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 | |
|---|---|---|---|---|---|---|
1101
OppFi
OPFI
$603M
| $7.32M | 0.01% |
646,099
+80,804
| +14% | +$908K |
|
1102
B&G Foods
BGS
$284M
| $7.29M | 0.01% |
1,644,731
+54,684
| +3% | +$239K |
|
1103
HNI Corp
HNI
$3.54B
| $7.27M | 0.01% |
+155,113
| New | +$7.35M |
|
|
CRAQ
1104
Cal Redwood Acquisition Corp
CRAQ
| $7.25M | 0.01% |
725,000
| – | – |
|
1105
Advance Auto Parts
AAP
$2.63B
| $7.25M | 0.01% |
118,068
-240,960
| -67% | -$14.2M |
|
1106
Trustmark
TRMK
$2.7B
| $7.22M | 0.01% |
182,434
-10
| -0% | -$390 |
|
1107
American Superconductor
AMSC
$1.4B
| $7.22M | 0.01% |
121,623
-1,227
| -1% | -$61.3K |
|
|
OTGAU
1108
OTG Acquisition Corp I Unit
OTGAU
$215M
| $7.21M | 0.01% |
+715,519
| New | +$7.19M |
|
|
EFXT
1109
Enerflex
EFXT
$2.41B
| $7.2M | 0.01% |
668,360
-311,726
| -32% | -$2.89M |
|
1110
Lakeland Financial Corp
LKFN
$1.5B
| $7.2M | 0.01% |
112,197
-18,291
| -14% | -$1.19M |
|
1111
Evolent Health
EVH
$534M
| $7.2M | 0.01% |
851,138
+487,026
| +134% | +$4.73M |
|
|
VNME
1112
Vendome Acquisition Corp I
VNME
$257M
| $7.2M | 0.01% |
+725,000
| New | +$7.19M |
|
1113
IHS Holding
IHS
$2.81B
| $7.2M | 0.01% |
1,055,288
+142,298
| +16% | +$952K |
|
1114
Horace Mann Educators
HMN
$2.07B
| $7.18M | 0.01% |
158,999
+40,277
| +34% | +$1.77M |
|
|
SOUL
1115
Soulpower Acquisition Corp
SOUL
$355M
| $7.18M | 0.01% |
712,291
| – | – |
|
|
ENHA
1116
Enhanced Group Inc
ENHA
$636M
| $7.18M | 0.01% |
+725,000
| New | +$7.17M |
|
1117
Hingham Institution for Saving
HIFS
$668M
| $7.17M | 0.01% |
27,199
+16,360
| +151% | +$4.36M |
|
1118
Chemed
CHE
$7.08B
| $7.15M | 0.01% |
15,978
-20,051
| -56% | -$9.08M |
|
|
MFA
1119
MFA Financial
MFA
$904M
| $7.15M | 0.01% |
778,019
+411,128
| +112% | +$3.97M |
|
1120
Flowserve
FLS
$10.2B
| $7.11M | 0.01% |
133,801
-466,027
| -78% | -$25.3M |
|
|
HTO
1121
H2O America
HTO
$2.7B
| $7.08M | 0.01% |
145,378
+25,422
| +21% | +$1.27M |
|
1122
WesBanco
WSBC
$3.91B
| $7.06M | 0.01% |
221,151
+57,883
| +35% | +$1.85M |
|
1123
John B. Sanfilippo & Son
JBSS
$882M
| $7.02M | 0.01% |
109,250
+9,501
| +10% | +$615K |
|
1124
Green Plains
GPRE
$1.05B
| $7.01M | 0.01% |
797,377
-349,971
| -31% | -$3.07M |
|
|
AAUC
1125
Allied Gold Corp
AAUC
$3.25B
| $7.01M | 0.01% |
400,167
+77,134
| +24% | +$1.08M |
|
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.