L'Observatoire

World's largest asset manager — Mostly passive/ETF assets — read size, not conviction.

49,968 positions · top-10 28.1% · +237 nouveau · −183 sorties

SPDR ETF sponsor — Passive giant; index flows dominate changes.

4,261 positions · top-10 29.0% · +98 nouveau · −96 sorties

Fidelity Investments' manager — Active + index fund complex.

13,978 positions · top-10 34.0% · +335 nouveau · −195 sorties

Bank/wealth platform — Bank-affiliated adviser aggregating client assets.

45,905 positions · top-10 21.1% · +423 nouveau · −268 sorties

Manages Fidelity index funds — Passive manager for Fidelity-branded index funds.

8,470 positions · top-10 31.1% · +128 nouveau · −165 sorties

Bank asset & wealth management — Bank-affiliated manager; broad book.

34,064 positions · top-10 26.3% · +573 nouveau · −279 sorties

Bank asset & wealth management — Bank-affiliated manager; broad book.

14,070 positions · top-10 22.6% · +572 nouveau · −461 sorties

Norway's sovereign wealth fund (NBIM) — The world's largest sovereign equity owner; near-index breadth.

1,617 positions · top-10 32.4% · +1602 nouveau

Active fund complex — Large active growth manager.

4,722 positions · top-10 32.3% · +219 nouveau · −114 sorties

Ken Griffin (Founder & CEO) — Multi-strategy platform; heavy reported options activity — read positions with care.

16,122 positions · top-10 16.0% · +1585 nouveau · −1241 sorties

Capital Group division — American Funds' long-only equity.

637 positions · top-10 29.6% · +65 nouveau · −55 sorties

Institutional asset manager — One of the largest active institutional managers.

7,448 positions · top-10 25.0% · +214 nouveau · −159 sorties

Ken Fisher (Founder) — Large RIA managing many separate accounts — breadth over conviction.

1,037 positions · top-10 35.6% · +122 nouveau · −96 sorties

Warren Buffett (Chairman & CEO) — The holding company's reported U.S. equity book; famously concentrated and long-held.

89 positions · top-10 88.5% · +1 nouveau · −1 sorties

Cliff Asness (Co-founder) — Systematic factor investing across thousands of names.

21,077 positions · top-10 12.2% · +244 nouveau · −81 sorties

Izzy Englander (Founder) — Multi-manager pod platform; aggregate positions reflect many independent teams.

5,798 positions · top-10 19.4% · +550 nouveau · −588 sorties

Quantitative institutional manager — Systematic global equity.

1,887 positions · top-10 27.7% · +373 nouveau · −299 sorties

Founded by David E. Shaw — Quantitative multi-strategy manager.

6,298 positions · top-10 20.2% · +543 nouveau · −289 sorties

Value mutual-fund manager — Long-only value funds; positions turn over slowly.

222 positions · top-10 27.9% · +7 nouveau · −6 sorties

Sub-adviser to Vanguard funds — Long-duration growth positions.

324 positions · top-10 42.5% · +10 nouveau · −6 sorties

Founded by John Overdeck & David Siegel — Quantitative manager; broad, fast-turning book.

5,017 positions · top-10 8.4% · +607 nouveau · −372 sorties

London long/short platform — Systematic + discretionary long/short.

6,550 positions · top-10 40.5% · +667 nouveau · −625 sorties

Edinburgh growth manager — Long-horizon growth investing.

880 positions · top-10 44.7% · +28 nouveau · −24 sorties

Steve Cohen (Founder) — Multi-manager platform with discretionary pods.

3,923 positions · top-10 14.8% · +625 nouveau · −611 sorties

Manager of the Oakmark funds — Long-only value funds.

226 positions · top-10 31.5% · +12 nouveau · −7 sorties

Founded by Jim Simons — Quantitative manager holding thousands of positions; single names carry little signal.

3,140 positions · top-10 12.0% · +546 nouveau · −604 sorties

Manages Harvard-lineage capital — Low-profile, benchmark-aware stock picking.

1,002 positions · top-10 29.5% · +147 nouveau · −112 sorties

Chris Hohn (Founder) — Very concentrated, long-duration positions.

11 positions · top-10 98.6% · +2 nouveau · −1 sorties

Philippe Laffont (Founder) — Technology-focused crossover manager.

