FINRA levies a Trading Activity Fee (TAF) for sales of covered equity securities that we pass through to you. The FINRA TAF for stock sales is currently $0.000119 per share with a per-transaction cap of $5.95. For example, if you sell 1,000 shares of stock the fee would be the number of shares [1,000] multiplied by $0.000119 which equals $0.119. The FINRA TAF for option sales is currently $0.002 per contract. For example, if you sell 100 options contracts, the fee would be the number of contracts  multiplied by $0.002, which equals $0.20.
Fees: FINRA TAF