Can you beat the market by investing in double long ETFs? [duplicate]
NO. All the leveraged ETFs are designed to multiply the performance of the underlying asset FOR THAT DAY, read the prospectus. Their price is adjusted at the end of the day to reflect what is called a NAV unit. Basically, they know that their price is subject to fluctuations due to supply and demand throughout the day - simply because they trade in a quote driven system. But the price is automatically corrected at the end of the day regardless. In practice though, all sorts of crazy things happen with leveraged ETFs that will simply make them more and more unfavorable to hold long term, the longer you look at it.