QYLD has high percentage in 10 holdings of the Nadaq 100 Index due to their heavy weighting in the Index... https://finance.yahoo.com/quote/QYLD/holdings?p=QYLD This lower diversification of risk is based on the Index that a buy write strategy of covered call activity is used on to produce income... Many folks count on the 9 companies in that ranking to be survivors... Don't tell Meme before buying some... so we watch...LJ