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 | |
|---|---|---|---|---|---|---|
|
CHECU
1551
Chenghe Acquisition III Co Units
CHECU
| $3.98M | 0.01% |
+398,750
| New | +$3.98M |
|
1552
Manhattan Associates
MANH
$12.4B
| $3.98M | 0.01% |
19,400
-65,887
| -77% | -$13.9M |
|
1553
EPAM Systems
EPAM
$5.74B
| $3.97M | 0.01% |
+26,332
| New | +$4.32M |
|
1554
Barrett Business Services
BBSI
$810M
| $3.97M | 0.01% |
89,568
+19,522
| +28% | +$894K |
|
1555
Henry Schein
HSIC
$9.98B
| $3.97M | 0.01% |
59,795
+37,995
| +174% | +$2.63M |
|
1556
Hudbay
HBM
$13.1B
| $3.97M | 0.01% |
261,699
+233,381
| +824% | +$2.67M |
|
1557
Itron
ITRI
$4.32B
| $3.96M | 0.01% |
31,819
-205,424
| -87% | -$26.1M |
|
1558
Univest Financial
UVSP
$1.15B
| $3.96M | 0.01% |
131,946
+20,265
| +18% | +$622K |
|
|
DFSV
1559
Dimensional US Small Cap Value ETF
DFSV
$8.35B
| $3.96M | 0.01% |
+124,300
| New | +$3.88M |
|
1560
Yum! Brands
YUM
$42.9B
| $3.95M | 0.01% |
26,008
-601
| -2% | -$88.5K |
|
|
OKLO
1561
PUT
Oklo
OKLO
$7.38B
| $3.95M | 0.01% |
+35,400
| New | +$2.77M |
|
1562
PUT
JetBlue
JBLU
$1.87B
| $3.95M | 0.01% |
802,200
+226,600
| +39% | +$1.09M |
|
|
MACI
1563
Melar Acquisition Corp I
MACI
$237M
| $3.94M | 0.01% |
375,000
| – | – |
|
|
BRSP
1564
BrightSpire Capital
BRSP
$621M
| $3.94M | 0.01% |
724,937
+286,911
| +66% | +$1.56M |
|
1565
Group 1 Automotive
GPI
$3.09B
| $3.93M | 0.01% |
8,982
-60,593
| -87% | -$27.2M |
|
1566
Dimensional US Small Cap ETF
DFAS
$15.7B
| $3.93M | 0.01% |
+57,400
| New | +$3.83M |
|
1567
Rithm Capital
RITM
$5.72B
| $3.93M | 0.01% |
+344,744
| New | +$4.18M |
|
1568
Ball Corp
BALL
$17.1B
| $3.92M | 0.01% |
77,727
-1,636
| -2% | -$88.4K |
|
1569
Celanese
CE
$4.97B
| $3.92M | 0.01% |
93,122
-252,651
| -73% | -$12.6M |
|
1570
Sempra
SRE
$55.3B
| $3.91M | 0.01% |
43,494
+4,694
| +12% | +$380K |
|
1571
Packaging Corp of America
PKG
$22.2B
| $3.91M | 0.01% |
17,921
-330,463
| -95% | -$68.2M |
|
1572
SP Funds S&P 500 Sharia ETF
SPUS
$3.05B
| $3.9M | 0.01% |
78,900
+32,500
| +70% | +$1.52M |
|
1573
DraftKings
DKNG
$12.9B
| $3.9M | 0.01% |
+104,197
| New | +$4.62M |
|
1574
Western Union
WU
$2.28B
| $3.9M | 0.01% |
487,677
-1,458,548
| -75% | -$12.2M |
|
1575
Arrow Electronics
ARW
$10.3B
| $3.89M | 0.01% |
32,169
+8,689
| +37% | +$1.09M |
|
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.