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Fintech Newsletter

Net Interest

Marc Rubinstein

Substack Weekly

publishes about weeklyobserved from recent posts

Financial sector insights from a former hedge fund manager with 25+ years experience. Deep dives on banking, lending, and financial markets.

Recently covered

The newsletter has recently published articles about financial engineering, various business deals and acquisitions, and artificial intelligence financing. Coverage has included pieces on specific companies such as Apollo, Brookfield, and Guggenheim, as well as broader topics like agent systems and European financial developments.

As of Oct 18, 2026 · AI-generated summary

Recent posts

BankingCapital MarketsNews & AnalysisWealthTech & Investment Tech

Listed since Apr 24, 2026 · Last verified Oct 18, 2026