Note that similar funds -- the Republican Policies Fund (GOP) and the Democratic Policies Fund (DEMS) -- launched to almost no fanfare. They failed to attract many assets and both closed up last April.

But let's take this further, and offer up a few ideas for future ETF's and their ticker symbols:

BANK: Since the financial crisis, banks, brokers and asset managers have underperformed the broader market, despite being cheaper. Whether that is an opportunity or a warning sign is as yet unknown.

LGBT: Governance (the “G” in ESG) of companies with gay and lesbian friendly corporate policies.

HYPE: An ETF that will invest in companies that promote high-risk/potentially high-return investment ideas.

ELON: See HYPERICH: Invest in the companies led by billionaire chief executive officers or the shelters they use for tax avoidance.

TANK: A broad-based inverse ETF that does well when the market falls.

PORN: The industry has driven a huge number of online innovations, from streaming video to micro-payments. One single ticker allows investors to participate without having to clear their browsing history.

GANJ: Another cannabis ETF, but with two share classes, A and B (you want the A shares). And there's room for more: How about TOKE?

TIME: Time-travel technology ETF -- it will (did) launch in 2009, and bought up shares of cheap companies it knew will (did) perform best. I will (did) put all of my capital in this one as soon as it launches (launched).