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 | |
|---|---|---|---|---|---|---|
2876
CS Disco
LAW
$274M
| $532K | ﹤0.01% |
+82,340
| New | +$411K |
|
2877
Golub Capital BDC
GBDC
$3.44B
| $532K | ﹤0.01% |
38,848
-43,848
| -53% | -$646K |
|
2878
Companhia Siderúrgica Nacional
SID
$1.37B
| $528K | ﹤0.01% |
352,088
+289,288
| +461% | +$417K |
|
|
ADUR
2879
Aduro Clean Technologies
ADUR
$540M
| $528K | ﹤0.01% |
+39,395
| New | +$456K |
|
2880
PUT
Rocket Lab Corp
RKLB
$43.7B
| $527K | ﹤0.01% |
+11,000
| New | +$499K |
|
2881
Metropolitan Bank Holding Corp
MCB
$1.12B
| $527K | ﹤0.01% |
7,043
-26,263
| -79% | -$1.97M |
|
2882
VanEck Environmental Services ETF
EVX
$101M
| $526K | ﹤0.01% |
+13,500
| New | +$525K |
|
|
VIOT
2883
Viomi Technology
VIOT
$46.5M
| $525K | ﹤0.01% |
+157,162
| New | +$517K |
|
2884
CALL
Duke Energy
DUK
$95.1B
| $520K | ﹤0.01% |
+4,200
| New | +$510K |
|
2885
Eastern Bankshares
EBC
$5.17B
| $520K | ﹤0.01% |
28,624
-500
| -2% | -$8.25K |
|
2886
CEVA Inc
CEVA
$751M
| $519K | ﹤0.01% |
19,658
-22,803
| -54% | -$531K |
|
2887
PUT
Celsius Holdings
CELH
$8.86B
| $517K | ﹤0.01% |
+9,000
| New | +$471K |
|
2888
Summit Therapeutics
SMMT
$10.2B
| $517K | ﹤0.01% |
+25,030
| New | +$607K |
|
|
TE
2889
T1 Energy
TE
$1.27B
| $515K | ﹤0.01% |
236,255
+56,959
| +32% | +$90.8K |
|
2890
Pacific Biosciences
PACB
$398M
| $514K | ﹤0.01% |
+401,766
| New | +$544K |
|
2891
VanEck BDC Income ETF
BIZD
$1.71B
| $514K | ﹤0.01% |
+34,400
| New | +$550K |
|
|
SUIG
2892
Sui Group Holdings
SUIG
$90.6M
| $514K | ﹤0.01% |
+133,139
| New | +$601K |
|
2893
Krispy Kreme
DNUT
$626M
| $513K | ﹤0.01% |
+132,620
| New | +$457K |
|
2894
Murphy Oil
MUR
$5.16B
| $513K | ﹤0.01% |
+18,063
| New | +$456K |
|
2895
Leslie's
LESL
$5.44M
| $513K | ﹤0.01% |
93,209
+35,633
| +62% | +$263K |
|
2896
SPX Corp
SPXC
$10.1B
| $510K | ﹤0.01% |
2,732
-12,799
| -82% | -$2.37M |
|
|
CMRC
2897
Commerce.com Inc Series 1
CMRC
$186M
| $508K | ﹤0.01% |
+101,839
| New | +$490K |
|
2898
Expensify
EXFY
$248M
| $505K | ﹤0.01% |
273,152
-133,652
| -33% | -$271K |
|
2899
Health Catalyst
HCAT
$120M
| $505K | ﹤0.01% |
177,091
+134,665
| +317% | +$461K |
|
2900
Atour Lifestyle Holdings
ATAT
$4.73B
| $504K | ﹤0.01% |
+13,400
| New | +$490K |
|
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.