EAA (Elastic Asset Allocation) at a glance
EAA (Elastic Asset Allocation) is a tactical asset allocation (TAA) strategy by Keller & Butler across US Equity, International Equity, Emerging Markets, REITs, rebalanced monthly. Backtested 1982-03-31 to 2026-07-03 (44.3 years): 9.7% CAGR, 1.00 Sharpe, -17.2% max drawdown, 8.9% volatility.
- Type
- Tactical (TAA)
- Author
- Keller & Butler
- Rebalancing
- Monthly
- Risk
- Moderate
- Period
- 1982-03-31 to 2026-07-03
- CAGR
- 9.7%
- Sharpe
- 1.00
- Max Drawdown
- -17.2%
- Volatility
- 8.9%
EAA (Elastic Asset Allocation) — Tactical Asset Allocation Strategy
Elastic Asset Allocation (EAA) was published by Wouter Keller and Adam Butler in 2014. It is a momentum strategy with an innovative 'elastic' cash mechanism that dynamically adjusts the portfolio's cash allocation based on how many assets in the universe have positive momentum.
The cash fraction is calculated as cf = 1 - n/N, where n is the number of assets with positive 12-month returns and N is the total universe size. When all 10 assets have positive momentum, cash is 0%; when only half do, cash is 50%; when none do, the portfolio is 100% in cash (BIL).
EAA (Elastic Asset Allocation): frequently asked questions
- What is Elastic Asset Allocation?
- Multi-factor scoring combining return, low correlation, and low volatility. Cash fraction scales elastically with the number of assets showing negative momentum. Selects top 3 assets by composite score. Monthly rebalancing.
- Who created the EAA (Elastic Asset Allocation) strategy?
- EAA (Elastic Asset Allocation) was developed by Keller & Butler. It is based on Keller, W.J. & Butler, A. (2014). Elastic Asset Allocation (EAA).
- What is the historical return and maximum drawdown of EAA (Elastic Asset Allocation)?
- Backtested from 1982-03-31 to 2026-07-03, EAA (Elastic Asset Allocation) returned 9.7% CAGR with a -17.2% maximum drawdown and a Sharpe ratio of 1.00. Past performance does not guarantee future results.
- How often is EAA (Elastic Asset Allocation) rebalanced?
- EAA (Elastic Asset Allocation) is rebalanced monthly. BestFolio publishes the updated allocation signal each period.
- Is EAA (Elastic Asset Allocation) a tactical asset allocation strategy?
- Yes. EAA (Elastic Asset Allocation) is a tactical asset allocation (TAA) strategy: it adjusts its holdings based on market signals each period rather than holding a fixed allocation.
Backtest Performance (1982-03-31 to 2026-07-03)
| Metric | EAA (Elastic Asset Allocation) |
|---|---|
| Compound Annual Growth Rate (CAGR) | 9.7% |
| Maximum Drawdown | -17.2% |
| Sharpe Ratio | 1.00 |
| Sortino Ratio | 1.38 |
| Annualized Volatility | 8.9% |
| Calmar Ratio | 0.57 |
| Total Return | 5925.6% |
| Backtest Period | 44.3 years |
Strategy Details
- Type
- Tactical (TAA)
- Rebalancing
- monthly
- Risk Level
- moderate
- Variants
- 2
- Author
- Keller & Butler
- Source
- Keller, W.J. & Butler, A. (2014). Elastic Asset Allocation (EAA)
Asset Classes
- US Equity
- International Equity
- Emerging Markets
- REITs
- Commodities
- Gold
- Bonds
- Corporate Bonds
- High Yield Bonds
- T-Bills
Categories
Further reading
New to this approach? Read what tactical asset allocation is and how it works.
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