Question: where are most etfs traded?
Answer: SPDR S&P 500 ETF SPY. ...  Invesco QQQ QQQ. ...  iShares Russell 2000 ETF IWM. ...  iShares MSCI Emerging Markets ETF EEM. ...  iShares iBoxx $ High Yield Corporate Bond ETF HYG. ...  iShares MSCI EAFE ETF EFA. ...  iShares 20+ Year Treasury Bond ETF TLT. ...  Financial Select Sector SPDR XLF.