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Approaching Peak Proprietary

Alphacution presents evidence for how dominant prop firms are starving smaller competitors out of business - a sign that we may be approaching some kind of peak. One of the highlights of this post is a rare, long-term chart of the rise of the top proprietary traders - including Citadel Securities, Jane Street Group, and Susquehanna International Group (SIG) - and the decline of banks in the US equity option market...
By Paul Rowady | September 26, 2025 | For Subscribers
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Optiver’s Charm Offensive – Part I (Updated)

Bloomberg's recent exposé on legendary Amsterdam-based derivatives trader, Optiver, is heavy on gloss and sabre rattling - against market leaders like Citadel Securities, Jane Street, and Susquehanna International Group - and light on strategic and competitive analysis. In Part I of this Feed post, Alphacution begins to fill that gap with data, context, and perspective...
By Paul Rowady | September 2, 2025 | For Subscribers
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Case Study: The Temple of Financial Fantasy

In this 118-page, 145-exhibit case study – “US Equity Market Macrostructure Evolution: The Temple of Financial Fantasy” – Alphacution presents its case for how the adoption of technology by a subset of leading proprietary trading firms have leveraged the regulatory framework over the past 20 years to permanently alter and distort the US equity market to the point of a farcical rivalry between two separate and distinct “stock markets” that are animated by two competing realities. The first reality is...
By Paul Rowady | July 9, 2025 | For Subscribers
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