Always been a firm-believer in strong negative correlation with SPX.
Key is not matching SPX highs with VIX lows ie "catching the bottom" - it should be used as a supplementary indicator for overall market direction, by identifying key support/resistance areas for trend switches that aids you in developing a Trading Edge.
Chart Example:
October 2022 peak in VIX marked (temporary?) bottom in SPX
VIX unable to break above ~34 resistance zone after multiple attempts = gives way to lower highs & lower lows (change in trend)
SPX responds by making series of higher highs & higher lows
VIX bottoms around July 2023, unable to break below ~13 resistance zone (ie trend switch)
SPX peaks in July & proceeds to pull back until recent reversal - coinciding with dramatic drop in volatility
This is by no means a done & dusted chart - after all it's called the "Volatility Index" lol.
It will require ongoing tweaking, back-testing & confluence with SPX TA work, as well as vigilance of evolving macro-economic events which get rapidly priced into both indices.
Good luck :)
Note: "SPX TEMP BOTTOM horizontal line should be adjusted higher to sit on VIX peaks - can't edit chart & cbf re-publishing...but you get the idea, cheers.
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