$10 → $0.00 fee $100 → $0.00 fee $1,000 → $0.00 fee $10,000 → $0.00 fee $100,000 → $0.00 fee $1,000,000 → $0.00 fee $10,000,000 → $0.00 fee $100,000,000 → $0.00 fee The number does not change with position size. Zero trading fees on Bitfinex.(Bitfinex)