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 | |
|---|---|---|---|---|---|---|
1651
Kosmos Energy
KOS
$1.64B
| $2.34M | ﹤0.01% |
1,358,236
+1,318,350
| +3,305% | +$2.39M |
|
1652
Metropolitan Bank Holding Corp
MCB
$1.13B
| $2.33M | ﹤0.01% |
33,306
-19,986
| -38% | -$1.24M |
|
1653
WisdomTree US SmallCap Earnings Fund
EES
$719M
| $2.33M | ﹤0.01% |
45,700
-35,300
| -44% | -$1.7M |
|
1654
Liquidity Services
LQDT
$1.35B
| $2.32M | ﹤0.01% |
98,493
+7,552
| +8% | +$204K |
|
|
GES
1655
PUT
DELISTED
Guess Inc
GES
| $2.32M | ﹤0.01% |
192,100
| – | – |
|
1656
Simpson Manufacturing
SSD
$7.65B
| $2.32M | ﹤0.01% |
14,924
+6,123
| +70% | +$948K |
|
1657
BOK Financial
BOKF
$8.5B
| $2.32M | ﹤0.01% |
23,737
-31,930
| -57% | -$3M |
|
1658
TTEC Holdings
TTEC
$67.5M
| $2.31M | ﹤0.01% |
480,831
-170,217
| -26% | -$780K |
|
1659
iShares 7-10 Year Treasury Bond ETF
IEF
$43.1B
| $2.31M | ﹤0.01% |
+24,136
| New | +$2.28M |
|
|
TIGR
1660
UP Fintech Holding
TIGR
$944M
| $2.31M | ﹤0.01% |
239,480
-1,971,305
| -89% | -$16.5M |
|
1661
Hims & Hers Health
HIMS
$7.39B
| $2.3M | ﹤0.01% |
46,198
-781,088
| -94% | -$35.3M |
|
|
JMIA
1662
Jumia Technologies
JMIA
$836M
| $2.3M | ﹤0.01% |
+572,480
| New | +$1.62M |
|
1663
Franklin US Large Cap Multifactor Index ETF
FLQL
$2.1B
| $2.3M | ﹤0.01% |
+36,400
| New | +$2.12M |
|
|
KREF
1664
KKR Real Estate Finance Trust
KREF
$485M
| $2.3M | ﹤0.01% |
261,788
-29,348
| -10% | -$270K |
|
1665
Coty
COTY
$2.38B
| $2.29M | ﹤0.01% |
492,599
-47,726
| -9% | -$236K |
|
1666
Ginkgo Bioworks
DNA
$490M
| $2.29M | ﹤0.01% |
203,607
-110,616
| -35% | -$857K |
|
|
IBAC
1667
IB Acquisition Corp
IBAC
$54.5M
| $2.28M | ﹤0.01% |
218,750
| – | – |
|
1668
Varex Imaging
VREX
$780M
| $2.28M | ﹤0.01% |
263,056
+40,226
| +18% | +$328K |
|
1669
Northrim BanCorp
NRIM
$570M
| $2.27M | ﹤0.01% |
97,288
+2,812
| +3% | +$58.5K |
|
1670
Newmont
NEM
$139B
| $2.26M | ﹤0.01% |
38,868
-1,173,455
| -97% | -$62.6M |
|
1671
Cullen/Frost Bankers
CFR
$10.2B
| $2.26M | ﹤0.01% |
17,604
-7,512
| -30% | -$918K |
|
1672
Emergent Biosolutions
EBS
$278M
| $2.26M | ﹤0.01% |
353,669
-43,131
| -11% | -$247K |
|
1673
Financial Institutions
FISI
$805M
| $2.25M | ﹤0.01% |
87,774
-18,180
| -17% | -$454K |
|
1674
Royal Gold
RGLD
$22.3B
| $2.25M | ﹤0.01% |
12,671
-104,925
| -89% | -$18.6M |
|
1675
W&T Offshore
WTI
$551M
| $2.25M | ﹤0.01% |
1,362,174
-539,531
| -28% | -$795K |
|
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.