Public.com: Early Post-Option Launch Stats, And Other Tasty Treats…
As promised, Alphacution provides an analysis of Public.com's first official months after the launch of its option offering to customers, along with a comparison of critical stats with other retail brokers. As a bonus, this Feed post also found its way into a deep dive on average option PFOF rates by broker, with specific findings on Tastytrade...
More Fun With Robinhood: Mea Culpas
Alphacution falls on its sword to admit errors in attribution of equity index option activity to Robinhood - and offers an explanation for why occasional mistakes like these are a necessary evil of our research process...
Citadel Securities, SIG: An Analysis of Single-Security vs Index Option Allocations
Alphacution compares the two largest players in US equity options - SIG affiliate, Susquehanna Securities and Citadel Securities - based on a 10-year period of allocations to single security options (SSOs) and equity index options, including indications of scale variance, key factor preferences, and strategy shifts...
More Fun With Robinhood: The Value of Accidental Data
By a quirk of accidental data, Alphacution dramatically sharpens its estimate of Robinhood's engagement with index options since May 2021; an update that has implications for our overall estimate of retail engagement in index options...
Susquehanna Securities and the Hidden Arbitrage Strategy – Part III
In this Part III, Alphacution concludes its multi-part analysis of Susquehanna Securities' so-called "arbitrage strategy" by sharing some revealing - if not, conclusive - comparisons...
Susquehanna Securities and the Hidden Arbitrage Strategy – Part II
In this Feed post, Alphacution updates an analysis of Susquehanna Securities - the primary risk-warehousing affiliate of legendary options powerhouse, Susquehanna International Group (SIG) and the place where the largest piece of SIG's global market making operation resides - originally published in Dec 2020. Now, more than 3 years later, Alphacution adds significant new color to that analysis - including 12 charts - and sets the stage for a much more nuanced understanding of the broader group of option market makers...
Ranking Top SPY Option Traders, Almost
Using SPY option positions to make a case, this Feed post is a status report - of sorts - for Alphacution's development of a model to estimate individual market maker's shares of US equity option volume. At least we have a (mostly completed) list of the candidates...
More 0DTE Insights: Thing 1 Doesn’t Always Change Thing 2
Alphacution publishes new charts comparing SPY options, SPX options, and SPX futures options to illustrate the blessing - and curse? - of the 0DTE phenomenon, reliance on retail investors, and market concentration risks...
Ken Overtakes Jeff (Updated)
Citadel Securities overtakes Susquehanna Securities for year-end 2023 by this metric. Problem is, there's an asterisk. This Feed post is excerpted from research for Alphacution's long awaited case study on option market makers...
Public.com Management Weighs In On Options Launch
Public.com senior management reached out to react to Alphacution's recent Feed post, "Public.com Enters Option Fray, With A Twist." Here are some highlights from what we learned...
