PM Images The SPDR S&P 500 ETF Trust (SPY) and individual sector ETFs such as The Energy Select Sector SPDR Fund ETF (XLE) have become staples throughout the investment community. While ETFs such as SPY and XLE are talked about regularly, their parent company, State Street Corporation (NYSE:STT) seems to fly well under the radar. Similar to BlackRock (BLK) and Vanguard, STT is a premier investment management and servicing company with $4.3 trillion in assets under management (AUM). Through SST and its s ...