Research from Water Tower Research, Water Tower Research

Water Tower Research

Water Tower Research is a leading equity research firm that provides research on micro, small and mid cap companies.

Water Tower Research was founded by Wall Street veterans after witnessing a fundamental shift in the investment research industry with the result being a declining knowledge base among investors, a lack of awareness and a shrinking pool of fundamental research being conducted on companies across the small-cap and micro-cap spectrum. The same issues are now increasingly occurring in the mid-cap space. This sea change within the investment community is impacting not only the companies themselves but also current shareholders and potential investors. With significantly less active sell-side sponsorship by Wall Street, a substantial information gap has developed between companies and various constituents in the financial community. The net result is fewer channels for insight and information to flow between companies and investors.

Research from Water Tower Research

Equity Research Firm

Thematic (Sector/Industry)

United states It / Thematic (Sector/Industry)

<div><ul><li>WTR AI Private Pools Index update. Using data from PM Insights, we track private AI company valuations and created a market value-weighted WTR AI Private Pools Index.</li><li>As of 5/11/26, the index had 38 active constituents and a total market value of $2.20 trillion. The two largest constituents are Anthropic (~41.0%) and OpenAI (~38.2%).</li><li>Another big month increase driven by Anthropic. WTR AI Private Pools Index performance for month ending May 11, 2026*. </li></ul></div>

WTR AI Private Pools Index update. Using data from PM Insights, we track private AI company valuations and created a market value-weighted WTR AI Private Pools Index.As of 5/11/26, the index had 38 active constituents and a total market value of $2.20 trillion. The two largest constituents are Anthropic (~41.0%) and OpenAI (~38.2%).Another big month increase driven by Anthropic. WTR AI Private Pools Index performance for month ending May 11, 2026*. 

AI Flow Private Pools Newsletter : Exploring Private Company Valuations in AI - 18 May 2026