Cboe VIX Surges 5.7 Points to Above 28, Highest Since March 31

The Cboe Volatility Index (VIX) surged by as much as 5.7 points on November 4, 2026, rising above 28. This marked the highest VIX level since March 31, when the S&P 500 rebounded after a significant selloff amid geopolitical tensions. The intraday range for the VIX exceeded 11 points, its largest one-day move since April 9, reflecting increased market uncertainty.

Despite the S&P 500 falling by 3%, traders argue that the VIX should be even higher based on the rule of thumb that every 16 points on the VIX corresponds to a 1% move in the index. The S&P 500 was on track for its largest drop since April 2025. Options trading activity on the VIX was elevated, with about 800,000 calls traded by midday, which was 3.5 times above the 30-day average.

This volatility spike comes amid ongoing concerns about a bear market in semiconductors, most notably the VanEck Semiconductor ETF, which experienced a 3% decline, adding complexity to the market dynamics. Analyst Noel Smith noted the movement appears driven by liquidation rather than changes in macroeconomic factors like oil prices or interest rates. This increase in volatility and trading volume signals heightened investor caution and hedging activity.

For investors, the jump in the VIX indicates rising uncertainty and risk in the markets, which could translate into increased trading costs and potential for larger price swings. The large volatility move also reflects a shift toward hedging by market participants, particularly in sectors such as semiconductors that are experiencing sustained selling pressure.