Bigworld, Trying to accurately time both sides of the market's movements, both up and down, is a tall order. Not many on Wall Steet can pull that off consistently, probably no one. Better to either play the long side or the short side, but not both.
I use the long side in part because the long term uptrend (going back many decades) will tend to eventually bail out a poorly timed trade. The SVIX is essentially a bullish bet on the stock market, but has some disadvantages compared to using the SPY or SSO. While the S+P 500 (SPY) is about flat from its July 2024 level, the SSO is only down 5%, but SVIX is down a whopping 60%. So as a bullish vehicle, the SVIX can't be held for extended periods.
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