A LONG-SHORT, MARKET-NEUTRAL, MULTI-INSTRUMENT relative-value strategy on Hyperliquid perpetuals that harvests the well-documented SHORT-HORIZON cross-sectional REVERSAL anomaly in crypto (over 1-3 day windows the biggest relative losers rebound and the biggest relative winners give back, driven by overreaction to news/liquidation-driven overshoots that correct as liquidity replenishes). This is deliberately a NON-MOMENTUM, NON-FUNDING selection edge — the exact 'non-momentum-rank selection edge' L52 asks for — and it is the horizon-opposite of the one strategy that survived here (medium-term 4H/daily momentum confluence), so it is not a re-skin of that template. Every 3 days, rank a fixed universe of ~12 liquid HL perps by trailing 3-day return; go LONG the 3 biggest losers and SHORT the 3 biggest winners. Legs are INVERSE-VOL weighted (weight ~ 1/ATR%) and then scaled to EQUAL long/short notional (dollar-neutral) — this directly defuses the two ways cross-sectional baskets have died here: dollar-neutrality removes the market-beta/outlier-day return that inflated prior 'composite' Sharpes, and inverse-vol weighting stops a single volatile alt from dominating PnL. Fills three under-represented buckets at once: HYPERLIQUID venue (6.6% vs >=20% target), long_short direction (13.5% vs long_only 86.5%), and multi-instrument scope. Distinct from the pending HL funding-carry basket (different signal: price reversal, not funding). Uses 1-DAY bars over HL's full history (daily is not timeframe-limited on HL), so walk-forward OOS and the 15-day holdout are well populated, and the book always has names to trade (no no_trades risk). Small fixed parameter set (universe size, lookback=3d, names/sleeve=3, rebalance=3d) to resist overfitting.