When markets get shaky, one chart flashes red before anything else: The Cboe Volatility Index, or VIX.

Also known as the "fear gauge," the VIX measures expected volatility in the S&P 500 Index ($SPX) based on options pricing. That means the VIX isn’t just showing what happened in the past… it’s forecasting what traders think might happen in the stock market over the next 30 days.

Smart traders and investors watch the VIX to gauge when fear is building, and more importantly — how to act on it.

VIX Levels and What They Signal

Tracking VIX levels can give traders a real-time pulse on market sentiment, while looking at longer-term VIX trends and trading ranges can offer insights as to when sentiment extremes might be ripe for a reversal.

• Under 15: Markets are calm… but watch out for complacency
• 15 to 20: Neutral territory — not too hot, not too cold
• Above 20: Rising fear and potential volatility
• 30 and above: Panic mode — expect large swings, both up and down

There’s an old Wall Street saying: “When the VIX is high, it’s time to buy. When the VIX is low, look out below.”

How to Read the VIX on Barchart

Here’s how to use Barchart to track the VIX like a pro:

• In the search bar, type $VIX
• Click into the CBOE Volatility Index ($VIX) page
• Open the Interactive Chart
• In the chart view, click compare and type $SPX for a comparison of the S&P 500
• Select “New Pane,” adjust scale to “actual values,” and hit Apply

You’ll now see how the VIX and the S&P 500 tend to move inversely — when the market drops, the VIX tends to spike.

Why Traders Watch the VIX

Understanding how the VIX works can help you:

• Spot moments of panic before the market reacts
• Time options trades when volatility is priced in or about to spike
• Hedge your portfolio during risk-on or risk-off periods
• Gauge investor sentiment during earnings, macro news, or global events

Watch: A Quick Breakdown on How to Use the VIX

Watch our latest reel to learn how to read the chart, spot warning signs, and turn fear into opportunity.

Barchart Tools to Use Alongside the VIX

1. Interactive Charts: Compare $VIX to $SPX or any other asset
2. Put/Call Ratios: Gauge bullish vs. bearish sentiment
3. Options Flow Tracker: Spot unusual activity
4. High Implied Volatility Options: See which stocks are pricing in big moves

Final Takeaway

The VIX is more than just a warning flag; it’s an actionable sentiment signal that tells you what traders are bracing for. Instead of panicking when volatility hits, learn to spot the signs early so you can act with confidence.

Watch the video now for the full breakdown, and learn how to use fear as your edge.