Original Core Argument

Use Gold ETF, ChiNext ETF, Nasdaq ETF for rotation. Sort by performance, only trade the strongest momentum. Entry: rank #1 + break 20-day high. Exit: lose #1 rank | break 20-day low. Hold cash when all three are weak. 10-year backtest (2016-2026) shows good performance.

Strategy Logic

Targets: Gold ETF, ChiNext ETF, Nasdaq ETF

Rules:

  • Entry: Momentum rank #1 + break 20-day high
  • Exit: Lose #1 rank | break 20-day low
  • No signal: Hold cash

Essence: Momentum rotation + trend following + cash protection

Analysis

What the Strategy Gets Right

  1. Logic is sound — “Only trade the strongest” is classic momentum strategy with academic support
  2. Long backtest period — 10 years (2016-2026) covering bull/bear cycles
  3. Cross-market diversification — Gold (safe-haven) + ChiNext (A-share growth) + Nasdaq (US tech)
  4. Cash protection — Holding cash when all three are weak avoids drawdowns

Where the Analysis Falls Short

  1. Survivorship bias — Only shows successful case, doesn’t show what happens with wrong targets
  2. Overfitting risk — “20-day high/low” parameter may be optimized
  3. Trading costs — Frequent rotation fees, slippage, taxes not calculated
  4. Missing key data — No annualized return, max drawdown, Sharpe ratio
  5. Market environment dependency — Past 10 years happened to be gold bull + Nasdaq bull; 2000-2010 would give very different results

Strategy Failure Scenarios

  • Ranging market: Momentum strategy generates repeated stop-losses, many false signals
  • Trend reversal: Momentum strategy lags when trends suddenly reverse
  • Correlation increase: If all three move together, rotation loses its meaning

Conclusion

This is a logically sound momentum rotation strategy — “only trade the strongest + cash protection” makes sense. But the article lacks key metrics (annualized return, drawdown, Sharpe) and fails to discuss when the strategy breaks down.

A more complete analysis should include:

  • Annualized return vs buy-and-hold
  • Maximum drawdown
  • Sharpe ratio
  • Performance in different market environments
  • Impact of trading costs

One-line summary: Strategy logic makes sense, but lacks key metrics and failure scenario discussion — can’t judge by backtest charts alone.