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 | |
|---|---|---|---|---|---|---|
|
BOW
826
Bowhead Specialty Holdings
BOW
$1.11B
| $11.5M | 0.02% |
425,781
+123,295
| +41% | +$3.86M |
|
827
iShares US Insurance ETF
IAK
$534M
| $11.5M | 0.02% |
85,600
| – | – |
|
828
Customers Bancorp
CUBI
$2.67B
| $11.4M | 0.02% |
174,959
+1,256
| +0.7% | +$82.6K |
|
829
Innospec
IOSP
$2.33B
| $11.4M | 0.02% |
148,205
+9,966
| +7% | +$832K |
|
830
T. Rowe Price Blue Chip Growth ETF
TCHP
$2.15B
| $11.4M | 0.02% |
233,900
| – | – |
|
831
Banner Corp
BANR
$2.41B
| $11.4M | 0.02% |
173,742
+131,140
| +308% | +$8.63M |
|
832
Centuri Holdings
CTRI
$2.1B
| $11.4M | 0.02% |
537,291
+432,581
| +413% | +$9.18M |
|
833
CRH
CRH
$63.7B
| $11.4M | 0.02% |
94,858
+36,699
| +63% | +$3.88M |
|
834
Hertz
HTZ
$777M
| $11.4M | 0.02% |
1,670,543
-296,035
| -15% | -$1.9M |
|
835
Atkore
ATKR
$3.16B
| $11.4M | 0.02% |
180,998
+113,757
| +169% | +$7.42M |
|
836
Bloomin' Brands
BLMN
$980M
| $11.4M | 0.02% |
1,583,372
+64,059
| +4% | +$515K |
|
837
Genius Sports
GENI
$2.14B
| $11.4M | 0.02% |
916,857
+389,296
| +74% | +$4.66M |
|
|
ITIC
838
Investors Title Co
ITIC
$563M
| $11.3M | 0.02% |
42,303
+6,673
| +19% | +$1.55M |
|
839
Integer Holdings
ITGR
$4.24B
| $11.3M | 0.02% |
109,365
-108,068
| -50% | -$11.8M |
|
840
Otter Tail
OTTR
$3.87B
| $11.3M | 0.02% |
137,624
+113,276
| +465% | +$9.19M |
|
841
Weis Markets
WMK
$1.76B
| $11.3M | 0.02% |
156,961
+6,384
| +4% | +$466K |
|
842
Intapp
INTA
$3.13B
| $11.3M | 0.02% |
+275,528
| New | +$11.9M |
|
843
Prospect Capital
PSEC
$1.16B
| $11.3M | 0.02% |
4,096,924
+2,047,189
| +100% | +$6.12M |
|
844
First Trust SMID Cap Rising Dividend Achievers ETF
SDVY
$11.6B
| $11.2M | 0.02% |
295,500
+262,600
| +798% | +$9.74M |
|
845
iShares US Consumer Discretionary ETF
IYC
$1.22B
| $11.1M | 0.02% |
+106,000
| New | +$10.9M |
|
846
Bankunited
BKU
$3.3B
| $11.1M | 0.02% |
290,670
-75,858
| -21% | -$2.87M |
|
847
Payoneer
PAYO
$2.41B
| $11.1M | 0.02% |
1,833,266
-17,346
| -0.9% | -$116K |
|
848
The Bancorp
TBBK
$2.73B
| $11.1M | 0.02% |
147,899
-259,079
| -64% | -$18.1M |
|
849
Andersons Inc
ANDE
$2.23B
| $11M | 0.02% |
277,257
+142,578
| +106% | +$5.49M |
|
850
Asana
ASAN
$2.25B
| $11M | 0.02% |
825,946
-228,071
| -22% | -$3.22M |
|
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.