As you probably know, overtime these stocks which move in multiples of the S&P or Nas lose value. Example SP starts at 100 and SSO starts at 100 SP goes up 10% to 110, SSO goes up 20% to 120. Next day SP goes down 10% to 99, SSO goes down 20% to 98. So overtime if the market goes up and down the SSO will lose value even if the SP goes slightly up or remains the same. So would it be smarter, rather than using inverse ETFs, why not short Long Multiple ETFs? The 3x ETFs would have an even greater loss of value. Input?