Madison and Wall is a newsletter about global advertising, media, technology and more.

This Substack is written by Brian Wieser, CFA.

I am, at heart, an analyst. But not an "industry analyst" nor purely a "financial analyst." I'm more strategically oriented than most people who have worked on Wall Street and more conscious of capital markets issues and investor thinking than most who focus on strategy.

My writing is informed by experiences and research performed while working at financial institutions large and small (Lehman Brothers, Deutsche Bank and Pivotal Research), two of the world’s largest advertising agency groups (WPP and Interpublic) and one of the industry’s pioneering ad tech companies (Simulmedia).

You can learn more about me and my services at

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Insights About the Business of Advertising, Ad-Supported Media and Related Technologies


Strategic financial analyst of global advertising, technology and marketing services businesses, informed by relationships with investors as well as media company, marketing, agency and ad tech practitioners.