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 | |
|---|---|---|---|---|---|---|
2051
United Bankshares
UBSI
$6.46B
| $2M | ﹤0.01% |
+53,763
| New | +$2M |
|
2052
LXP Industrial Trust
LXP
$3.6B
| $2M | ﹤0.01% |
44,642
+598
| +1% | +$25.7K |
|
2053
DigitalOcean
DOCN
$13.2B
| $2M | ﹤0.01% |
58,511
-1,801
| -3% | -$57.1K |
|
2054
Motorcar Parts of America
MPAA
$222M
| $1.99M | ﹤0.01% |
120,577
+87,764
| +267% | +$1.19M |
|
2055
Finance of America Companies
FOA
$181M
| $1.99M | ﹤0.01% |
88,888
+62,687
| +239% | +$1.57M |
|
2056
ProShares Russell 2000 Dividend Growers ETF
SMDV
$747M
| $1.99M | ﹤0.01% |
29,900
| – | – |
|
|
ASM
2057
Avino Silver & Gold Mines
ASM
$1.27B
| $1.99M | ﹤0.01% |
378,475
+80,133
| +27% | +$323K |
|
2058
Artesian Resources
ARTNA
$370M
| $1.99M | ﹤0.01% |
60,917
-2,482
| -4% | -$82.2K |
|
2059
TAT Technologies
TATT
$490M
| $1.98M | ﹤0.01% |
45,023
-59,627
| -57% | -$2.11M |
|
2060
PUT
PENN Entertainment
PENN
$2.38B
| $1.98M | ﹤0.01% |
102,900
+1,000
| +1% | +$18.8K |
|
2061
Rentokil
RTO
$12B
| $1.98M | ﹤0.01% |
78,433
-3,300
| -4% | -$80.4K |
|
2062
CALL
TJX Companies
TJX
$154B
| $1.98M | ﹤0.01% |
+13,700
| New | +$1.82M |
|
|
PELI
2063
DELISTED
Pelican Acquisition Corp
PELI
| $1.98M | ﹤0.01% |
196,645
| – | – |
|
2064
Globalstar
GSAT
$10.6B
| $1.97M | ﹤0.01% |
54,253
-25,531
| -32% | -$732K |
|
2065
Ichor Holdings
ICHR
$2.14B
| $1.97M | ﹤0.01% |
+112,247
| New | +$2.13M |
|
2066
Southwest Airlines
LUV
$20B
| $1.97M | ﹤0.01% |
61,600
-19,600
| -24% | -$641K |
|
2067
Gladstone Capital
GLAD
$448M
| $1.96M | ﹤0.01% |
89,519
+25,181
| +39% | +$662K |
|
|
PLG
2068
Platinum Group Metals
PLG
$203M
| $1.95M | ﹤0.01% |
736,330
+417,306
| +131% | +$711K |
|
2069
Opko Health
OPK
$1.11B
| $1.95M | ﹤0.01% |
1,255,647
-581,100
| -32% | -$798K |
|
2070
Carrier Global
CARR
$48.2B
| $1.95M | ﹤0.01% |
32,588
-24,737
| -43% | -$1.68M |
|
2071
CALL
Realty Income
O
$59.5B
| $1.95M | ﹤0.01% |
+32,000
| New | +$1.86M |
|
|
CHAR
2072
Charlton Aria Acquisition Corp
CHAR
$120M
| $1.94M | ﹤0.01% |
187,500
| – | – |
|
2073
Pfizer
PFE
$163B
| $1.93M | ﹤0.01% |
+75,928
| New | +$1.87M |
|
2074
Invesco High Yield Equity Dividend Achievers ETF
PEY
$1.17B
| $1.93M | ﹤0.01% |
91,800
+15,200
| +20% | +$321K |
|
2075
TTEC Holdings
TTEC
$69M
| $1.93M | ﹤0.01% |
574,809
+93,978
| +20% | +$385K |
|
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.