VIX
- The VIX is an index of expected 30-day volatility, calculated from S&P 500 index options.
- Its value is annualized volatility in percent, not a price level.
- Cboe calculates and publishes it.
VIX: definition, StockTicker24 display rules and dated production-data examples.
Definition
Cboe Global Markets publishes the VIX methodology. The cited document is version 6.0, last revised Feb 26, 2026. The VIX is calculated from the prices of S&P 500 index options across a wide range of strikes, puts and calls. It targets a 30-day horizon by using two expiries on either side of 30 days.
| Item | Content | Source |
|---|---|---|
| Input contracts | AM-settled SPX options and PM-settled weekly SPXW options (excluding those expiring with SPX) | Methodology v6.0 |
| Price used | Bid-ask midpoint; out-of-the-money options with a zero bid or ask are excluded from the regular index selection | Mathematics Methodology v5.0 |
| Input expiries | 23 to 37 days | Cboe article, Apr 24, 2023 |
| Target period | 30 days | Methodology v6.0 |
| Interest rate | U.S. Treasury yields | Methodology v6.0 |
| Index value | Volatility (standard deviation) × 100 | Methodology v6.0 |
The strike at or immediately below the forward level uses a separate put/call rule. The special opening quotation used for derivatives settlement also follows a separate selection process.
Cboe introduced the VIX in 1993, based on S&P 100 at-the-money options, and moved to the current method in 2003. VIX futures listed on Cboe Futures Exchange on Mar 24, 2004.
The index is published every 15 seconds in two windows: Regular Trading Hours, 9:31–16:15 Eastern Time, and Global Trading Hours, 3:15–9:25. These are publication windows, not stock-market trading hours.
StockTicker24 has no VIX card and does not show VIX values.
the VIX is a volatility figure in annual percent terms.
How it appears on StockTicker24
StockTicker24 has no VIX card. StockTicker24 does not show the VIX value or its change. The index cards on the board are perpetual-futures reference values.
| Figure | What it measures |
|---|---|
| VIX | Volatility derived from S&P 500 index option quotes |
| S&P 500 index | A stock index derived from constituent share prices |
| StockTicker24 S&P 500 card | Mid price of a perpetual-futures contract (mark price if mid is missing) |
The site retrieved its production board snapshot (/api/board-snapshot) at Oct 10, 2026, 05:01:18 UTC (capturedAt 05:01:10.627 UTC). The S&P 500 card's mid price was 7,820.35. That number is a price level for a perpetual-futures contract; it is not a VIX value and not the official S&P 500 index.
To put an annual figure on a 30-day scale, multiply by √(30 ÷ 365). This is the site's arithmetic, not a Cboe figure: a VIX of 20 corresponds to 20 × √(30 ÷ 365) = 5.73% over 30 days.
VIX, the S&P 500 index and the S&P 500 card are three different numbers.
Examples from the current board
Saved observation:
Tables scroll horizontally. Values use each contract’s quoted unit; no currency conversion.
No active VIX contract value is available in this snapshot; the S&P 500 card is a related reference, not VIX.
Price: mid price (mark if missing) · perpetual futures / vs. 24h earlier / / Saved / stale
Data: our board (perpetual-futures reference values), observed
Arithmetic examples
These are hypothetical levels, not API observations or a forecast. 30-day figure (%) = VIX × √(30 ÷ 365). The annual time convention uses 365 × 1,440 = 525,600 minutes.
| VIX | Annualized volatility | 30-day figure |
|---|---|---|
| 15 | 15% | 4.30% |
| 20 | 20% | 5.73% |
| 30 | 30% | 8.60% |
Questions
Is the VIX a price like the S&P 500?
No. It is volatility (standard deviation) × 100. It is not a price level.
Does a VIX of 20 mean the S&P 500 moved 20%?
No. 20 means 20% annualized volatility. A percentage change compares two index values, which is a different calculation.
Can I see the VIX on StockTicker24?
No. The board has no VIX card. Cboe publishes the VIX value.
Related
- S&P 500 symbol page
- Mid price
- Perpetual futures
- The S&P 500 outside U.S. cash hours and on weekends
- XYZ U.S. 100 symbol page
Sources
The production API examples are a fixed historical snapshot. Building this page does not fetch new prices.
External source titles and URLs were checked on Oct 11, 2026. The historical content retrieval dates are listed below.
- Cboe Global Markets, Cboe Volatility Index METHODOLOGY (v6.0; content retrieved Sep 30, 2026, as cited on the Japanese page).
- Cboe Global Markets, Cboe Volatility Index MATHEMATICS METHODOLOGY (v5.0; content retrieved Sep 30, 2026, as cited on the Japanese page).
- Cboe Global Markets, What the VIX and VIX1D Indices Attempt to Measure and How They Differ (Apr 24, 2023; content retrieved Sep 30, 2026, as cited on the Japanese page).
- StockTicker24 production API
/api/board-snapshot, retrieved Oct 10, 2026, 05:01:18 UTC.