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 | |
|---|---|---|---|---|---|---|
2626
PUT
Qualcomm
QCOM
$169B
| $832K | ﹤0.01% |
+5,000
| New | +$793K |
|
2627
State Street SPDR S&P Biotech ETF
XBI
$11.8B
| $832K | ﹤0.01% |
+8,300
| New | +$748K |
|
|
TBI
2628
Trueblue
TBI
$322M
| $832K | ﹤0.01% |
135,663
+82,389
| +155% | +$521K |
|
2629
Hagerty
HGTY
$1.35B
| $831K | ﹤0.01% |
69,042
-16,755
| -20% | -$186K |
|
|
MDV
2630
DELISTED
Modiv Industrial
MDV
| $824K | ﹤0.01% |
+56,311
| New | +$832K |
|
|
ETV
2631
Eaton Vance Tax-Managed Buy-Write Opportunities Fund
ETV
$1.76B
| $824K | ﹤0.01% |
+57,851
| New | +$807K |
|
2632
Goldgroup Mining
GORO
$283M
| $824K | ﹤0.01% |
985,739
+913,684
| +1,268% | +$565K |
|
2633
PUT
Cleveland-Cliffs
CLF
$6.51B
| $822K | ﹤0.01% |
+67,400
| New | +$709K |
|
2634
Voya Financial
VOYA
$8.97B
| $817K | ﹤0.01% |
10,929
-45,055
| -80% | -$3.32M |
|
2635
MSC Industrial Direct
MSM
$6.61B
| $817K | ﹤0.01% |
+8,868
| New | +$791K |
|
|
UROY
2636
Uranium Royalty Corp
UROY
$1.69B
| $816K | ﹤0.01% |
+189,672
| New | +$573K |
|
2637
CALL
D-Wave Quantum Inc
QBTS
$7.11B
| $815K | ﹤0.01% |
+33,000
| New | +$601K |
|
|
RPT
2638
Rithm Property Trust
RPT
$102M
| $815K | ﹤0.01% |
53,884
+25,693
| +91% | +$407K |
|
2639
PUT
Citigroup
C
$223B
| $812K | ﹤0.01% |
+8,000
| New | +$759K |
|
2640
Select Water Solutions
WTTR
$2.5B
| $811K | ﹤0.01% |
75,896
-61,603
| -45% | -$563K |
|
2641
Ubiquiti
UI
$34.1B
| $811K | ﹤0.01% |
1,228
+3
| +0.2% | +$1.5K |
|
2642
AZZ Inc
AZZ
$4.19B
| $811K | ﹤0.01% |
7,428
-21,503
| -74% | -$2.39M |
|
2643
C&F Financial
CFFI
$287M
| $810K | ﹤0.01% |
12,058
+1,669
| +16% | +$113K |
|
2644
Transcat
TRNS
$827M
| $809K | ﹤0.01% |
+11,057
| New | +$891K |
|
|
2645
PUT
Advanced Micro Devices
AMD
$781B
| $809K | ﹤0.01% |
+5,000
| New | +$807K |
|
2646
Vinci Compass Investments Ltd
VINP
$613M
| $805K | ﹤0.01% |
74,880
+58,131
| +347% | +$578K |
|
2647
One Stop Systems
OSS
$280M
| $800K | ﹤0.01% |
+149,198
| New | +$817K |
|
|
KREF
2648
KKR Real Estate Finance Trust
KREF
$488M
| $800K | ﹤0.01% |
88,839
-172,949
| -66% | -$1.61M |
|
2649
RE/MAX Holdings
RMAX
$263M
| $799K | ﹤0.01% |
+84,776
| New | +$748K |
|
2650
Energy Services of America
ESOA
$217M
| $799K | ﹤0.01% |
77,211
+6,785
| +10% | +$68.5K |
|
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.