The FT Vest Nasdaq-100 Buffer ETF - September is structured to mirror the price performance of the Invesco QQQ Trust SM, Series 1 (referred to as the "Underlying ETF"). For investors, this fund offers a protective buffer against the first 10% of any losses the Underlying ETF might incur, prior to fees and expenses. However, potential gains are capped at 16.97% before considering fees and expenses.