Stanley Druckenmiller
Filer: Duquesne Family Office LLC
Macro-driven, bold positioning from a family office
Born in Pittsburgh, he founded Duquesne Capital in 1981 and also ran George Soros's Quantum Fund from 1988 to 2000. He stopped managing outside money in 2010 and now invests through Duquesne Family Office.
In the latest report the top five make up 32.7%, effectively 22.4 holdings.Compare all five
Not personal wealth: US-listed holdings the institution reported to the SEC as of each quarter end.
Stats
- Born
- 1953, Pittsburgh, Pennsylvania
- Education
- Bowdoin College (English and economics)
- Firm
- Duquesne Capital (founded 1981)
- Now
- Family office (closed to outside money in 2010)
TriviaHe studied English as well as economics, and left an economics PhD program.Source
Defining moments
Well-known episodes, each with its source.
- Scene 1Big win
1992
The day the pound broke
At Soros's fund he bet against the British pound. The fund's selling is credited with pushing sterling out of the European Exchange Rate Mechanism, and he was reported to have made $1 billion for Soros. He has said he initiated the trade.
Source: Bloomberg (2010) - Scene 2Big win
1986–2010
A fund reported never to have had a losing year
Bloomberg reported that Duquesne averaged about 30% a year from 1986 and never had a money-losing year. That applies to Duquesne, not his whole career.
Source: Financial Planning (Bloomberg report) - Scene 3Turning point
2010
Walking away at the top
He announced he would close the fund, which managed about $12 billion.
Source: Bloomberg (2010)
Filers this quarter: Duquesne Family Office LLC
Report summary
Reported value
$5.2B
Sum of reported values
Positions
95
Options counted separately
Top 10 weight
45.8%
Share of reported value
As of
2026-06-30
Filed 2026-08-14 · Retrieved 2026-10-01
Holdings
Largest first. Tickers link to each US stock page.
| # | Security | Shares | Value | Weight | vs prior (shares) |
|---|---|---|---|---|---|
| 1 | NTRANatera Inc | 3,186,306 | $864.9M | 16.6% | Up +4.0% |
| 2 | TSMTaiwan Semiconductor Manufac | 589,680 | $281.6M | 5.4% | Up +19.1% |
| 3 | STMStmicroelectronics N V | 3,102,880 | $232.4M | 4.5% | Up +18.8% |
| 4 | RSPCALLInvesco Exchange Traded Fd T | 821,000 | $174.7M | 3.4% | Unchanged |
| 5 | INSMInsmed Inc | 1,424,690 | $151.9M | 2.9% | Up +23.4% |
| 6 | EWZCALLIshares Inc | 4,228,000 | $145.9M | 2.8% | Unchanged |
| 7 | INSMCALLInsmed Inc | 1,350,000 | $143.9M | 2.8% | New |
| 8 | YPFYpf Sociedad Anonima | 3,138,897 | $142.7M | 2.7% | Down -3.0% |
| 9 | AMZNAmazon Com Inc | 541,600 | $129.1M | 2.5% | Up +1082.5% |
| 10 | TBBBBbb Foods Inc | 2,901,733 | $120.9M | 2.3% | Down -6.7% |
Weights are shares of the reported value. Prior share counts are restated for splits before comparing (marked split-adj.). PUT / CALL rows are options held, not short positions.
