SPY strategy research

SPY Regime Rotation backtest

Research a simpler allocation that holds SPY in bull regimes and during oversold rebounds, then rotates to short-duration Treasury exposure through BSV in defensive regimes. This approach still carries market risk. Hypothetical results are not trading instructions or recommendations.

Backtest universe
SPY · BSV
Compared with SPY buy and hold

Date range

FromToStarting capitalSlippage (bps per side)Regulatory fee (bps sold)

Include estimated taxesApply annual federal and state tax estimates to realized gains. Off by default.

Tax calculations are off. Results show trading performance before income taxes.

Ready to compare

Run the strategy to compare it with buying and holding SPY or SPY over the same period.