results to trail the backtest.

Holding now

Signal from Aug 2026 close
  • SHY50%
  • GSG8.3%
  • GLD8.3%
  • QQQ8.3%
  • EWJ8.3%
  • SPY8.3%
  • VWO8.3%
  • SHY1-3Y Treasuries50.0%
  • GSGCommodities (GSCI)8.3%
  • GLDGold8.3%
  • QQQNasdaq 1008.3%
  • EWJJapan8.3%
  • SPYS&P 5008.3%
  • VWOEmerging Markets8.3%

Signal preview: if the month ended today

  • SHY50%
  • GSG8.3%
  • QQQ8.3%
  • EWJ8.3%
  • SPY8.3%
  • VWO8.3%
  • VGK8.3%

Unofficial. The rules only trade on month-end closes.

Trailing returns

Through Sep 25, 2026 · 3Y+ annualised

1M

+0.6%

YTD

+9.7%

1Y

+14.9%

3Y

+13.2%

5Y

+4.9%

10Y

+7.3%

Growth of $100

Backtest from May 3, 2004 to Sep 25, 2026 (22.3 years)

Defensive Asset Allocation+448%
60/40+480%
S&P 500+932%

Growth of $100, rebased to the start of the selected range. Month-end prices, dividends reinvested, no taxes or trading costs.

Risk & return, full backtest

CAGR

+7.9%

Volatility

9.4%

Max drawdown

-19.5%

Sharpe

0.69

Sortino

0.98

Calmar

0.40

Best year

+26.8%

Worst year

-11.7%

Drawdowns

Percent below the prior peak, vs the S&P 500

Calendar-year returns

Faded bars are partial years · 69% of months positive

Strategy Lab

Stress-test the implementation: trade on the signal day's close or later, split the portfolio into tranches that rebalance on different days (reduces timing luck), or swap a fund for a same-asset-class alternative.

The idea

DAA separates the crash signal from the investment universe. Emerging markets and aggregate bonds are the trigger assets, watched with the 13612W score: both positive holds the top six of twelve global assets; one negative goes 50/50; both negative goes fully defensive.

The rules

  1. 1Trigger assets: VWO and BND, scored by 13612W.
  2. 2Both positive → 100% top 6 of the G12 risky universe; one negative → 50/50; both negative → 100% defensive.
  3. 3Defensive: the best of SHY, IEF, LQD.

Funds used

  • BND US Aggregate Bonds
  • EWJ Japan
  • GLD Gold
  • GSG Commodities (GSCI)
  • HYG High Yield Bonds
  • IEF 7-10Y Treasuries
  • IWM US Small Cap
  • LQD IG Corporate Bonds
  • QQQ Nasdaq 100
  • SHY 1-3Y Treasuries
  • SPY S&P 500
  • TLT 20+Y Treasuries
  • VGK Europe
  • VNQ US REITs
  • VWO Emerging Markets

Early history uses proxy funds: AGG, EEM, EFA, IYR, SHY.

Recent allocations

Decided at each month-end, held the following month

  • Aug 2026
  • Jul 2026
  • Jun 2026
  • May 2026
  • Apr 2026
  • Mar 2026
  • Feb 2026
  • Jan 2026
  • Dec 2025
  • Nov 2025
  • Oct 2025
  • Sep 2025

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