The fourth largest asset management fund, State Street Global Advisors, controlling $3.5 trillion
Created the first S&P500 ETF (SPY)
They run the SPDR funds/ETFs or Standard & Poor's Depository ReceiptÂ
Above:
SPY, not listed in the picture above, is managed by State Street Global Advisors
SPY can be used as the baseline from which all ETFs should be judged since it represents the overall market
SPY is not evenly weighted across industries and you can use a total market ETF