To: w0z who wrote (23682 ) 3/24/2025 5:28:29 PM From: w0z 1 RecommendationRecommended By
Respond to What are the largest HFT firms? Grok (my bold ) The largest high-frequency trading (HFT) firms, based on market influence and trading volume, include Citadel Securities , Virtu Financial , Jane Street , Hudson River Trading (HRT ), and Jump Trading. Citadel Securities often tops the list, handling a massive chunk of U.S. equity trading volume, sometimes estimated at over 20%. Virtu follows closely, known for its global reach and tech-driven strategies across asset classes. Jane Street stands out in ETF and options markets, leveraging precision and scale. HRT and Jump Trading are also heavyweights, with HRT reportedly managing around 5-10% of U.S. equity volume and Jump excelling in futures and crypto. These firms thrive on speed, tech, and proprietary algorithms, often operating in secrecy, so exact rankings can shift with market dynamics. Smaller players like IMC , Optiver, and Tower Research are notable but don’t consistently match the top tier’s scale. Data on this is murky since most are private and don’t disclose specifics—estimates come from industry chatter and occasional regulatory filings. If you want more on a specific firm, let me know. All 5 of the majors above have significant positions in POET.Citadel Securities: net calls $2.2M, common $3.3M VIrtu Financial: common $128k Jane Street: net calls $854k, common $575k HRT: common $214k Jump Financial: common $1.833M IMC-Chicago: net calls $1.0M Below are analytical trading houses similar to Renaissance, but not directly doing HFT unless it may be internal only: Renaissance Technologies: common $1.86M Susquehanna: net calls $21.6M Two Sigma: common $128k Totals: $8.0M common, $25.7M net calls I don't know how many shares those calls represent since acquisition price/expiry is undisclosed. Other interesting data on the 13F site are the Change in Shares and % Change in Shares columns (i.e. for Q4 2024).
