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The Unusual Case of $VIX Rising with $SPX

By Lawrence G. McMillan

Last week, something unusual happened — both the S&P 500 ($SPX) and the CBOE Volatility Index ($VIX) rose every single trading day. It’s a rare alignment, and one that tends to grab the attention of volatility watchers. Historically, $SPX and $VIX move in opposite directions about 75% of the time, so a full week of synchronized gains stands out.

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