‹ 18.11.8 Seller of Underlying Securities in Short Position 18.12.1 Commission on Options › 18.12 Transaction Costs 18.12.1 Commission on Options 18.12.2 Clearing Fees 18.12.3 Commission and Clearing Fees on Exercise of Options 18.12.4 Stamp Duty ‹ 18.11.8 Seller of Underlying Securities in Short Position 18.12.1 Commission on Options ›