How Make Money 100% of the Time
This is no joke - it's a GUARANTEED way to make money over the long term, the short term and the medium term. All you need to do is follow this perfectly sound advice. If anyone can poke a hole in this system feel free. The only downside I can see is that you won't make a lot, so if (and that's a big if) the market zooms up 200% over the next five years, you won't make anywhere close to that kind of dough. But if you think the market will stagnate, drop or you just don't have the stomach for risk, I am going to give you a guaranteed method of making money.
First, you need to understand that 3x ETF's suck. They are great for short term trades (if you guess, err - invest, correctly), but over the long term they will never track 3x properly. They will always come up just a bit short. So, investing long term in a 3x is pretty foolish.
However, you don't want to short a 3x ETF and be wrong. Sure they won't track 100% correrctly, but if that sector of the market jumps 100%, you won't lose 300%, but you'll probably be down 290%.
The GUARANTEED method to make money is to SHORT two corresponding ETF's. For example, FAZ & FAS. FAZ is short the financial sector and FAS is long.
I repeat - you won't make a TON of money, but you WILL make money over every period of time. If you think the market will tank, but don't have the stomach to short the market due to volatility, or just want to earn more than 0.25% in your money market account, you can't go wrong.
Good luck and good investing!