Exchange-traded funds (ETFs) offering the highest dividend yields typically include specialized income-generating vehicles such as covered call (buy-write) funds, leveraged equity funds, emerging market bond portfolios, and specialized mortgage REIT ETFs. Prominent examples include funds like the JPMorgan Equity Premium Income ETF (JEPI) or various ultra-high-yield sector funds that can deliver double-digit percentage yields, though investors must balance this high income against potential asset volatility and limited capital appreciation.