Data
Changes in CME halt logic
dxFeed announces a recent refinement in our processing of CME market data to ensure improved alignment with CME Group’s specifications.
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All Products
Data
Testing Participation
Connectivity
Fundamentals
C and .NET APIs
Market data API
Aggregated Data Service
dxPrice
IV
WebSocket
Java API
Webservice
C and .NET APIs
Migration of NuGet package distribution
dxFeed would like to inform you about a recent change in the distribution of NuGet packages.
Fundamentals
Upcoming Fundamental Equity Data Upgrade
dxFeed gives advance notice on major updates in fundamental equity data, including changes to field names, feed structure, and how some data is calculated. The updates will take effect at the end of August 2026. No immediate action is needed, but please watch for our future updates.
Data
Odd Lot Quote Data — CTA/UTP SIP Changes
dxFeed outlines its plans regarding the changes that will take effect Monday, April 27, 2026, when the CTA/CQ and UTP Securities Information Processors (SIPs) will begin mandatory dissemination of Odd Lot Quotes as required by the SEC’s Market Data Infrastructure (MDI) Rule.
Data
Change in ExchangeCode Parameter for Cboe Futures Data
To unify the approach among our data feeds and ensure consistency, starting from February 16, 2026, the Cboe Futures feed will no longer publish the value "C" in the "ExchangeCode" field. Instead, it will use '\0'.
Data
Fractional Shares Reporting Support
dxFeed is implementing support for the upcoming FINRA enhancements to equity trade reporting facilities that introduce fractional share quantity reporting.
Fundamentals
Changes in the Asset Classification Controllers
dxFeed will implement updates to NACE and NAICS codes involving data revisions only with no structural changes.
Data
New tradeId Field for TimeAndSale, Trade and TradeETH Events
dxFeed is extending its data model by adding a new field, tradeId, to events that provide trade information: Trade and TimeAndSale.
Connectivity
SIFMA and FIA Industry-Wide BC and DR Testing Participation 2025
On Saturday, October 25th, 2025, dxFeed will participate in SIFMA’s annual Industry-Wide Business Continuity (BC) Test and FIA’s Disaster Recovery (DR) Test.
Data
Support for Round Lot Changes for CTA/UTP Feeds
dxFeed is announcing support of SEC's new definitions for "Round Lot" information under the Market Data Infrastructure Rules for CTA/UTP data feeds.