Single-Country Fund

Korea. That's a good one. Samsung. LG. KIA. And a few other big, fat shipping companies would be in here.

If you're bullish on one country's prospects, you can buy a fund that just comprises that country's industries and...have at it. The U.S. is really almost "not just one country," in that we have so many profitable industries, it'd be hard to even begin to think about the U.S. as a single "play" in a country fund. But Korea? Sure. Vietnam? Sure. Israel? Sure. As the countries get bigger (hello, China), they don't really deliver the key targeted investment volatility that an investor in it is seeking (and volatility is good when the motion is upward and you're long the stock or investment).

We're hoping to soon have a Mars Fund. C'mon, Elon. We're waiting.