A SPY-focused rule system that switches between a defensive cash-like sleeve (BIL with XLP/GLD via inverse-vol) and a growth tilt (XLK) based on SPY’s trend and QQQ momentum signals, with a cash-equaling weighting approach and no automatic rebalancing.

- Core idea: the strategy revolves around SPY but uses a defensive sleeve or a growth tilt based on trend and momentum checks. - Trend check: it compares SPY’s current price to its 200-day moving average. If SPY is above that long-term trend line, the strategy proceeds along a defensive path; if not, it leans into other allocations. - Momentum check: within the defense path there is a momentary filter using the QQQ momentum (RSI over a 10-day window). If QQQ’s RSI is above 30, the defense logic stays in play and allocates to a cash-like asset plus defensive diversifiers; otherwise the strategy tilts toward the technology slice (XLK). - Defensive sleeve: the defensive layer includes BIL (short-term Treasuries) for safety, plus an inverse-volatility approach that shifts weight between XLP (consumer staples) and GLD (gold) depending on recent volatility, aiming to reduce risk when markets get choppier. - Growth/sleeve tilt: when the defense conditions aren’t met, the strategy allocates to XLK (technology), providing growth exposure instead of cash-like safety. - Rebalancing: set with a corridor width of 0.05 but configured to rebalance none, meaning automatic rebalancing is not actively performed unless a signal path explicitly triggers it. - Tickers used and roles: SPY (core S&P 500 exposure), BIL (cash-like short-term Treasuries), XLP (defensive consumer staples), GLD (gold hedge), XLK (technology growth), QQQ (Nasdaq momentum proxy).

Out-of-sample edge: 29.49% annualized return vs 23.07% for SPY; max drawdown 11.33% vs 18.76%; Sharpe 1.57 vs 1.27; Calmar 2.60. SPY core with adaptive defense and growth tilt—more upside, less risk.