Index
US CompositeUSCOMP
US Composite, served as the index code USCOMP. Every figure on this page lags the feed by 15 minutes. The same data, in real time, is one API call away.
USCOMP price chart
Historical bars for USCOMP are not on the delayed view yet. The API serves its live quote now.
- Previous close
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- Day range
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- 52-week range
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- Volume
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- Avg volume (30d)
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Integration
USCOMP in your app, in real time
The page above is the delayed view. These are the calls that return USCOMP live: one snapshot for the headline numbers, one aggregate call for the chart, one WebSocket subscription for every tick after that. Same symbol, same field names, on every asset class.
curl "https://api.tickerlayer.com/indices/snapshot/USCOMP" \
-H "x-api-key: YOUR_API_KEY"curl "https://api.tickerlayer.com/indices/agg/USCOMP/1/day/2025-09-07/2026-09-07" \
-H "x-api-key: YOUR_API_KEY"{
"action": "subscribe",
"channels": ["indices.quotes", "indices.trades"],
"symbols": ["USCOMP"]
}{
"symbol": "USCOMP",
"last_price": null,
"prev_close": null,
"change": null,
"change_percent": null,
"last_timestamp": null
}More indices
Other indices on the same key
Frequently asked questions
Is the USCOMP price on this page real-time?
No. The price, the ranges, and the chart are delayed by at least 15 minutes and refresh periodically. They are here so you can see the instrument the API serves before you integrate. Real-time USCOMP data is delivered through the REST snapshot and quote endpoints and the WebSocket channels on an API key.
Where does the USCOMP data come from?
TickerLayer builds derived, indicative market data from non-exchange inputs such as CFD-style pricing references, contributor pricing, and over-the-counter activity, normalized into one schema across every asset class. It is not official venue data and should not be presented to your users as such.
How do I get USCOMP market data through the API?
Call GET /indices/snapshot/USCOMP for the latest price, previous close, and change, GET /indices/quote/USCOMP for bid and ask, and GET /indices/agg/USCOMP/1/day/{from}/{to} for OHLCV bars. Subscribe to indices.quotes or indices.trades on the WebSocket to stream updates as they happen.
Which bar intervals are available for USCOMP?
One, five, and fifteen minute bars, one and four hour bars, and daily bars, each with a documented maximum window per request. Daily history reaches back several years for most instruments; intraday history is capped by interval so responses stay fast.
Can I show USCOMP data to my own users?
Yes, inside your product or workflow on a commercial plan. Redistributing the raw feed, reselling it, or publicly displaying it as a standalone data product needs a separate agreement. If your use case looks like any of those, talk to us before you launch.
Is USCOMP available on the free tier?
Every account starts with 3,000 free REST requests a month, which is enough to integrate and test any index. Paid plans add volume, WebSocket streaming, and commercial use.
Delayed, derived, indicative data for informational and integration purposes. Not official venue data, not investment advice, and not a system of record. See the market data disclaimer.