SOL/ETH Ratio Z-Score Mean Reversion Long-Spread Pair (4H)

A DOLLAR-NEUTRAL CROSS-ASSET RELATIVE-VALUE PAIR strategy: simultaneously LONG SOLUSDT and SHORT ETHUSDT in equal dollar notional, triggered by extreme NEGATIVE z-scores of the SOL/ETH ratio. RATIONALE driven by the now-DEFINITIVE session finding (8+ strategies analyzed, TIER 1 trend-following EMPTY post-walk-forward, every long-only OHLCV directional alt-perp strategy has failed): the only working strategy class identified by the analyst is cross-asset relative-value pairs. Pipeline already has ETH/BTC (cointegrated major pair) and BNB/ETH (cointegrated major pair). Adding SOL/ETH extends pair-trading coverage to a third RELATIONSHIP with distinct underlying drivers: SOL captures L1-throughput/Solana-DeFi/meme-coin-platform narratives, ETH captures DeFi-blue-chip/staking-yield/ETF narratives. These drivers are largely uncorrelated — SOL can outperform ETH during Solana ecosystem rallies (Jupiter, meme coins, mobile staking) while ETH can outperform during DeFi summer or staking-related events. The 10-day z-score captures local mean-reversion of the ratio around its trailing average regardless of the longer-term trend direction. DESIGN CHOICES that ELIMINATE every session failure mode: (a) Dollar-neutral by construction (eliminates beta-to-crypto exposure that killed all directional alt-perp strategies), (b) MR on a CO-MOVING ratio (not absolute price — which failed), (c) ZERO supplementary data dependency, (d) NOT a contrarian short on a single instrument, (e) NOT oscillator entry, (f) NOT trend-following on alt-perp, (g) MAXIMALLY SIMPLE — only 2 decision parameters (z-score lookback=60, entry threshold=-1.5). DIFFERENTIATION FROM EXISTING PAIRS: ETH/BTC captures store-of-value vs smart-contract-platform divergence; BNB/ETH captures exchange-token-flows vs DeFi-blue-chip divergence; SOL/ETH captures throughput-L1 vs mature-L1 divergence — three independent edge sources for a robust pair-trading sleeve.