Uses shipping-rate momentum to decide when to take stock risk. Buys a 3× S&P 500 fund by default when conditions look favorable, steps aside to T‑Bills if the market is too hot, and only buys during risk‑off if the S&P 500 is extremely oversold.

- First, it checks BDRY, an ETF tied to dry bulk shipping rates (a pulse of global trade). If its 60‑day RSI (0–100 gauge of recent price strength; >50 = uptrend) is above 50, it’s “risk‑on.” Otherwise, “risk‑off.” - Risk‑on: buy SPXL (a fund aiming for 3× the S&P 500’s daily move) unless the S&P 500’s 10‑day RSI is above 80 (too hot), then sit in BIL (T‑Bills). - Risk‑off: sit in BIL unless the S&P 500’s 10‑day RSI is below 30 (washed out), then buy SPXL.

Macro-timing strategy uses shipping signals to tilt to leveraged S&P when favorable and cash otherwise. Out-of-sample: ~29% annualized vs ~18% for SPY; Calmar ~1.31, Sharpe ~0.88 - higher risk-adjusted growth with managed drawdowns.