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 | |
|---|---|---|---|---|---|---|
601
DT Midstream
DTM
$12.8B
| $15.4M | 0.03% |
139,966
-49,028
| -26% | -$4.97M |
|
602
Grupo Cibest SA
CIB
$24B
| $15.3M | 0.03% |
330,354
+11,404
| +4% | +$474K |
|
603
AvePoint
AVPT
$2.83B
| $15.2M | 0.03% |
786,597
+416,144
| +112% | +$7.22M |
|
604
Century Communities
CCS
$2.01B
| $15.2M | 0.03% |
269,614
+125,196
| +87% | +$7.02M |
|
605
National Fuel Gas
NFG
$7.84B
| $15.2M | 0.03% |
179,077
-102,206
| -36% | -$8.25M |
|
606
Wells Fargo
WFC
$257B
| $15.1M | 0.03% |
188,944
+133,943
| +244% | +$9.66M |
|
607
Freshworks
FRSH
$3.45B
| $15.1M | 0.03% |
1,014,333
+27,927
| +3% | +$402K |
|
608
Hawaiian Electric Industries
HE
$1.98B
| $15.1M | 0.03% |
1,422,381
-785,214
| -36% | -$8.19M |
|
609
Live Nation Entertainment
LYV
$42.8B
| $15.1M | 0.03% |
99,884
+42,570
| +74% | +$5.86M |
|
|
SEI
610
Solaris Energy Infrastructure
SEI
$3.41B
| $15.1M | 0.03% |
533,233
+200,356
| +60% | +$4.72M |
|
611
Symbotic
SYM
$5.26B
| $15.1M | 0.03% |
387,503
+243,078
| +168% | +$6.37M |
|
612
MasTec
MTZ
$20.4B
| $14.9M | 0.03% |
87,345
+70,797
| +428% | +$10.2M |
|
613
Pathward Financial
CASH
$1.73B
| $14.9M | 0.03% |
187,763
-21,928
| -10% | -$1.68M |
|
614
NextEra Energy
NEE
$174B
| $14.8M | 0.03% |
213,136
+202,718
| +1,946% | +$14.1M |
|
615
Camping World
CWH
$667M
| $14.8M | 0.03% |
860,651
+488,949
| +132% | +$7.62M |
|
616
Walmart Inc
WMT
$833B
| $14.8M | 0.03% |
150,887
+134,221
| +805% | +$12.8M |
|
617
Booz Allen Hamilton
BAH
$9.2B
| $14.7M | 0.03% |
141,008
-1,044,793
| -88% | -$117M |
|
618
Primerica
PRI
$9.26B
| $14.7M | 0.03% |
53,574
+43,612
| +438% | +$11.6M |
|
619
Mueller Industries
MLI
$14B
| $14.6M | 0.03% |
367,220
+252,160
| +219% | +$9.52M |
|
620
Snap-on
SNA
$20.4B
| $14.5M | 0.03% |
46,551
+38,485
| +477% | +$12.2M |
|
621
Camtek
CAMT
$6.43B
| $14.5M | 0.03% |
171,195
-161,462
| -49% | -$10.9M |
|
|
MZTI
622
The Marzetti Company
MZTI
$3.17B
| $14.4M | 0.03% |
83,612
+81,986
| +5,042% | +$14.1M |
|
623
Ezcorp Inc
EZPW
$2.11B
| $14.4M | 0.03% |
1,039,564
+325,613
| +46% | +$4.71M |
|
624
LivaNova
LIVN
$4.32B
| $14.4M | 0.03% |
319,757
-37,076
| -10% | -$1.53M |
|
625
Canadian Pacific Kansas City
CP
$83.2B
| $14.3M | 0.03% |
180,621
-188,429
| -51% | -$14.5M |
|
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.