Hudson River Trading Finally Sets A Hook
No doubt, options are the rage. Have been for a few years, thanks to an increasingly emboldened, crowd-sourced army of retail warriors - and timely new product developments by a consortium of exchanges, influential market makers, and other notable players in US equity options... The competition to play this game as a market maker is fierce. The cost of complexity makes this game difficult for smaller players - some of them highly experienced and long-time players - to afford to play successfully anymore. Some of these smaller players have voluntarily exited - or outright failed... Hudson River Trading, one of the speed demons originally confined largely to order flows on public exchanges (prior to its acquisition of Sun Trading in Jan 2018), appears - finally - to be defying those odds in options... In this Feed post, Alphacution paints a detailed picture by taking the "scenic route" through the roster of leading prop firms and hedge funds that enjoy significant share and wield significant influence in US equity options as context for HRT's latest achievements, competitive positioning, and challenges ahead...
Dopamine Rush: CME, NYSE, Robinhood – Groping The Gamblers, Part II
Prediction markets - like Kalshi and Polymarket - are enjoying a beautiful day in the sun with all the new deal flow and attention from NYSE, CME, Robinhood and others. Now, the National Hockey League (NHL) is eagerly stepping up to be the first major US sports rights holder to drape itself in logo-embossed gambling. Alphacution shows the mechanics and real objectives of this sudden flurry of activity...
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?
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...
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...
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 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...
