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 | |
|---|---|---|---|---|---|---|
826
SouthState Bank Corp
SSB
$10.4B
| $8.92M | 0.02% |
+96,890
| New | +$8.51M |
|
827
XPO
XPO
$22.5B
| $8.91M | 0.02% |
70,559
+42,856
| +155% | +$4.81M |
|
828
Travelers Companies
TRV
$77.3B
| $8.85M | 0.02% |
33,079
+25,048
| +312% | +$6.6M |
|
829
Penumbra
PEN
$12.8B
| $8.83M | 0.02% |
+34,400
| New | +$9.36M |
|
830
ArcBest
ARCB
$3.01B
| $8.83M | 0.02% |
114,603
+64,110
| +127% | +$4.17M |
|
|
WENNU
831
Wen Acquisition Corp Unit
WENNU
| $8.81M | 0.02% |
+833,694
| New | +$8.84M |
|
832
News Corp Class A
NWSA
$16.6B
| $8.81M | 0.02% |
296,356
+183,573
| +163% | +$5.05M |
|
833
Mirum Pharmaceuticals
MIRM
$5.9B
| $8.74M | 0.02% |
171,814
-3,312
| -2% | -$147K |
|
834
Kinetik
KNTK
$4.4B
| $8.72M | 0.02% |
197,896
-202,118
| -51% | -$8.87M |
|
835
Trex
TREX
$4.82B
| $8.7M | 0.02% |
+160,035
| New | +$9.07M |
|
836
Bank of Hawaii
BOH
$3.03B
| $8.69M | 0.02% |
128,751
+82,934
| +181% | +$5.51M |
|
837
First Busey Corp
BUSE
$2.5B
| $8.69M | 0.02% |
379,797
-21,084
| -5% | -$457K |
|
838
iShares Morningstar Growth ETF
ILCG
$3.15B
| $8.68M | 0.02% |
89,600
+82,000
| +1,079% | +$7.12M |
|
|
AAMI
839
Acadian Asset Management
AAMI
$3.26B
| $8.67M | 0.02% |
246,000
-9,675
| -4% | -$281K |
|
|
NEE.PRT
840
NextEra Energy 7.234% Corporate Units
NEE.PRT
$1.45B
| $8.65M | 0.02% |
195,378
-388,475
| -67% | -$17.2M |
|
841
Eldorado Gold
EGO
$12.1B
| $8.63M | 0.02% |
424,087
+306,843
| +262% | +$5.97M |
|
842
PUT
Spectrum Brands
SPB
$2.03B
| $8.62M | 0.02% |
162,600
-26,700
| -14% | -$1.59M |
|
843
New Jersey Resources
NJR
$5.45B
| $8.62M | 0.02% |
192,240
+54,717
| +40% | +$2.56M |
|
844
ICF International
ICFI
$1.59B
| $8.61M | 0.02% |
101,642
-62,036
| -38% | -$5.26M |
|
845
New Fortress Energy
NFE
$78.7M
| $8.61M | 0.02% |
2,592,342
+2,364,920
| +1,040% | +$10.3M |
|
|
LADR
846
Ladder Capital
LADR
$1.27B
| $8.61M | 0.02% |
800,599
+232,286
| +41% | +$2.44M |
|
847
Triple Flag Precious Metals
TFPM
$7.15B
| $8.6M | 0.02% |
363,104
+60,197
| +20% | +$1.32M |
|
848
Huron Consulting
HURN
$2.59B
| $8.59M | 0.02% |
62,481
-51,237
| -45% | -$7.28M |
|
849
Factset
FDS
$10.9B
| $8.59M | 0.02% |
19,211
-14,819
| -44% | -$6.49M |
|
850
Acushnet Holdings
GOLF
$5.24B
| $8.59M | 0.02% |
117,918
-105,342
| -47% | -$7.1M |
|
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.