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 | |
|---|---|---|---|---|---|---|
2076
Flywire
FLYW
$2.34B
| $1.93M | ﹤0.01% |
142,611
+109,758
| +334% | +$1.35M |
|
|
JHG
2077
DELISTED
Janus Henderson
JHG
| $1.93M | ﹤0.01% |
43,358
+28,515
| +192% | +$1.23M |
|
2078
Manitowoc
MTW
$702M
| $1.93M | ﹤0.01% |
192,784
-40,768
| -17% | -$453K |
|
2079
Eversource Energy
ES
$26.8B
| $1.93M | ﹤0.01% |
27,100
-18,588
| -41% | -$1.22M |
|
|
TEN
2080
Tsakos Energy Navigation Ltd
TEN
$1.27B
| $1.92M | ﹤0.01% |
86,623
+12,758
| +17% | +$268K |
|
2081
AtaiBeckley Inc
ATAI
$2.76B
| $1.92M | ﹤0.01% |
363,826
-146,235
| -29% | -$594K |
|
2082
Innoviz Technologies
INVZ
$101M
| $1.92M | ﹤0.01% |
939,469
+653,032
| +228% | +$1.11M |
|
|
OPLN
2083
Openlane
OPLN
$4.19B
| $1.91M | ﹤0.01% |
66,472
-78,434
| -54% | -$2.14M |
|
|
AXIA
2084
DELISTED
AXIA Energia
AXIA
| $1.91M | ﹤0.01% |
243,475
-95,147
| -28% | -$599K |
|
|
NSLR
2085
Neostellar Capital Corp
NSLR
$272M
| $1.91M | ﹤0.01% |
211,905
+138,818
| +190% | +$1.2M |
|
|
WSR
2086
DELISTED
Whitestone REIT
WSR
| $1.91M | ﹤0.01% |
155,302
+98,979
| +176% | +$1.25M |
|
2087
Cirrus Logic
CRUS
$5.58B
| $1.9M | ﹤0.01% |
15,201
-3,718
| -20% | -$414K |
|
2088
Columbia Financial
CLBK
$1.21B
| $1.9M | ﹤0.01% |
126,592
+66,238
| +110% | +$987K |
|
2089
Celldex Therapeutics
CLDX
$3.24B
| $1.9M | ﹤0.01% |
73,401
-7,332
| -9% | -$170K |
|
|
VOYG
2090
Voyager Technologies
VOYG
$2.11B
| $1.89M | ﹤0.01% |
+63,473
| New | +$2.2M |
|
|
HDSN
2091
Hudson Technologies
HDSN
$230M
| $1.89M | ﹤0.01% |
190,221
-163,058
| -46% | -$1.53M |
|
|
ALEX
2092
DELISTED
Alexander & Baldwin
ALEX
| $1.89M | ﹤0.01% |
103,824
+993
| +1% | +$18.2K |
|
2093
CALL
Abbott
ABT
$201B
| $1.89M | ﹤0.01% |
+14,100
| New | +$1.85M |
|
2094
Shell
SHEL
$254B
| $1.89M | ﹤0.01% |
26,400
+4,900
| +23% | +$353K |
|
2095
Antero Midstream
AM
$10.4B
| $1.89M | ﹤0.01% |
97,100
| – | – |
|
2096
Silicon Laboratories
SLAB
$7.29B
| $1.88M | ﹤0.01% |
+14,363
| New | +$1.96M |
|
2097
Third Coast Bancshares
TCBX
$757M
| $1.88M | ﹤0.01% |
49,433
-14,427
| -23% | -$548K |
|
2098
Universal Display
OLED
$4.11B
| $1.87M | ﹤0.01% |
+12,994
| New | +$1.89M |
|
|
QSEA
2099
Quartzsea Acquisition Corp
QSEA
$107M
| $1.87M | ﹤0.01% |
184,128
-76,871
| -29% | -$777K |
|
2100
Scholastic
SCHL
$773M
| $1.86M | ﹤0.01% |
68,091
-82,300
| -55% | -$2.03M |
|
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.