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 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$312M |
| 2 |
UnitedHealth
UNH
|
+$286M |
| 3 |
Duolingo
DUOL
|
+$247M |
| 4 |
Aon
AON
|
+$226M |
| 5 |
Chubb
CB
|
+$221M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$338M |
| 2 |
Marvell Technology
MRVL
|
+$241M |
| 3 |
Advanced Micro Devices
AMD
|
+$240M |
| 4 |
ServiceNow
NOW
|
+$203M |
| 5 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$193M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.79% |
| 2 | Financials | 14.46% |
| 3 | Healthcare | 12.9% |
| 4 | Consumer Discretionary | 8.97% |
| 5 | Industrials | 8.82% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2076
GoPro
GPRO
$112M
| $1.17M | ﹤0.01% |
1,546,912
+438,542
| +40% | +$285K |
|
2077
Caribou Biosciences
CRBU
$187M
| $1.17M | ﹤0.01% |
928,525
-52,773
| -5% | -$51.9K |
|
|
AHRT
2078
AH Realty Trust
AHRT
$507M
| $1.17M | ﹤0.01% |
169,736
+14,875
| +10% | +$103K |
|
2079
First Trust SMID Cap Rising Dividend Achievers ETF
SDVY
$11.6B
| $1.16M | ﹤0.01% |
+32,900
| New | +$1.1M |
|
2080
StealthGas
GASS
$350M
| $1.16M | ﹤0.01% |
180,745
-19,535
| -10% | -$112K |
|
|
HUT
2081
Hut 8
HUT
$10.5B
| $1.16M | ﹤0.01% |
62,143
-76,378
| -55% | -$1.14M |
|
2082
Wolverine World Wide
WWW
$1.69B
| $1.15M | ﹤0.01% |
63,623
-101,787
| -62% | -$1.55M |
|
2083
Build-A-Bear
BBW
$488M
| $1.15M | ﹤0.01% |
+22,302
| New | +$944K |
|
2084
Metallus
MTUS
$802M
| $1.15M | ﹤0.01% |
74,615
-22,730
| -23% | -$303K |
|
2085
Badger Meter
BMI
$3.93B
| $1.15M | ﹤0.01% |
+4,680
| New | +$1.06M |
|
2086
NWPX Infrastructure Inc
NWPX
$1.06B
| $1.15M | ﹤0.01% |
27,940
-21,046
| -43% | -$846K |
|
2087
J&J Snack Foods
JJSF
$1.66B
| $1.14M | ﹤0.01% |
+10,094
| New | +$1.23M |
|
2088
Millicom
TIGO
$16B
| $1.14M | ﹤0.01% |
30,469
-40,963
| -57% | -$1.4M |
|
2089
Evolus
EOLS
$597M
| $1.14M | ﹤0.01% |
123,860
-67,998
| -35% | -$696K |
|
2090
Newell Brands
NWL
$2.55B
| $1.14M | ﹤0.01% |
210,906
-360,038
| -63% | -$1.91M |
|
2091
Frequency Electronics
FEIM
$660M
| $1.14M | ﹤0.01% |
49,989
-14,993
| -23% | -$278K |
|
2092
Tidewater
TDW
$4.62B
| $1.13M | ﹤0.01% |
24,602
-20,766
| -46% | -$841K |
|
|
NXDR
2093
Nextdoor Holdings
NXDR
$921M
| $1.13M | ﹤0.01% |
682,704
-276,083
| -29% | -$417K |
|
|
LGI
2094
Lazard Global Total Return & Income Fund
LGI
$243M
| $1.13M | ﹤0.01% |
+67,393
| New | +$1.05M |
|
2095
Crexendo
CXDO
$209M
| $1.13M | ﹤0.01% |
186,369
+13,504
| +8% | +$70.5K |
|
|
MEGI
2096
MainStay CBRE Global Infrastructure Megatrends Term Fund
MEGI
$784M
| $1.13M | ﹤0.01% |
+79,398
| New | +$1.08M |
|
2097
America's Car Mart
CRMT
$20.3M
| $1.13M | ﹤0.01% |
20,110
-5,394
| -21% | -$267K |
|
|
GLXY
2098
Galaxy Digital Inc
GLXY
$4.8B
| $1.13M | ﹤0.01% |
+51,378
| New | +$1.04M |
|
2099
Arcturus Therapeutics
ARCT
$441M
| $1.12M | ﹤0.01% |
86,362
+49,007
| +131% | +$580K |
|
|
ELP
2100
DELISTED
Companhia Paranaense de Energia (COPEL)
ELP
| $1.12M | ﹤0.01% |
122,422
-69,831
| -36% | -$586K |
|
Similar funds
John Overdeck's Q2 2025 Portfolio in Review
As of Q2 2025, John Overdeck held 3,681 positions worth $56.5B, up 21% from $46.8B the previous quarter. Its ten largest holdings account for 7.7% of the portfolio.
John Overdeck deployed $2.96B of net new capital in Q2 2025, opening 509 new positions and adding to 1,200 existing holdings. Its largest new stake was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 18% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was Broadcom, an estimated $338M trimmed.
- John Overdeck's largest Q2 2025 buy was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
- John Overdeck added most to UnitedHealth in Q2 2025, an estimated $286M increase.
- John Overdeck's biggest Q2 2025 reduction was Broadcom, cutting an estimated $338M.
- John Overdeck fully exited State Street Utilities Select Sector SPDR ETF in Q2 2025, selling an estimated $134M.
- John Overdeck's ten largest holdings make up 7.7% of its $56.5B portfolio in Q2 2025.
- John Overdeck opened 509 new positions and closed 531 in Q2 2025.
- John Overdeck's portfolio value rose 21% quarter-over-quarter to $56.5B.
Based on Two Sigma Investments's 13F filing for Q2 2025, filed 14 Aug 2025.