Alphacution Press: Jane Street’s Dominance in Taiwan Sparks Goldman Challenge
Alphacution quoted in Bloomberg‘s October 15, 2025 article ($) by Betty Hou on how Jane Street Group’s dominance in Taiwan – [...]
ICE, CME Group, Robinhood: Groping The Gamblers (NSFW)
In this Feed post, Alphacution connects some very unusual dots to frame the recent announcements by ICE/NYSE, CME Group, and others to become aligned with betting and event contract markets. Sound business? Or, something else?
Alphacution Press: The Mysterious Billionaire Boss at Jane Street Smashing Trading Records
Alphacution quoted in Bloomberg‘s December 1, 2025 article ($) by Katherine Doherty on how Rob Granieri, the secrecy-loving co-founder of the [...]
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...
Alphacution Press: A 50-Pound Book Holds the Keys to Citadel Securities
In the September 21, 2525 article, Bloomberg's Lulu Yilun Chen and Katherine Doherty provide a rare look inside the unique goal-setting ritual at Citadel Securities.
Speculating on Speculation: Robinhood Joins S&P 500
Robinhood disrupts its way into membership in the S&P 500 index. Alphacution offers some charts - and thoughts - on the significance of this market milestone, including a new "torque" factor...
Alphacution Press: Jane Street, Citadel Securities Cement Sway With Trading Hauls
Alphacution quoted in Bloomberg's September 2, 2025 article by Katherine Doherty on recent record trading revenue from Jane Street, Citadel Securities, and Hudson River Trading...
Optiver’s Charm Offensive – Part II
As a continuation of Part I, this Part II represents a deeper dive into Alphacution's latest analysis of the US affiliate of legendary, Amsterdam-based derivatives trader, Optiver - including comparisons with the other legendary, Amsterdam-based derivatives trader, IMC Financial Markets...
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...
The Retail Option Landscape – Q2 2025 Update
Retail engagement in US equity options is directly having an outsized impact on US capital markets and indirectly on global market sentiment. Alphacution presents its latest charts on the topic, including clues related to the growth of international retail trading in the US equity market...