Burnham Park adds Sentinel AI’s retail-investor sentiment data to its research services

Retail investors’ online conversations are getting a route into Burnham Park Capital Markets’ research services. The investment bank announced a partnership with Sentinel AI on November 3, 2026, to bring its sentiment-tracking platform into research and capital-markets work. The companies say management teams and institutional investors will gain real-time insight into those discussions.

Burnham Park’s stated rationale is that retail investors have become a lasting force in stock prices, particularly for small-cap and mid-cap companies. The announcement puts their share of U.S. equity trading activity at roughly 36%. That is the company’s figure; the release does not identify the calculation or its measurement period.

Turning stock conversations into research inputs

Sentinel says its platform continuously scans social media and online news for conversations about individual stocks. It identifies emerging storylines and shifts in sentiment—the positive or negative views expressed about a company—and surfaces them as they develop. The service is aimed at public companies and the investor relations teams that communicate with shareholders.

The partnership brings that intelligence into Burnham Park’s research and client workflows. The intended users span both sides of corporate communications: management teams seeking to understand how their companies are perceived, and institutional money managers assessing the conversations that the companies say help shape valuations.

Listening to investors—and responding

Sentinel’s stated purpose goes beyond observing investor opinion. The company describes its platform as helping investor relations teams amplify bullish sentiment and address bearish narratives. Its offering therefore combines monitoring with information intended to guide how companies engage with investors, rather than serving only as a research feed for money managers.

For now, the announcement establishes the partnership and its intended use, not a demonstrated investment advantage. It includes no accuracy evaluation for Sentinel’s sentiment analysis or evidence that using the platform improves investment returns. Whether these signals lead to better investment decisions remains untested in the announcement.