A daily rule-based pair strategy that chooses between Nvidia (NVDA) and Eli Lilly (LLY) based on momentum and risk signals, using benchmarks like QQQ, JNK, VIXM, and GLD to avoid risky conditions. It rebalances every day and aims to be fully invested in either NVDA or LLY (or cash) depending on the signals.

- Every trading day, the system decides between NVDA (NVIDIA) and LLY (Eli Lilly) as the sole position. If conditions favor NVDA, you own NVDA; if they favor LLY, you own LLY; if not, you may park in cash. - It uses momentum signals (RSI) for NVDA and compares them to benchmarks like QQQ (Nasdaq-100), XLU (defensive sector), JNK (high-yield bonds), and VIXM/GLD (volatility and gold) to gauge relative strength and risk. - Additional tests look at how volatile NVDA has been (standard deviation of returns) and how its recent performance compares to longer-term trends (moving-average/return tests against options like TQQQ). - There is a separate “Abnormal Market Check” that uses different RSI tests (including GLD) to decide if market conditions are unusual; if they are, the system may avoid taking a new stock position. - It rebalances daily, so the holding can switch between NVDA, LLY, or cash each day. - The goal is to capture upside when one name shows momentum while keeping some protection if market risk spikes, using a web of benchmark signals to avoid false positives. - The implementation uses familiar tickers: NVDA (NVIDIA), LLY (Eli Lilly), QQQ (Nasdaq-100 ETF), XLU (Utilities ETF), JNK (high-yield bond ETF), GLD (gold ETF), VIXM (volatility ETF), TQQQ (3x Nasdaq-100 levered ETF).

Out-of-sample annualized return ~39.7% vs the S&P, with Calmar ~1.11 and Sharpe ~1.00. A daily NVDA/LLY momentum strategy targets bigger upside while using benchmark risk signals to manage drawdowns; note they can exceed SPY in downturns.