Intelligence for the people who keep markets running

Exchange notices get buried in PDFs. Regulatory deadlines slip through the cracks. A 1Gbps connection quietly stops supporting multicast and someone's feed goes dark at 9:31am. Market Data News was built to prevent that — to surface the technical and regulatory changes that matter to data engineers, operations teams, compliance professionals, and infrastructure architects before they become problems.

We cover the full stack: exchange protocol updates, NMS plan amendments, regulatory deadlines, feed changes, port migrations, and the broader market structure shifts that shape how data moves. Our FeedWatch calendar is the operational backbone — a living reference for every deadline and action item affecting the industry.

We are editorially independent. We don't take direction from exchanges, data vendors, or financial sponsors. Our only obligation is to the professionals who rely on this information to do their jobs.

Inside FeedWatch

FeedWatch is our flagship product — a continuously updated calendar of exchange notices, regulatory deadlines, feed changes, and infrastructure migrations that require action from market data professionals.

FeedWatch Professional adds full historical archive access, email alerts by organization and category, and an Action Required digest delivered before the open. View the calendar →

How we approach coverage

Every piece of information on this site traces back to a primary source — an official exchange notice, a regulatory filing, an SEC order. We link to the source on every FeedWatch entry. We don't publish rumors or unverified information.

When we characterize the impact of a change as Critical or High, that assessment reflects the operational consequence for firms running market data infrastructure — not a marketing judgment. We err on the side of surfacing things that matter and letting professionals decide what to act on.

We have no sponsored content, no paid placements, and no arrangements that could influence our coverage. If that changes, we'll say so clearly.