211 positions · top-10 61.9% · +9 nouveau · −5 sorties

Joel Greenblatt (Co-CIO) — Systematic value; hundreds of small long positions.

1,791 positions · top-10 28.4% · +174 nouveau · −128 sorties

Founded by Andreas Halvorsen — Fundamental long/short equity.

90 positions · top-10 35.7% · +33 nouveau · −21 sorties

Endowment trust — Concentrated endowment portfolio.

24 positions · top-10 94.9% · +2 nouveau

Founded by Ray Dalio — One of the largest macro managers; the 13F shows only its reportable U.S. long book.

997 positions · top-10 40.0% · +212 nouveau · −208 sorties

Chase Coleman (Founder) — Growth/technology crossover investing.

46 positions · top-10 67.1% · +9 nouveau · −16 sorties

Paul Singer (Founder) — Activist positions often paired with derivatives that 13Fs only partially reveal.

29 positions · top-10 95.6% · +2 nouveau · −2 sorties

Founded by Stephen Mandel — Growth-oriented long/short equity.

34 positions · top-10 53.9% · +13 nouveau · −15 sorties

Cathie Wood (CEO) — Thematic ETF manager — its 13F largely mirrors its funds' disclosed holdings.

191 positions · top-10 39.5% · +15 nouveau · −6 sorties

Insurance holding company — Buffett-style equity book inside an insurer.

205 positions · top-10 42.9% · +3 nouveau · −2 sorties

Mario Gabelli (Chairman) — Value manager with many small-cap holdings.

938 positions · top-10 15.4% · +35 nouveau · −98 sorties

Brad Gerstner (Founder) — Technology-focused crossover manager.

20 positions · top-10 83.3% · +9 nouveau · −2 sorties

Carl Icahn — Activist positions, often alongside 13D filings.

18 positions · top-10 98.6%

Family office of George Soros — Macro-driven family office.

266 positions · top-10 29.4% · +85 nouveau · −78 sorties

David Tepper (President) — Opportunistic, macro-aware equity positioning.

27 positions · top-10 81.6% · +6 nouveau · −12 sorties

Co-founded by Howard Marks — Credit specialist; the 13F shows only its listed-equity sliver.

145 positions · top-10 66.5% · +8 nouveau · −11 sorties

Founded by Jeff Ubben; led by Mason Morfit — Constructive activist with board seats.

18 positions · top-10 88.2% · +1 nouveau · −1 sorties

Larry Robbins (CEO) — Healthcare-heavy fundamental manager.

45 positions · top-10 64.1% · +12 nouveau · −11 sorties

Seth Klarman (CEO) — Value investor; much of the portfolio (cash, credit, private) never appears in a 13F.

23 positions · top-10 74.9% · +3 nouveau · −2 sorties

Stanley Druckenmiller (Chairman) — Macro-aware equity family office.

95 positions · top-10 52.4% · +44 nouveau · −23 sorties

Daniel Loeb (CEO) — Event-driven and activist equity manager.

43 positions · top-10 60.6% · +16 nouveau · −9 sorties

Jeff Smith (CEO) — Activist campaigns in mid-cap companies.

22 positions · top-10 84.3% · +2 nouveau · −4 sorties

Nelson Peltz (CEO) — Concentrated operational activism.

9 positions · top-10 100.0%

David Einhorn (President) — Long/short value manager (adviser entity renamed DME Capital Management) — 13F shows reportable longs only.

95 positions · top-10 52.8% · +7 nouveau · −6 sorties

Li Lu (Founder) — Very concentrated value book.

8 positions · top-10 100.0% · −6 sorties

Prem Watsa (Chairman) — Insurance holding company's equity portfolio.

32 positions · top-10 90.8% · +6 nouveau · −3 sorties

Classic Graham-and-Dodd firm — Old-school value manager.

91 positions · top-10 69.2% · +13 nouveau · −15 sorties

Mohnish Pabrai (Managing Partner) — Ultra-concentrated value vehicle.

4 positions · top-10 100.0% · +1 nouveau

Bill Ackman (CEO) — Concentrated activist positions in a small number of large companies.

analyse des holdings en cours

Michael Burry (Founder) — Small, concentrated book; reported options make headline positions easy to misread.

analyse des holdings en cours

Index-fund pioneer — Passive giant — position changes mostly reflect index flows, not views.

analyse des holdings en cours