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 | |
|---|---|---|---|---|---|---|
2151
Ocular Therapeutix
OCUL
$2.44B
| $1.03M | ﹤0.01% |
110,832
-350,398
| -76% | -$2.74M |
|
2152
National Presto Industries
NPK
$1.11B
| $1.03M | ﹤0.01% |
10,484
-14,254
| -58% | -$1.25M |
|
|
USAS
2153
Americas Gold and Silver
USAS
$1.84B
| $1.02M | ﹤0.01% |
+507,480
| New | +$819K |
|
2154
Hawkins
HWKN
$2.45B
| $1.02M | ﹤0.01% |
7,210
-228
| -3% | -$28.7K |
|
2155
First Trust Value Line Dividend Fund
FVD
$8.33B
| $1.02M | ﹤0.01% |
22,900
-26,000
| -53% | -$1.14M |
|
|
CON
2156
Concentra Group Holdings
CON
$4.46B
| $1.02M | ﹤0.01% |
49,683
-3,749
| -7% | -$80.1K |
|
2157
Great Southern Bancorp
GSBC
$859M
| $1.02M | ﹤0.01% |
17,364
-5,454
| -24% | -$304K |
|
|
BCIC
2158
BCP Investment Corp
BCIC
$95.6M
| $1.02M | ﹤0.01% |
81,504
+6,135
| +8% | +$75K |
|
2159
ALPS O'Shares U.S. Quality Dividend ETF
OUSA
$759M
| $1.02M | ﹤0.01% |
+18,900
| New | +$988K |
|
2160
Beazer Homes USA
BZH
$885M
| $1.02M | ﹤0.01% |
45,529
-92,634
| -67% | -$1.92M |
|
2161
Fox Factory Holding Corp
FOXF
$886M
| $1.02M | ﹤0.01% |
39,170
+23,603
| +152% | +$553K |
|
2162
Kadant
KAI
$3.59B
| $1.02M | ﹤0.01% |
3,200
+2,400
| +300% | +$751K |
|
2163
Radiant Logistics
RLGT
$397M
| $1.02M | ﹤0.01% |
166,943
+79,950
| +92% | +$478K |
|
2164
Silvercrest Asset Management
SAMG
$78.1M
| $1.01M | ﹤0.01% |
63,948
+28,419
| +80% | +$429K |
|
2165
Tyra Biosciences
TYRA
$1.6B
| $1.01M | ﹤0.01% |
105,825
+41,007
| +63% | +$390K |
|
2166
Essential Utilities
WTRG
$11.6B
| $1.01M | ﹤0.01% |
+27,255
| New | +$1.06M |
|
2167
iShares Morningstar US Equity ETF
ILCB
$1.3B
| $1.01M | ﹤0.01% |
+11,800
| New | +$934K |
|
2168
8x8 Inc
EGHT
$286M
| $1.01M | ﹤0.01% |
514,563
-212,449
| -29% | -$375K |
|
2169
Vertical Aerospace
EVTL
$137M
| $1.01M | ﹤0.01% |
148,563
+118,573
| +395% | +$556K |
|
2170
Mativ Holdings
MATV
$677M
| $1.01M | ﹤0.01% |
147,377
+92,826
| +170% | +$535K |
|
2171
Arcutis Biotherapeutics
ARQT
$3.12B
| $1M | ﹤0.01% |
71,681
-79,888
| -53% | -$1.12M |
|
2172
LSI Industries
LYTS
$751M
| $1M | ﹤0.01% |
+59,037
| New | +$948K |
|
|
BULL
2173
Webull Corp
BULL
$4.67B
| $1M | ﹤0.01% |
+83,858
| New | +$1.3M |
|
2174
Ameris Bancorp
ABCB
$5.75B
| $998K | ﹤0.01% |
15,419
-61,071
| -80% | -$3.62M |
|
2175
Banco Macro
BMA
$4.86B
| $997K | ﹤0.01% |
14,200
-19,102
| -57% | -$1.58M |
|
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.