Hyperliquid ATOM–ALGO–ETC Supertrend with a Causal Shadow-Equity Gate

Hypothesis

Derived by the Research Lead from ChaoZhang's article, https://www.fmz.com/strategy/438771: operationalize its equity-curve gating concept on three independent Hyperliquid perpetuals using 4-HOUR bars. The supplied Pine code trades every Supertrend flip and only plots filtered performance; this adaptation explicitly implements a causal gate rather than claiming to reproduce its orders. Each instrument maintains an ungated virtual reference strategy while actual trading may pause. Market orders execute at signal-bar closes, the registry's equivalent of next-bar-open execution on continuous markets. Use available 4H history without assuming more than approximately two years. Tier-0 taker fees are 0.045% per fill, verified in [Hyperliquid's official fee schedule](https://hyperliquid.gitbook.io/hyperliquid-docs/trading/fees).