While exchange traded funds continue to flood the market, a record number of existing ETFs are failing or in trouble. Last year, 308 new exchange traded funds were launched, but almost 90 percent of them were unable to attract the $30 million regarded as a minimum threshold amount for profitability, according to CNNMoney (See “Is the ETF bubble about to burst?”), citing XTF, a firm that researches and advises exchange traded funds globally.