RE:RE:BetaPro S&P 500 VIX Short-Term Futures™ Bull+ ETFHorizons HVU is designed to provide daily investment results, before fees, expenses, distributions, brokerage commissions and other transaction costs, that endeavour to correspond to twice the daily performance of the S&P 500 VIX Short-Term Futures Index™
where is the twice upward and know downward it's twice
cheers