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 | |
|---|---|---|---|---|---|---|
|
EA
1401
DELISTED
Electronic Arts
EA
| $3.45M | 0.01% |
21,624
+18,400
| +571% | +$2.72M |
|
1402
Blend Labs
BLND
$355M
| $3.45M | 0.01% |
1,045,278
+148,376
| +17% | +$503K |
|
1403
S&T Bancorp
STBA
$1.77B
| $3.45M | 0.01% |
91,116
+42,662
| +88% | +$1.56M |
|
1404
Invesco Large Cap Growth ETF
PWB
$2.41B
| $3.44M | 0.01% |
+29,300
| New | +$3.06M |
|
1405
EverQuote
EVER
$938M
| $3.44M | 0.01% |
142,292
+30,676
| +27% | +$727K |
|
1406
GSK
GSK
$104B
| $3.44M | 0.01% |
89,500
| – | – |
|
1407
IonQ
IONQ
$16.6B
| $3.43M | 0.01% |
79,904
-802,300
| -91% | -$26.9M |
|
1408
PUT
Shake Shack
SHAK
$3.05B
| $3.43M | 0.01% |
24,400
-123,200
| -83% | -$13.4M |
|
1409
Carnival Corporation Ltd
CCL
$35.2B
| $3.42M | 0.01% |
121,797
-2,570,764
| -95% | -$55M |
|
1410
CONMED
CNMD
$1.54B
| $3.42M | 0.01% |
65,708
-33,970
| -34% | -$1.86M |
|
1411
Taboola.com
TBLA
$986M
| $3.42M | 0.01% |
934,694
+78,321
| +9% | +$255K |
|
1412
Hovnanian Enterprises
HOV
$739M
| $3.4M | 0.01% |
32,533
+23,959
| +279% | +$2.35M |
|
1413
Novavax
NVAX
$1.46B
| $3.4M | 0.01% |
539,246
+299,061
| +125% | +$1.98M |
|
1414
Darling Ingredients
DAR
$9.83B
| $3.4M | 0.01% |
89,540
-206,181
| -70% | -$6.79M |
|
1415
Invesco Dorsey Wright Industrials Momentum ETF
PRN
$395M
| $3.39M | 0.01% |
+21,600
| New | +$3.09M |
|
1416
FS KKR Capital
FSK
$3.33B
| $3.39M | 0.01% |
163,377
-79,039
| -33% | -$1.61M |
|
|
RANG
1417
Range Capital Acquisition Corp
RANG
$72.3M
| $3.39M | 0.01% |
332,291
| – | – |
|
|
FBRT
1418
Franklin BSP Realty Trust
FBRT
$701M
| $3.39M | 0.01% |
317,034
+263,275
| +490% | +$2.96M |
|
1419
Timken Company
TKR
$8.5B
| $3.39M | 0.01% |
46,699
-8,403
| -15% | -$572K |
|
|
FPI
1420
Farmland Partners
FPI
$452M
| $3.38M | 0.01% |
293,847
+59,487
| +25% | +$637K |
|
1421
Take-Two Interactive
TTWO
$43.7B
| $3.38M | 0.01% |
+13,926
| New | +$3.14M |
|
1422
State Street SPDR MSCI USA StrategicFactors ETF
QUS
$1.58B
| $3.36M | 0.01% |
+20,600
| New | +$3.21M |
|
1423
TaskUs
TASK
$718M
| $3.36M | 0.01% |
200,351
-3,826
| -2% | -$58.3K |
|
1424
Univest Financial
UVSP
$1.15B
| $3.35M | 0.01% |
111,681
+43,569
| +64% | +$1.27M |
|
1425
VTEX
VTEX
$605M
| $3.33M | 0.01% |
504,770
+143,334
| +40% | +$842K |
|
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.