VIXCLSFinancial ConditionsDailyCBOE Volatility Index (VIX)
The VIX measures implied 30-day S&P 500 volatility from options prices. Widely known as the "fear index."
Update frequency
Daily
Unit
Index
Historical coverage
1990-01/..
Why VIXCLS matters
Risk-off/risk-on regime detection, market-stress alerts, and options-based hedging cost analysis.
Get the latest value
Fetch the most recent CBOE Volatility Index (VIX) reading with a single GET request. Free tier includes 100 calls per day.
# cURL
curl -H "X-API-Key: brd_your_key" \
https://api.bullrundata.com/api/v1/indicators/VIXCLS
# Python
import requests
r = requests.get(
"https://api.bullrundata.com/api/v1/indicators/VIXCLS",
headers={"X-API-Key": "brd_your_key"},
)
print(r.json())
# JavaScript
const res = await fetch("https://api.bullrundata.com/api/v1/indicators/VIXCLS", {
headers: { "X-API-Key": "brd_your_key" },
});
const data = await res.json();
Full historical time series
Retrieve the complete CBOE Volatility Index (VIX) history with min/max/change statistics. Use the range parameter to control the window (1m, 3m, 6m, 1y, 2y, 5y — Enterprise plan extends further).
curl -H "X-API-Key: brd_your_key" \
"https://api.bullrundata.com/api/v1/indicators/VIXCLS/timeseries?range=5y"
Aliases
You can also address this indicator using these shortcuts — the API resolves them to the canonical series ID transparently:
VIX