If you know what you're doing these are handy tools to have in the toolbox.
If you don't know what you're doing
short 'em both in a paired trade stay far away.
From Sober Look:
Not enough leverage? Want more slippage? Try some GASX
For those who love risk, take a look at DirexionShares. It exemplifies the proliferation of leveraged ETFs - particularly the ones that give you three times the return (3 x ETFs). Take for example the one with the ticker symbol GASX - that's right, the same name as the famous medicine. It's an ETF that is 3x short natural gas equities.GASX Fund Objective: - "The Direxion Daily Natural Gas Related Bear 3x ETF seeks daily investment results, before fees and expenses, of 300% of the inverse (or opposite) of the performance of the ISE Revere Natural Gas Index. There is no guarantee the fund will meet its stated investment objective."From its inception (about two years ago) GASX is down 38.5%. The negative 3x the natural gas index (which is what the ETF is supposed to be tracking) is up 17% for the same period. If you bet against natural gas companies 2 years ago, you would have been right, but this ETF would have lost you close to 40%. Ouch.
What makes this even more interesting is that its twin, GASL, the 3x long natural gas index ETF is is also down for that same period - a whopping 48%.
What gives? This is what's known as leveraged ETF slippage (illustrated here). Over time you lose either way. And the higher the volatility the more you lose. The chart below shows GASX daily annualized vol - over a period of 250 business days - approaching 100%. Using shorter periods, the volatility measures are even higher. That's why slippage is such a big problem....MORE