Pure干货! Detailed introductions to 50 top-tier global proprietary quantitative hedge funds, market makers, hedge funds, and asset management firms

Invesco Ltd. is a U.S.-based independent investment management company headquartered in Atlanta, Georgia, with branch offices in 20 countries. Its common stock is a component of the S&P 500 Index and is listed on the New York Stock Exchange. Invesco’s brand portfolio includes Invesco, Trimark, Invesco Perpetual, WL Ross & Co., and PowerShares. The firm also maintains strong capabilities in mutual funds, ETFs, and other investment vehicles. AllianceBernstein AllianceBernstein Holding L.P. (AB) is a global asset management company providing investment management and research services to institutional, high-net-worth, and retail investors worldwide. Its global headquarters relocated from Midtown Manhattan, New York, to the Fifth and Broadway development in Nashville, Tennessee, and it operates offices in 46 locations across 22 countries. As of December 31, 2021, the firm managed approximately $779 billion in assets. AllianceBernstein offers investment services to institutions, as well as mutual funds, managed accounts, college savings plans, retirement savings solutions, and insurance products to financial advisors and individual investors. Sell-side research and brokerage services are provided by its subsidiary Sanford C. Bernstein (also known as Bernstein Research); Bernstein Wealth Management delivers investment and wealth planning services to high-net-worth clients across the Americas. Arrowstreet Capital Arrowstreet Capital is a Boston-based investment management firm offering global and international equity investment strategies and fund products to institutional investors—including pension funds, endowments, foundations, and registered/unregistered pooled investment funds. The firm manages approximately $100 billion in assets for over 200 clients across North America, the UK, Europe, and the Asia-Pacific region. It provides focused global equity strategies spanning long-only, alpha-extension, and long/short approaches, utilizing a broad range of instruments including swaps and futures. Its investment process is quantitatively driven, emphasizing signal identification and integration into proprietary return, risk, and transaction cost models. Portfolio construction and maintenance rely on mean-variance optimization alongside in-house risk and transaction cost models—aiming to generate excess returns relative to specific benchmarks through diversified equity portfolios. PanAgora Asset Management PanAgora Asset Management is a quantitative investment management firm whose proprietary investment methodology seeks to capture both relative and absolute returns across market cycles by exploiting various market inefficiencies—spanning equities, multi-asset, and risk-premium strategies. PanAgora’s philosophy integrates its core investment principles with original research, supported by an advanced quantitative framework.

Futu vs Tiger: Pricing restructuring after regulatory implementation—who’s selling, who’s buying?

II. Form 13F Quarterly Filings: Professional Capital’s Real Choices Amid Market Panic The table below represents the most valuable part of this article. Data source: Latest Form 13F quarterly filings (as of June 30, 2026, disclosed en masse around August 15), cross-checked against each institution’s detailed holdings schedule. Futu Holdings (institutional ownership ~50%; covered by 621 institutions) Institution Holdings as of 6/30 QoQ Change Nature of Change Remarks HHLR Advisors (Hillhouse) 1.7683 million +348,800 Active增持 Second-largest position (19.9% of portfolio) First Beijing Investment 1.3791 million New entry New position Entered top 10 outright Quinn Opportunity 519,100 +503,100 More than doubled Event-driven Millennium Management 288,300 +260,800 Multi-strategy addition — Citadel Advisors 469,700 +355,900 Hedge fund增持 — BNP Paribas NA 650,700 +482,700 Proprietary research desk — Greenwoods (Jinglin) 1.0936 million +97,300 Chinese active asset manager — T. Rowe Price HK 461,000 −696,200 Index rebalancing Passive reduction State Street 1.025 million −189,800 Minor passive adjustment — Fidelity Canada 1.1883 million −151,000 Minor passive adjustment — Net direction: 7 out of the top 10 institutions increased positions; all reductions came from massive passive/index-oriented asset managers—reduction sizes negligible relative to their AUM. Tiger Securities (institutional ownership ~32%; covered by 220 institutions) Institution Holdings as of 6/30 QoQ Change Nature of Change Remarks Avenir Tech 21.811 million +11.4649 million Core增持 12.02% of holdings; single-firm anchor Renaissance Technologies 3.3205 million +1.5384 million Quantitative addition — Millennium Management 1.314 million +1.2782 million Multi-strategy — Point72 Asset Management 1.2424 million New entry New position Multi-strategy Citadel Advisors 469,700 +355,900 Hedge fund增持 — Marex Group 1.0577 million +1.033 million Proprietary trading desk — Capital International 2.1907 million −3.0853 million Active reduction Portfolio rebalancing Susquehanna Intl 782,400 −1.9734 million Market maker position adjustment — Arrowstreet Capital 2.1625 million −1.8537 million Passive/quantitative reduction —

Arrowstreet Capital Increases Stake in REX American Resources

Jul 31, 2026

Arrowstreet Capital increased its stake in REX American Resources by 6.4% in Q1, purchasing nearly 27,000 shares. The energy and mineral company reported strong Q1 earnings surpassing estimates despite recent insider stock sales.

MarketBeat

2026-07-10

Y Intercept Hong Kong Ltd Acquires Stake in REX American Resources

2026-07-31

Arrowstreet Capital Increases Stake in REX American Resources

2026-08-28

147,500 Shares in REX American Resources Corporation ($REX) Acquired by AWH Capital L.P.

2026-08-31

Empowered Funds LLC Buys New Stake in REX American Resources Corporation

2026-09-04

Jupiter Topco LLC Buys 49,840 Shares in REX American Resources Corp

Arrowstreet Capital Increases Stake in REX American Resources

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