US Large-Cap Cross-Sectional Short-Term Reversal, Dollar-Neutral Long/Short (USEQ, Daily Bars, 5-Day Lookback / 5-Day Hold, Weekly Rebalance, 3-Parameter) — the Commission-Free Fix for the Anomaly Crypto Fees Killed

A DOLLAR-NEUTRAL, CROSS-SECTIONAL LONG-SHORT short-term reversal strategy over a fixed basket of ~16 highly liquid S&P 500 large caps on the USEQ venue, daily bars, weekly (5-trading-day) rebalance. Every rebalance day it ranks each name by its trailing 5-day simple return, goes LONG the recent relative LOSERS (bottom ~30%) and SHORT the recent relative WINNERS (top ~30%), equal-weighted within each leg and sized so long notional == short notional (zero net beta). This is NOT a crypto momentum reformulation and NOT a cointegration pair (L95/L96): it is a decades-documented cross-sectional overreaction anomaly (Jegadeesh 1990, Lehmann 1990) whose ONLY robust historical killer is transaction costs. The factory already ran the identical mechanism on Binance USD-M ('Cross-Sectional 2-Day Reversal, Majors-Only') and it died — crypto's ~0.10-0.20% round-trip ate the ~0.4%/week reversal spread. The USEQ venue removes exactly that killer: zero commissions, ~0.02-0.05% round-trip spread+impact on mega-caps, and DECADES of split-adjusted daily history for a low-overfit test. It simultaneously fills three under-represented buckets: USEQ venue (1.3% vs decades of usable data), long/short direction (14.7% vs >=45% target headroom), and a mechanism family (short-horizon reversion) that is fee-dead everywhere in crypto but structurally alive here.