PDF EXCHANGE- TRADED FUND FOUNDATIONS ETF ...

AVERAGE ETF TRACKING THE S&P 500 INDEX "ETF liquidity (the ability to buy and sell efficiently at a fair price) depends on how often the ETF is traded on exchange, and how often its underlying securities are traded. The example here shows the average trading volumes and liquidity of ETFs tracking the US stock market using the S&P 500 Index." ................
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