The total value of exchange-traded fund assets fell last month alongside a decline in stock markets. Active funds surged as investors sought out professional fund managers to achieve better returns. Total assets in U.S.-listed ETFs dropped 3.4 percent to $6.7 trillion as the SPDR S&P 500 ETF Trust (SPY) and the Nasdaq-tracking Invesco QQQ Trust (QQQ) saw declines. Actively managed ETFs took in $8.8 billion during the month, while passive funds saw outflows of $6 billion. A report from London-based ETFGI said that active funds on a global scale pulled in $14.3 billion last month, surging 35 percent from the January total of $10.6 billion.