ETH Top Trader Long/Short Ratio Contrarian Fade on 4H

Hypothesis

A simple long-and-short contrarian strategy on ETHUSDT perpetual futures using 4-hour bars and Binance's top-trader long/short account ratio as the sole signal. Binance publishes per-symbol L/S ratios computed from the top 20% of traders by collateral — a strong proxy for sophisticated positioning. The hypothesis is that when top-trader positioning becomes extreme in either direction, the trade is overcrowded and mean-reverts within 12-48 hours. The strategy is deliberately minimalist: one instrument, one supplementary data input (L/S ratio), one timeframe, four parameters total. Risk profile: 1.5% capital risk per trade with stronger-signal scaling (2% risk when ratio > 2.5 or < 0.5), fixed 1.5% adverse-move stop, 2% take-profit target, max 25% equity per position. The 4H timeframe + 12-48h hold window gives ~3-6 trades per month — low enough that the 0.10% RT fee is well below the 2% target per trade. Distinct from the existing SOL funding contrarian (uses funding_rate, 1H, single-side short) by using L/S ratio data, 4H timeframe, and bidirectional entries.