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 | |
|---|---|---|---|---|---|---|
|
AMRZ
1501
Amrize Ltd
AMRZ
$24.7B
| $4.3M | 0.01% |
88,630
+46,487
| +110% | +$2.37M |
|
1502
ARK Web x.0 ETF
ARKW
$1.81B
| $4.3M | 0.01% |
+24,627
| New | +$3.91M |
|
1503
Lincoln Educational Services
LINC
$788M
| $4.29M | 0.01% |
182,756
+19,982
| +12% | +$428K |
|
1504
Ecopetrol
EC
$35.6B
| $4.29M | 0.01% |
466,266
+244,106
| +110% | +$2.19M |
|
1505
New Mountain Finance
NMFC
$722M
| $4.29M | 0.01% |
445,095
-302,878
| -40% | -$3.14M |
|
1506
PVH
PVH
$3.55B
| $4.29M | 0.01% |
51,169
+7,769
| +18% | +$610K |
|
1507
Archer Aviation
ACHR
$4.67B
| $4.27M | 0.01% |
445,655
-2,964,734
| -87% | -$29.3M |
|
1508
Greif
GEF
$4.89B
| $4.26M | 0.01% |
71,331
+56,173
| +371% | +$3.63M |
|
1509
First Trust Value Line Dividend Fund
FVD
$8.35B
| $4.26M | 0.01% |
92,100
+69,200
| +302% | +$3.17M |
|
1510
Paymentus
PAY
$5.03B
| $4.24M | 0.01% |
138,579
+17,127
| +14% | +$566K |
|
1511
Karooooo
KARO
$1.99B
| $4.23M | 0.01% |
74,130
+39,709
| +115% | +$2.02M |
|
1512
Schneider National
SNDR
$6.11B
| $4.23M | 0.01% |
200,014
+33,034
| +20% | +$808K |
|
1513
Erie Indemnity
ERIE
$14B
| $4.23M | 0.01% |
13,286
+10,186
| +329% | +$3.52M |
|
|
SDHI
1514
Siddhi Acquisition Corp
SDHI
$366M
| $4.22M | 0.01% |
415,579
| – | – |
|
1515
Illumina
ILMN
$33.7B
| $4.22M | 0.01% |
44,398
-183,921
| -81% | -$18.2M |
|
1516
PUT
VanEck Semiconductor ETF
SMH
$64.8B
| $4.21M | 0.01% |
+12,900
| New | +$3.82M |
|
1517
Bausch Health
BHC
$2.5B
| $4.21M | 0.01% |
652,626
+458,997
| +237% | +$3.14M |
|
1518
AutoZone
AZO
$49.1B
| $4.21M | 0.01% |
981
+400
| +69% | +$1.6M |
|
|
VACH
1519
DELISTED
Voyager Acquisition Corp
VACH
| $4.21M | 0.01% |
400,889
-149,111
| -27% | -$1.55M |
|
1520
Apogee Enterprises
APOG
$863M
| $4.2M | 0.01% |
96,306
-65,280
| -40% | -$2.8M |
|
1521
Allogene Therapeutics
ALLO
$701M
| $4.2M | 0.01% |
3,383,644
+1,770,419
| +110% | +$2.11M |
|
1522
Equity Lifestyle Properties
ELS
$12.8B
| $4.19M | 0.01% |
68,961
+61,628
| +840% | +$3.74M |
|
1523
Center Bancorp
CNOB
$1.62B
| $4.18M | 0.01% |
168,662
-30,248
| -15% | -$746K |
|
1524
PPG Industries
PPG
$25.2B
| $4.18M | 0.01% |
+39,767
| New | +$4.42M |
|
|
TRST
1525
Trustco Bank Corp NY
TRST
$974M
| $4.18M | 0.01% |
115,107
+41,051
| +55% | +$1.5M |
|
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.