Weights (top 5 and other)
- 1. NTRA16.6%
- 2. TSM5.4%
- 3. STM4.5%
- 4. RSP3.4%
- 5. INSM2.9%
- Other67.3%
Changes from the previous quarter
Compared with Q1 2026 (shares)
New48
- INSMCALLInsmed Inc1,350,000sh
- GOOGLAlphabet Inc336,300sh
- FOXAFox Corp2,204,600sh
- CDWCdw Corp743,950sh
- BTDRBitdeer Technologies Group4,074,993sh
- DALDelta Air Lines Inc603,000sh
- TSLACALLTesla Inc126,000sh
- FLRFluor Corp982,200sh
- DHID R Horton Inc299,000sh
- AMDAdvanced Micro Devices Inc72,900sh
- PANWPalo Alto Networks Inc116,650sh
- HUTHut 8 Corp314,150sh
- CDWCALLCdw Corp250,000sh
- FOXFox Corp632,600sh
- METACALLMeta Platforms Inc50,000sh
- CVCOCavco Inds Inc Del39,500sh
- PURRHyperliquid Strategies Inc2,941,500sh
- RMBSRambus Inc Del173,000sh
- RYTMRhythm Pharmaceuticals Inc203,618sh
- SKYChampion Homes Inc254,400sh
- ENTGEntegris Inc118,300sh
- AEVAAeva Technologies Inc720,175sh
- RIOTRiot Platforms Inc754,800sh
- EQIXEquinix Inc18,450sh
- LRCXLam Research Corp43,600sh
- DFTXDefinium Therapeutics Inc356,600sh
- RSPInvesco Exchange Traded Fd T74,400sh
- TXG10X Genomics Inc403,100sh
- LLYEli Lilly & Co12,380sh
- RGENRepligen Corp77,400sh
- RKTRocket Cos Inc652,220sh
- BIDUBaidu Inc88,200sh
- CVNACarvana Co151,000sh
- RDDTReddit Inc56,550sh
- TMOThermo Fisher Scientific Inc19,200sh
- DHRDanaher Corp Del50,300sh
- FFIVF5 Inc22,000sh
- SKESkeena Res Ltd New300,200sh
- GLUEMonte Rosa Therapeutics Inc297,600sh
- RLAYRelay Therapeutics Inc349,000sh
- CCCSCcc Intelligent Solutions Hl1,170,900sh
- UWMCUwm Holdings Corporation2,583,000sh
- NVTSNavitas Semiconductor Corp311,100sh
- FTAIFtai Aviation Ltd20,200sh
- BEAMBeam Therapeutics Inc153,600sh
- AURAurora Innovation Inc633,700sh
- IRENIren Limited87,100sh
- GGALGrupo Financiero Galicia S.A59,500sh
Up17
- NTRANatera Inc+4.0%3,063,606→3,186,306
- TSMTaiwan Semiconductor Manufac+19.1%495,280→589,680
- STMStmicroelectronics N V+18.8%2,612,880→3,102,880
- INSMInsmed Inc+23.4%1,154,090→1,424,690
- AMZNAmazon Com Inc+1082.5%45,800→541,600
- STXSeagate Technology Hldngs Pl+140.6%50,700→122,000
- AMZNCALLAmazon Com Inc+129.7%200,000→459,300
- UALUnited Airls Hldgs Inc+202.8%262,495→794,795
- IWMCALLIshares Tr+317.7%79,000→330,000
- RVMDRevolution Medicines Inc+26.5%315,860→399,587
- CRHCrh Plc+46.6%377,555→553,555
- CLFCleveland-Cliffs Inc New+82.3%2,313,455→4,216,184
- PTGXProtagonist Therapeutics Inc+30.8%159,700→208,900
- ADMAAdma Biologics Inc+80.1%1,545,610→2,784,110
- DAKTDaktronics Inc+99.6%562,637→1,123,109
- PCTPurecycle Technologies Inc+178.4%963,189→2,681,415
- SCCOSouthern Copper Corp+1.0%121,843→123,060
Down10
- YPFYpf Sociedad Anonima-3.0%3,235,962→3,138,897
- TBBBBbb Foods Inc-6.7%3,109,202→2,901,733
- SNDKSandisk Corp-8.5%38,155→34,900
- ARGTGlobal X Fds-15.1%387,400→328,800
- WWDWoodward Inc-68.2%211,355→67,194
- ROKURoku Inc-75.5%750,190→184,055
- TEVATeva Pharmaceutical Inds Ltd-73.7%2,377,285→624,999
- WABWabtec-40.4%94,895→56,595
- ARMArm Holdings Plc-73.7%106,700→28,090
- AAAlcoa Corp-87.6%1,493,390→185,640
Dropped23
- AVGOBroadcom Inc195,955sh
- OPCHOption Care Health Inc1,868,550sh
- FIGRFigure Technology Solutio1,150,415sh
- QSRRestaurant Brands Intl Inc454,435sh
- LSCCLattice Semiconductor Corp323,135sh
- HUMHumana Inc137,505sh
- TWLOTwilio Inc181,760sh
- JBLJabil Inc82,200sh
- GSGIshares S&P Gsci Commodity-643,000sh
- BEBloom Energy Corp136,320sh
- INTCIntel Corp411,400sh
- NETCloudflare Inc52,535sh
- LYBLyondellbasell Industries Nv131,435sh
- TWSTTwist Bioscience Corp206,000sh
- COHRCoherent Corp40,400sh
- CLSCelestica Inc33,275sh
- STUBStubhub Hldgs Inc1,367,177sh
- MUMicron Technology Inc23,400sh
- SATSEchostar Corp60,765sh
- ALMAlmonty Inds Inc469,880sh
- LITELumentum Hldgs Inc6,963sh
- MELIMercadolibre Inc2,766sh
- WLKWestlake Corporation21,194sh
"New" appeared this quarter but not last; "Dropped" was reported last quarter but not this one. 13F does not show trade dates or prices, and some positions may be omitted under confidential treatment.
