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 | |
|---|---|---|---|---|---|---|
|
HIMX
1451
Himax Technologies
HIMX
$2.34B
| $4.61M | 0.01% |
522,507
-169,030
| -24% | -$1.45M |
|
|
HOLX
1452
DELISTED
Hologic
HOLX
| $4.6M | 0.01% |
68,227
-69
| -0.1% | -$4.58K |
|
1453
Sherwin-Williams
SHW
$84.2B
| $4.6M | 0.01% |
13,294
+2,100
| +19% | +$740K |
|
1454
Cummins
CMI
$78.7B
| $4.6M | 0.01% |
10,894
-87,009
| -89% | -$33.4M |
|
1455
Archer Daniels Midland
ADM
$37.7B
| $4.6M | 0.01% |
77,016
-477
| -0.6% | -$27.9K |
|
|
GSHR
1456
Gesher Acquisition Corp II
GSHR
$216M
| $4.6M | 0.01% |
453,124
| – | – |
|
|
OACC
1457
Oaktree Acquisition Corp III Life Sciences
OACC
$264M
| $4.6M | 0.01% |
437,500
| – | – |
|
1458
McKesson
MCK
$102B
| $4.6M | 0.01% |
5,950
-283,480
| -98% | -$200M |
|
1459
HealthStream
HSTM
$842M
| $4.59M | 0.01% |
162,427
+10,924
| +7% | +$300K |
|
|
CCAQ
1460
Collective Acquisition Corp
CCAQ
| $4.58M | 0.01% |
453,124
| – | – |
|
1461
UMB Financial
UMBF
$10.9B
| $4.58M | 0.01% |
38,700
-83,146
| -68% | -$9.58M |
|
|
CVGW
1462
DELISTED
Calavo Growers
CVGW
| $4.58M | 0.01% |
177,767
+164,476
| +1,237% | +$4.44M |
|
1463
Nucor
NUE
$55.5B
| $4.57M | 0.01% |
33,757
+100
| +0.3% | +$14.2K |
|
1464
PACCAR
PCAR
$68.4B
| $4.57M | 0.01% |
46,440
+41,300
| +804% | +$4.07M |
|
1465
McDonald's
MCD
$193B
| $4.56M | 0.01% |
+15,014
| New | +$4.57M |
|
|
DCH
1466
Dauch Corp
DCH
$1.53B
| $4.55M | 0.01% |
757,773
+217,858
| +40% | +$1.17M |
|
1467
Unitil
UTL
$977M
| $4.55M | 0.01% |
95,069
+43,560
| +85% | +$2.13M |
|
1468
Alpha and Omega Semiconductor
AOSL
$783M
| $4.54M | 0.01% |
162,320
-34,584
| -18% | -$960K |
|
1469
McGrath RentCorp
MGRC
$2.85B
| $4.54M | 0.01% |
38,683
-55,002
| -59% | -$6.64M |
|
1470
Affirm
AFRM
$25.7B
| $4.54M | 0.01% |
62,069
+24,900
| +67% | +$1.89M |
|
1471
SK Telecom
SKM
$15.4B
| $4.53M | 0.01% |
209,919
-24,848
| -11% | -$551K |
|
1472
Nuveen Churchill Direct Lending
NCDL
$608M
| $4.52M | 0.01% |
327,551
-44,552
| -12% | -$713K |
|
1473
State Street Industrial Select Sector SPDR ETF
XLI
$33.2B
| $4.5M | 0.01% |
29,146
+21,106
| +263% | +$3.2M |
|
|
GDEN
1474
DELISTED
Golden Entertainment
GDEN
| $4.49M | 0.01% |
190,545
+85,071
| +81% | +$2.26M |
|
1475
WisdomTree US SmallCap Dividend Fund
DES
$2.21B
| $4.48M | 0.01% |
133,100
+99,600
| +297% | +$3.31M |
|
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.