John Overdeck Two Sigma Investments
John Overdeck is a co-founder of Two Sigma Investments, one of the world’s leading quantitative and technology-driven investment firms. Two Sigma applies data science, machine learning, and large-scale computing to markets across asset classes. Overdeck’s firm is a central reference point in discussions of modern systematic investing.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$474M |
| 2 |
State Street Consumer Staples Select Sector SPDR ETF
XLP
|
+$357M |
| 3 |
Accenture
ACN
|
+$246M |
| 4 |
Advanced Micro Devices
AMD
|
+$235M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$231M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$381M |
| 2 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$375M |
| 3 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$348M |
| 4 |
Thermo Fisher Scientific
TMO
|
+$292M |
| 5 |
Snowflake
SNOW
|
+$258M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.18% |
| 2 | Financials | 15.54% |
| 3 | Industrials | 10.5% |
| 4 | Healthcare | 9.8% |
| 5 | Consumer Discretionary | 8.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
YSG
3376
Yatsen Holding
YSG
$280M
| $114K | ﹤0.01% |
+12,563
| New | +$120K |
|
|
EPSM
3377
Epsium Enterprise
EPSM
$19.5M
| $112K | ﹤0.01% |
+10,516
| New | +$266K |
|
3378
Nuvectis Pharma
NVCT
$783M
| $111K | ﹤0.01% |
18,435
+300
| +2% | +$2.06K |
|
|
ORBS
3379
Eightco Holdings
ORBS
$322M
| $109K | ﹤0.01% |
+11,955
| New | +$65.3K |
|
|
RENT
3380
Rent the Runway
RENT
$126M
| $109K | ﹤0.01% |
+22,089
| New | +$113K |
|
3381
IN8bio
INAB
$11.9M
| $107K | ﹤0.01% |
+49,453
| New | +$109K |
|
3382
SurgePays
SURG
$4.14M
| $107K | ﹤0.01% |
38,071
-2,300
| -6% | -$6.52K |
|
|
HUYA
3383
Huya Inc
HUYA
$491M
| $107K | ﹤0.01% |
+32,100
| New | +$106K |
|
|
ARAI
3384
Arrive AI Inc
ARAI
$12.5M
| $106K | ﹤0.01% |
+29,227
| New | +$194K |
|
|
BLFY
3385
DELISTED
Blue Foundry Bancorp
BLFY
| $105K | ﹤0.01% |
+11,559
| New | +$106K |
|
|
HSHP
3386
Himalaya Shipping
HSHP
$780M
| $104K | ﹤0.01% |
12,586
-1,251
| -9% | -$9.35K |
|
|
CIO
3387
DELISTED
City Office REIT
CIO
| $103K | ﹤0.01% |
14,851
-38,664
| -72% | -$255K |
|
3388
Pyxis Oncology
PYXS
$249M
| $103K | ﹤0.01% |
+46,501
| New | +$67K |
|
3389
Riskified
RSKD
$778M
| $102K | ﹤0.01% |
+21,900
| New | +$108K |
|
3390
Beam Global
BEEM
$31.7M
| $102K | ﹤0.01% |
+35,460
| New | +$86K |
|
3391
CarParts.com
PRTS
$51.3M
| $102K | ﹤0.01% |
14,351
-22,991
| -62% | -$187K |
|
3392
Soligenix
SNGX
$8.8M
| $102K | ﹤0.01% |
+87,646
| New | +$201K |
|
3393
FTC Solar
FTCI
$35.4M
| $101K | ﹤0.01% |
14,290
+5
| +0% | +$30 |
|
3394
Palladyne AI
PDYN
$282M
| $100K | ﹤0.01% |
11,656
-6,826
| -37% | -$56.6K |
|
|
CURR
3395
Currenc Group
CURR
$410M
| $100K | ﹤0.01% |
59,536
| – | – |
|
|
PWCM
3396
PowerCompute Inc
PWCM
$1.22M
| $99.7K | ﹤0.01% |
+3,499
| New | +$169K |
|
3397
Rekor Systems
REKR
$79.8M
| $99.2K | ﹤0.01% |
63,181
+37,501
| +146% | +$47.4K |
|
3398
Weave Communications
WEAV
$583M
| $98.2K | ﹤0.01% |
14,700
-185,444
| -93% | -$1.43M |
|
3399
Sera Prognostics
SERA
$84.8M
| $97.1K | ﹤0.01% |
+31,736
| New | +$90.4K |
|
3400
Jasper Therapeutics
JSPR
$24M
| $96.2K | ﹤0.01% |
+40,427
| New | +$123K |
|
Similar funds
John Overdeck's Q3 2025 Portfolio in Review
As of Q3 2025, John Overdeck held 4,027 positions worth $67.2B, up 19% from $56.5B the previous quarter. Its ten largest holdings account for 6.2% of the portfolio.
John Overdeck deployed $4.46B of net new capital in Q3 2025, opening 877 new positions and adding to 1,461 existing holdings. Its largest new stake was Berkshire Hathaway Class B: 379,096 shares worth $191M.
By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 17% a quarter earlier, followed by Financials and Industrials.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $381M trimmed.
- John Overdeck's largest Q3 2025 buy was Berkshire Hathaway Class B: 379,096 shares worth $191M.
- John Overdeck added most to State Street Financial Select Sector SPDR ETF in Q3 2025, an estimated $474M increase.
- John Overdeck's biggest Q3 2025 reduction was Invesco QQQ Trust, cutting an estimated $381M.
- John Overdeck fully exited NextEra Energy, Inc. 6.926% Corporate Units in Q3 2025, selling an estimated $115M.
- John Overdeck's ten largest holdings make up 6.2% of its $67.2B portfolio in Q3 2025.
- John Overdeck opened 877 new positions and closed 399 in Q3 2025.
- John Overdeck's portfolio value rose 19% quarter-over-quarter to $67.2B.
Based on Two Sigma Investments's 13F filing for Q3 2025, filed 14 Nov 2025.