The European ETF market may grow to $1.1 trillion by 2020 from $725 billion now as indexing gains traction.

Structure allows for efficient accumulation and distribution of investment income.

The concern is that passive investing can stifle competition.

Equities have supplanted bonds as the market to watch as drama builds around funding the U.S. government.

Volatility-starved traders may need to wait until 2018 for the spark that gets the bond market moving again.

It was a calm summer week as investors anticipated information from the U.S. Federal Reserve, The European Central Bank and elsewhere.