I haven&#x27;t looked into it in years, but my recollection is that you don&#x27;t buy the inverse ETF, you short the corresponding long ETF.<p>That&#x27;s because there is inherent &quot;decay&quot; in the price of the ETF - if the market just keeps going sideways, the ETF slowly trends downward over time.<p>So if you buy the inverse ETF and the market doesn&#x27;t go up at all, you still don&#x27;t have a profitable trade - you should short the long ETF.<p>Is that still the case ?