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 | |
|---|---|---|---|---|---|---|
2976
Park Aerospace
PKE
$718M
| $432K | ﹤0.01% |
21,225
-21,114
| -50% | -$383K |
|
2977
PUT
Boeing
BA
$166B
| $432K | ﹤0.01% |
+2,000
| New | +$451K |
|
2978
Tigo Energy
TYGO
$80.6M
| $431K | ﹤0.01% |
+172,246
| New | +$257K |
|
2979
Genie Energy
GNE
$402M
| $430K | ﹤0.01% |
28,759
-912
| -3% | -$16.3K |
|
2980
Genesco
GCO
$390M
| $428K | ﹤0.01% |
14,776
-6,384
| -30% | -$176K |
|
2981
Red Violet
RDVT
$1.13B
| $428K | ﹤0.01% |
+8,183
| New | +$388K |
|
2982
PepGen
PEPG
$221M
| $427K | ﹤0.01% |
92,493
+28,753
| +45% | +$46.3K |
|
2983
CALL
Datadog
DDOG
$81.1B
| $427K | ﹤0.01% |
+3,000
| New | +$413K |
|
2984
Edgewise Therapeutics
EWTX
$4.86B
| $426K | ﹤0.01% |
+26,266
| New | +$373K |
|
2985
Revolution Medicines
RVMD
$45.3B
| $425K | ﹤0.01% |
+9,107
| New | +$357K |
|
|
SNCR
2986
DELISTED
Synchronoss Technologies
SNCR
| $425K | ﹤0.01% |
69,896
+5,909
| +9% | +$40.2K |
|
2987
MiMedx Group
MDXG
$622M
| $425K | ﹤0.01% |
60,861
-42,021
| -41% | -$292K |
|
2988
CALL
Enphase Energy
ENPH
$4.91B
| $425K | ﹤0.01% |
+12,000
| New | +$446K |
|
2989
First Horizon
FHN
$11.6B
| $424K | ﹤0.01% |
18,769
-84,749
| -82% | -$1.88M |
|
2990
GATX Corp
GATX
$6.3B
| $422K | ﹤0.01% |
2,417
-1,296
| -35% | -$210K |
|
2991
PUT
Fastenal
FAST
$58.8B
| $422K | ﹤0.01% |
+8,600
| New | +$406K |
|
2992
Cardiff Oncology
CRDF
$77.6M
| $420K | ﹤0.01% |
204,010
-239,511
| -54% | -$662K |
|
2993
LSB Industries
LXU
$772M
| $419K | ﹤0.01% |
+53,155
| New | +$431K |
|
|
PVBC
2994
DELISTED
Provident Bancorp
PVBC
| $419K | ﹤0.01% |
33,424
-3,962
| -11% | -$50.1K |
|
2995
PUT
United Parcel Service
UPS
$87.4B
| $418K | ﹤0.01% |
+5,000
| New | +$453K |
|
|
ELME
2996
Elme Communities
ELME
$149M
| $417K | ﹤0.01% |
24,746
-107,715
| -81% | -$1.78M |
|
|
SJT
2997
San Juan Basin Royalty Trust
SJT
$130M
| $417K | ﹤0.01% |
69,023
+11,863
| +21% | +$69.8K |
|
|
MESO
2998
Mesoblast
MESO
$2.16B
| $416K | ﹤0.01% |
25,849
-7,364
| -22% | -$108K |
|
|
PINE
2999
Alpine Income Property Trust
PINE
$352M
| $416K | ﹤0.01% |
29,350
-45,243
| -61% | -$661K |
|
3000
TTM Technologies
TTMI
$11.3B
| $416K | ﹤0.01% |
7,216
-24,754
| -77% | -$1.15M |
|
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.