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 | |
|---|---|---|---|---|---|---|
|
MSB
2926
Mesabi Trust
MSB
$305M
| $480K | ﹤0.01% |
16,409
-12,415
| -43% | -$364K |
|
2927
FreightCar America
RAIL
$234M
| $479K | ﹤0.01% |
48,958
-29,629
| -38% | -$283K |
|
2928
Forward Air
FWRD
$594M
| $478K | ﹤0.01% |
18,657
-6,134
| -25% | -$176K |
|
2929
Jakks Pacific
JAKK
$292M
| $478K | ﹤0.01% |
25,532
-15,840
| -38% | -$291K |
|
2930
Cognyte Software
CGNT
$631M
| $477K | ﹤0.01% |
56,800
-5,400
| -9% | -$47.8K |
|
2931
Star Group
SGU
$414M
| $477K | ﹤0.01% |
40,331
-3,344
| -8% | -$39.1K |
|
2932
Surgery Partners
SGRY
$1.83B
| $477K | ﹤0.01% |
22,034
+4,137
| +23% | +$92.3K |
|
2933
Viridian Therapeutics
VRDN
$2.72B
| $475K | ﹤0.01% |
22,011
-47,966
| -69% | -$865K |
|
|
RDNW
2934
RideNow Group
RDNW
$231M
| $475K | ﹤0.01% |
+107,867
| New | +$344K |
|
|
WBTN
2935
WEBTOON Entertainment Inc
WBTN
$1.3B
| $472K | ﹤0.01% |
+24,319
| New | +$324K |
|
2936
Alto Neuroscience
ANRO
$1.42B
| $469K | ﹤0.01% |
116,579
+71,844
| +161% | +$238K |
|
2937
OmniAb
OABI
$685M
| $467K | ﹤0.01% |
291,735
+60,047
| +26% | +$110K |
|
2938
MDU Resources
MDU
$4.2B
| $464K | ﹤0.01% |
26,059
-94,408
| -78% | -$1.58M |
|
2939
Dole
DOLE
$1.27B
| $461K | ﹤0.01% |
+34,333
| New | +$482K |
|
|
FSFG
2940
DELISTED
First Savings Financial Group
FSFG
| $461K | ﹤0.01% |
+14,663
| New | +$394K |
|
2941
Pacer US Cash Cows Growth ETF
BUL
$141M
| $461K | ﹤0.01% |
+8,800
| New | +$458K |
|
2942
Precision BioSciences
DTIL
$233M
| $459K | ﹤0.01% |
83,092
+66,729
| +408% | +$320K |
|
2943
Schwab US Broad Market ETF
SCHB
$44.4B
| $455K | ﹤0.01% |
17,700
| – | – |
|
2944
Definitive Healthcare
DH
$77M
| $455K | ﹤0.01% |
111,980
-28,530
| -20% | -$114K |
|
2945
Century Therapeutics
IPSC
$384M
| $454K | ﹤0.01% |
911,446
+338,902
| +59% | +$183K |
|
2946
CALL
Boeing
BA
$166B
| $453K | ﹤0.01% |
+2,100
| New | +$473K |
|
|
ZBIO
2947
Zenas BioPharma
ZBIO
$2.06B
| $452K | ﹤0.01% |
20,382
+765
| +4% | +$12.5K |
|
|
ILPT
2948
Industrial Logistics Properties Trust
ILPT
$562M
| $452K | ﹤0.01% |
77,577
+55,977
| +259% | +$322K |
|
2949
Hooker Furnishings Corp
HOFT
$155M
| $449K | ﹤0.01% |
44,264
+26,963
| +156% | +$282K |
|
2950
Ferguson
FERG
$45.7B
| $449K | ﹤0.01% |
+2,000
| New | +$453K |
|
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.