Market data connections
Why Do My Prices Differ From Another Platform?
Feed coverage, entitlements, timing, session, and quote selection can make two platforms display different prices.
What problem does this solve?
A quote or trade value differs from a broker or another market screen.
Quick answer
Most comparisons fail because the screens show different feeds, price fields, timestamps, or sessions. IEX and SIP coverage are not identical.
Steps
- Record the symbol and exact time shown on both screens, including time zone.
- Check whether each value is bid, ask, last trade, official close, or chart bar.
- Compare the regular or extended session and the provider feed used by each platform.
- Repeat the comparison with matching fields and timestamps before reporting a mismatch.
What you should see
You can usually identify the source of the difference or produce a precise report for support. A live IEX print does not have to equal a consolidated SIP print.
If it still doesn't work
Send the symbol, feed, field, timestamps, and a cleared screenshot. Remove account identifiers and credentials.
Screenshot or video
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