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 | |
|---|---|---|---|---|---|---|
3126
CALL
Ross Stores
ROST
$77.5B
| $305K | ﹤0.01% |
+2,000
| New | +$286K |
|
|
3127
PUT
Ross Stores
ROST
$77.5B
| $305K | ﹤0.01% |
+2,000
| New | +$286K |
|
3128
PUT
Sysco
SYY
$40.1B
| $305K | ﹤0.01% |
+3,700
| New | +$296K |
|
3129
First Trust Natural Gas ETF
FCG
$677M
| $303K | ﹤0.01% |
+12,900
| New | +$302K |
|
3130
Virginia National Bankshares
VABK
$254M
| $303K | ﹤0.01% |
+7,807
| New | +$303K |
|
|
CPTL
3131
Global X Morningstar Capital Allocation Leaders ETF
CPTL
$117M
| $302K | ﹤0.01% |
+7,000
| New | +$293K |
|
3132
Alcoa
AA
$13B
| $301K | ﹤0.01% |
9,164
+866
| +10% | +$26.9K |
|
3133
CALL
GE Aerospace
GE
$355B
| $301K | ﹤0.01% |
+1,000
| New | +$273K |
|
3134
Rollins
ROL
$17.9B
| $300K | ﹤0.01% |
5,112
+359
| +8% | +$20.4K |
|
3135
Target Hospitality
TH
$1.78B
| $300K | ﹤0.01% |
35,394
-11,608
| -25% | -$95.7K |
|
3136
Graham Corp
GHM
$1.14B
| $300K | ﹤0.01% |
5,467
+700
| +15% | +$35.8K |
|
3137
CALL
Archer Daniels Midland
ADM
$37.7B
| $299K | ﹤0.01% |
+5,000
| New | +$293K |
|
|
WW
3138
WW International
WW
$160M
| $298K | ﹤0.01% |
+10,910
| New | +$375K |
|
3139
iShares US Small Cap Value Factor ETF
SVAL
$211M
| $298K | ﹤0.01% |
8,900
-24,400
| -73% | -$802K |
|
3140
Puma Biotechnology
PBYI
$471M
| $298K | ﹤0.01% |
56,126
-134,495
| -71% | -$570K |
|
3141
Orion Group Holdings
ORN
$369M
| $297K | ﹤0.01% |
35,749
-36,334
| -50% | -$286K |
|
3142
Beazer Homes USA
BZH
$883M
| $296K | ﹤0.01% |
12,054
-33,475
| -74% | -$822K |
|
3143
RUM Group Inc
RUM
$4.64B
| $296K | ﹤0.01% |
40,862
-425,848
| -91% | -$3.48M |
|
3144
CAMP4 Therapeutics
CAMP
$271M
| $292K | ﹤0.01% |
+97,371
| New | +$180K |
|
3145
Praxis Precision Medicines
PRAX
$10.3B
| $292K | ﹤0.01% |
5,508
-1,001
| -15% | -$48.5K |
|
3146
PUT
Peabody Energy
BTU
$3.4B
| $292K | ﹤0.01% |
+11,000
| New | +$196K |
|
|
HEQ
3147
John Hancock Hedged Equity & Income Fund
HEQ
$143M
| $291K | ﹤0.01% |
27,364
-5,223
| -16% | -$55.5K |
|
3148
1stdibs.com
DIBS
$157M
| $291K | ﹤0.01% |
112,460
+4,296
| +4% | +$11.7K |
|
3149
CALL
Credo Technology Group
CRDO
$41.5B
| $291K | ﹤0.01% |
+2,000
| New | +$245K |
|
3150
Compugen
CGEN
$245M
| $291K | ﹤0.01% |
197,875
+18,929
| +11% | +$28.1K |
|
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.