What moved the reported value
The change since Q1 2026, split into share-count changes and price moves.
- Total change
- +$1.8B
- From share changes
- +$1.3B
- From price moves
- +$574.1M
| Security | Change | From shares | From price |
|---|---|---|---|
NTRANatera Inc | +$252.2M | +$33.3M | +$218.9M |
INSMCALLInsmed Inc | +$143.9M | +$143.9M | $0 |
STMStmicroelectronics N V | +$142.1M | +$36.7M | +$105.4M |
GOOGLAlphabet Inc | +$120.2M | +$120.2M | $0 |
AMZNAmazon Com Inc | +$119.5M | +$118.2M | +$1.4M |
FOXAFox Corp | +$115.0M | +$115.0M | $0 |
TSMTaiwan Semiconductor Manufac | +$114.2M | +$45.1M | +$69.2M |
CDWCdw Corp | +$104.6M | +$104.6M | $0 |
STXSeagate Technology Hldngs Pl | +$97.9M | +$68.8M | +$29.1M |
AAAlcoa Corp | -$89.4M | -$68.2M | -$21.2M |
From shares = change in shares × this quarter's value per share; from price = prior shares × change in value per share. New positions count fully as share changes and dropped positions as negative share changes. Actual trade prices are unknown, so this is an estimate, not investment performance.
Weights over time
Latest top 5 holdings and other, stacked to 100% of each quarter's reported value.
- NTRA
- TSM
- STM
- RSP
- INSM
- Other
Holdings missing from a quarter's report count as 0% for that quarter.
Q3 2026: Not yet due (within 45 days of quarter end) (no bar)
Shares held over time
Values from each quarter-end report. Zero means the position was not in that quarter's report.
Q3 2026: Not yet due (within 45 days of quarter end) (no bar; not zero holdings)
For price and earnings, see the NTRA page.
Sources
Form 13F filed on SEC EDGAR. As-of is the quarter end; retrieved is when Stock Club collected the filing.
| As of | Filer (CIK) | Form | Filed | Retrieved | Document |
|---|---|---|---|---|---|
| 2026-06-30 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2026-08-14 | 2026-10-01 | View on EDGAR |
| 2026-03-31 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2026-05-15 | 2026-10-01 | View on EDGAR |
| 2025-12-31 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2026-02-17 | 2026-10-01 | View on EDGAR |
| 2025-09-30 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2025-11-14 | 2026-10-01 | View on EDGAR |
| 2025-06-30 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2025-08-15 | 2026-10-01 | View on EDGAR |
| 2025-03-31 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2025-05-15 | 2026-10-01 | View on EDGAR |
| 2024-12-31 | Duquesne Family Office LLCCIK 0001536411 | 13F-HRHoldings report | 2025-02-14 | 2026-10-01 | View on EDGAR |
2026-09-30: Not yet due (within 45 days of quarter end)
Filers: Duquesne Family Office LLC
About 13F data
- This is not the person's entire wealth. It is the Form 13F filed with the SEC by the institution named (an asset manager or family office).
- Each report shows holdings at quarter end, not current holdings. Reports are generally filed within 45 days of quarter end; check both the as-of date and the filing date.
- It mainly covers US-listed stocks and ETFs. Cash, most bonds, non-US shares, short positions and written options are not included.
- Positions granted confidential treatment may be added later in an amended filing.
- It does not show when or at what price shares were traded, daily trading or investment returns. Quarter-to-quarter changes compare what was reported.