CNBC reported Aug. 5 that the S&P 500 hit record highs while the VIX held near 20.
Why it matters: The move suggests traders are bidding up stocks without fully shedding volatility protection. That can affect hedging and short-term positioning in large-cap equities.
- CNBC reported Aug. 5, 2026 that the S&P 500 touched record highs while the VIX stayed near 20.
- The volatility index also rose over the prior five trading days even as stocks moved higher.
- Cboe says the VIX measures expected 30-day volatility on the S&P 500 and is often, but not always, inversely related to stock prices.
- Cboe's 2025 research note says the VIX can rise in "spot up, vol up" regimes.
CNBC reported on Aug. 5 that the S&P 500 was setting records even as the Cboe Volatility Index held near 20 and moved higher over the prior five trading days. CNBC's report framed that as an unusual combination because stocks and volatility often move in opposite directions.
Cboe says the VIX is built from real-time S&P 500 options prices and is intended to estimate expected volatility over the next 30 days. Its methodology page says the index is often, but not always, inversely related to stock prices.
Cboe has also said the index can rise in so-called "spot up, vol up" regimes. In a 2025 paper, the exchange said the VIX is better understood as a measure of demand for optionality than as a simple fear gauge.
The report does not identify a single driver for the move. But it points to a market where equities are climbing while demand for protection has not fully faded.
By the numbers
- 20 - the VIX level CNBC said it was holding near on Aug. 5, 2026.
- 30 days - the forward horizon Cboe says the VIX is designed to reflect.
- 5 trading days - the period CNBC said the VIX had risen even as stocks advanced.