I like to daytrade the index ETFs….y’know, TNA/TZA BGU/BGZ SSO/SDS and a multitude of other bull/bear pairs. Depending on how the market is doing, I jump on either the bull or bear ETF and scalp it for as long as all day sometimes….and other times for 60 seconds….sometimes for a profit and other times for a loss. You know how it goes. 
As I was watching the grass grow at mid-day today, I was daydreaming at where I would be if I had bought some pairs at the beginning of the year. Logic would be that one side would be up and the other side down. But no!
On January 4th this year, TNA opened at $44.66 and closed today at $33.58, down about 12%. The Russell is down about 4% for the year, and since TNA is a 3X ETF, being off 12% is about right.
So TZA should be up about 12%, right? No! TZA opened the year at $47.05 and closed today at $39.06, down about 15% for the year. What!? The bear ETF is down more than the bull ETF? Yes. So if you had decided to put on some sort of spread bet taking both sides to hedge yourself, you’d be a real loser! 
My lesson here is … not to hold leveraged ETFs for more than a day. Yes I have held overnight and have both profitted and lost on the gamble…. But now just daytrade or scalp….make more money and sleep a whole lot better.
Here’s an article that should be read by anyone trading leveraged ETFs. This study is based on 2X ETFs so the issues are greater in the 3X and 4X ETFs available now. The explanation is a lot more technical than what my daydreaming came up with. How Long Can You Hold Leveraged ETFs?
For all the periods studied except one-year, tracking error grows larger … and more negative … as the expected return grows.
The results of the study are clear. As you move further away from the targeted one-day time period, tracking error on these funds grows.
Sometimes, entranced by the screens, watching equities, options and futures change colors, charts moving in a wave, and indicators pointing in every direction, I just have to scream....
