Quick question: What's the biggest holding in the SPDR Retail ETF (XRT)? It's Netflix, with 1.68% of assets. Money poured into the XRT yesterday, with the fund growing AUM by 31.25% (Amazon is a 1.07% holding). The Transports (IYT) saw a big inflow, growing AUM by 17.9%. Losing funds was the SPDR Oil & Gas Explorers (XOP), down 15%.