Entry: Scan 560+ Binance USDT-M perpetuals every 15min. Rank by rate × volume score. Open top 3 positions above 0.10%/8h threshold.
Exit: Close when: rate drops below 0.03% for 3 consecutive periods | rate turns negative | position cannot recover costs within 3 periods.
Sizing: 500 USDT per position · 2× leverage · Round-trip fee 1.40 USDT (spot 0.1%×2 + perp 0.04%×2).
Profit: At 0.10% rate, each period earns 0.50 USDT. Breakeven in ~3 periods (24h). Pure profit thereafter.