See big sell order at getting executed at $10.30, $10.20, $10.10 at Exchange A. Short sell at $10.30 on Exchange B. When the big order comes, rebuy at $10.20.
See big sell order at getting executed at $10.30, $10.20, $10.10 at Exchange A. Short sell at $10.30 on Exchange B. When the big order comes, rebuy at $10.20.