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 | |
|---|---|---|---|---|---|---|
2601
Peoples Financial Services
PFIS
$699M
| $862K | ﹤0.01% |
17,727
+5,370
| +43% | +$274K |
|
2602
Sony
SONY
$141B
| $861K | ﹤0.01% |
29,919
-17,600
| -37% | -$473K |
|
2603
BGC Group
BGC
$5.61B
| $858K | ﹤0.01% |
90,699
-102,059
| -53% | -$1.02M |
|
2604
LifeVantage
LFVN
$86.3M
| $857K | ﹤0.01% |
88,071
+33,242
| +61% | +$416K |
|
2605
State Street SPDR US Small Cap Low Volatility Index ETF
SMLV
$258M
| $856K | ﹤0.01% |
6,600
-800
| -11% | -$103K |
|
2606
Agilysys
AGYS
$3.23B
| $853K | ﹤0.01% |
8,101
+5,099
| +170% | +$564K |
|
|
PCH
2607
DELISTED
PotlatchDeltic
PCH
| $851K | ﹤0.01% |
+20,893
| New | +$866K |
|
2608
Annexon
ANNX
$976M
| $851K | ﹤0.01% |
279,134
+77,974
| +39% | +$194K |
|
2609
Myers Industries
MYE
$1.23B
| $851K | ﹤0.01% |
50,219
-49,243
| -50% | -$782K |
|
2610
KRONOS Worldwide
KRO
$1.03B
| $847K | ﹤0.01% |
147,633
+8,160
| +6% | +$49.4K |
|
2611
Sierra Bancorp
BSRR
$512M
| $845K | ﹤0.01% |
29,240
+6,884
| +31% | +$208K |
|
|
AARD
2612
Aardvark Therapeutics
AARD
$159M
| $845K | ﹤0.01% |
+63,569
| New | +$717K |
|
2613
Monarch Casino & Resort
MCRI
$2.22B
| $843K | ﹤0.01% |
+7,966
| New | +$799K |
|
2614
PUT
PepsiCo
PEP
$194B
| $843K | ﹤0.01% |
+6,000
| New | +$857K |
|
|
CCRD
2615
DELISTED
CoreCard
CCRD
| $842K | ﹤0.01% |
31,286
-19,898
| -39% | -$550K |
|
2616
MGM Resorts International
MGM
$10.9B
| $842K | ﹤0.01% |
+24,298
| New | +$892K |
|
2617
Sensata Technologies
ST
$6.14B
| $840K | ﹤0.01% |
27,510
+3,510
| +15% | +$111K |
|
2618
Community Bank
CBU
$3.31B
| $839K | ﹤0.01% |
14,316
-711
| -5% | -$41.2K |
|
2619
Alliant Energy
LNT
$17.7B
| $839K | ﹤0.01% |
12,450
-12,501
| -50% | -$807K |
|
2620
Repay Holdings
RPAY
$318M
| $838K | ﹤0.01% |
160,289
-10,434
| -6% | -$55.8K |
|
2621
iShares MSCI Emerging Markets ETF
EEM
$31.3B
| $838K | ﹤0.01% |
+15,691
| New | +$788K |
|
2622
Accel Entertainment
ACEL
$966M
| $836K | ﹤0.01% |
75,551
-17,476
| -19% | -$204K |
|
2623
Upland Software
UPLD
$13.9M
| $836K | ﹤0.01% |
35,270
+9,227
| +35% | +$210K |
|
2624
Invesco Food & Beverage ETF
PBJ
$92.5M
| $835K | ﹤0.01% |
+18,200
| New | +$865K |
|
2625
Strawberry Fields REIT
STRW
$197M
| $834K | ﹤0.01% |
67,784
-12,573
| -16% | -$140K |
|
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.