A daily, rules-based switcher. It hedges when the Nasdaq looks overheated, stays in QQQ when calm, otherwise rotates into one sector and uses a simple “too cold/balanced/too hot” test to pick bull, neutral, or bear funds. 0–10% tilts to Bitcoin in uptrends.

Daily. 90% runs a sector-rotator; 10% goes to Bitcoin (GBTC) when its price is above its 50‑day trend, otherwise it joins the main block. If the Nasdaq is red‑hot (RSI>79 on TQQQ, a 3× Nasdaq fund), move to VXX (volatility). Else if the Nasdaq’s worst 20‑day dip is <5%, hold QQQ. Else scan sectors and pick the first with a mild dip (<5%). In that sector: if very weak buy a levered bull fund; if too hot buy a bear fund; else hold the plain sector ETF. If none qualify, hold SHY (short‑term Treasuries).

Regime-driven, rules-based strategy with Nasdaq hedges, sector rotation, and a Bitcoin tilt. Out-of-sample: 7.39% annualized return, 21.13% max drawdown, Calmar 0.35. It adds diversification and risk management to S&P exposure.