With the stock markets surging, more firms are adding special spices to their ETF products, and investors are digging in.
Barrons reports that money is flowing to "unconventional index exchange-trade funds" at a rate that is more than twice that of last year.
Such unconventional products include those engineered to favor dividend stocks, low volatility, tracking the market, what have you.
Buying into these funds, Brendan Conway writes, means that investors are embracing more active and tactical investing strategies, and are likely paying a premium.
The products noted in the article include:
WisdomTree's WisdomTree Japan Hedged Equity Fund
SSgA SPDR S&P 500
Guggenheim's Guggenheim S&P 500 Equal Weight
Vanguard's Vanguard S&P 500
iShares' iShares MSCI USA Minimum Volatility Index
Read more on what is going on with these kinds of products in
Barrons. 
Edited by:
Tommy Fernandez
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