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 |
Intuit
INTU
|
+$753M |
| 2 |
Boston Scientific
BSX
|
+$540M |
| 3 |
Dow Inc
DOW
|
+$485M |
| 4 |
Wells Fargo
WFC
|
+$457M |
| 5 |
Goldman Sachs
GS
|
+$378M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.32B |
| 2 |
NVIDIA
NVDA
|
+$1.02B |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$787M |
| 4 |
SNDK
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.71% |
| 2 | Financials | 15.22% |
| 3 | Healthcare | 11.94% |
| 4 | Industrials | 11.55% |
| 5 | Consumer Discretionary | 9.6% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1651
Teva Pharmaceuticals
TEVA
$43.5B
| $7.84M | 0.01% |
231,287
-135,504
| -37% | -$4.51M |
|
1652
Salesforce
CRM
$171B
| $7.82M | 0.01% |
49,919
+45,014
| +918% | +$7.92M |
|
|
ATII
1653
Archimedes Tech SPAC Partners II Co
ATII
$316M
| $7.82M | 0.01% |
725,000
| – | – |
|
1654
Verra Mobility
VRRM
$693M
| $7.8M | 0.01% |
1,834,201
+1,801,901
| +5,579% | +$19M |
|
1655
Takeda Pharmaceutical
TAK
$58.1B
| $7.79M | 0.01% |
485,733
+174,033
| +56% | +$2.88M |
|
|
AXIA
1656
DELISTED
AXIA Energia
AXIA
| $7.78M | 0.01% |
736,552
-335,974
| -31% | -$3.82M |
|
1657
UMB Financial
UMBF
$11B
| $7.77M | 0.01% |
54,433
-7,402
| -12% | -$951K |
|
1658
CALL
Silicon Motion
SIMO
$8.76B
| $7.77M | 0.01% |
23,300
+20,100
| +628% | +$4.66M |
|
1659
Cognizant
CTSH
$27.9B
| $7.73M | 0.01% |
+199,638
| New | +$10.5M |
|
|
RYZ
1660
Ryerson Holding Corp
RYZ
$1.31B
| $7.72M | 0.01% |
313,790
+45,249
| +17% | +$1.2M |
|
1661
Bentley Systems
BSY
$11.2B
| $7.72M | 0.01% |
258,218
-813,752
| -76% | -$26.5M |
|
1662
Hanmi Financial
HAFC
$922M
| $7.71M | 0.01% |
238,045
-110,602
| -32% | -$3.3M |
|
1663
Range Resources
RRC
$9.59B
| $7.71M | 0.01% |
207,292
+23,199
| +13% | +$942K |
|
|
CWBC
1664
Community West Bancshares
CWBC
$703M
| $7.71M | 0.01% |
+286,953
| New | +$6.98M |
|
1665
PUT
SoFi Technologies
SOFI
$24.4B
| $7.69M | 0.01% |
429,100
-842,500
| -66% | -$14.3M |
|
1666
GeoPark
GPRK
$635M
| $7.69M | 0.01% |
845,282
-60,346
| -7% | -$588K |
|
1667
Appian
APPN
$2.74B
| $7.69M | 0.01% |
335,630
+216,564
| +182% | +$4.82M |
|
|
MDLN
1668
Medline Inc
MDLN
$30.1B
| $7.67M | 0.01% |
194,567
-943,981
| -83% | -$38M |
|
1669
Welltower
WELL
$172B
| $7.67M | 0.01% |
33,799
-141,152
| -81% | -$29.8M |
|
1670
Vulcan Materials
VMC
$35.8B
| $7.66M | 0.01% |
25,964
+4,424
| +21% | +$1.27M |
|
1671
PUT
JPMorgan Chase
JPM
$935B
| $7.66M | 0.01% |
23,400
-79,800
| -77% | -$24.8M |
|
|
TVA
1672
Texas Ventures Acquisition III Corp
TVA
$316M
| $7.65M | 0.01% |
725,000
| – | – |
|
1673
Karat Packaging
KRT
$958M
| $7.64M | 0.01% |
228,316
+19,559
| +9% | +$563K |
|
1674
Johnson Outdoors
JOUT
$497M
| $7.64M | 0.01% |
165,916
+41,948
| +34% | +$1.99M |
|
1675
Autoliv
ALV
$9.18B
| $7.63M | 0.01% |
65,700
-184,158
| -74% | -$21.9M |
|
Similar funds
John Overdeck's Q2 2026 Portfolio in Review
As of Q2 2026, John Overdeck held 5,589 positions worth $138B, up 11% from $124B the previous quarter. Its ten largest holdings account for 8.3% of the portfolio.
John Overdeck withdrew a net $4.38B in Q2 2026, closing 572 positions and reducing 1,756 holdings. Its most notable exit was State Street Technology Select Sector SPDR ETF, an estimated $172M position sold in full.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 19% a quarter earlier, followed by Financials and Healthcare.
Against the trend, John Overdeck opened a new position in Intuit worth $564M.
- John Overdeck's largest Q2 2026 buy was Intuit: 2,161,507 shares worth $564M.
- John Overdeck added most to Boston Scientific in Q2 2026, an estimated $540M increase.
- John Overdeck's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.32B.
- John Overdeck fully exited State Street Technology Select Sector SPDR ETF in Q2 2026, selling an estimated $172M.
- John Overdeck's ten largest holdings make up 8.3% of its $138B portfolio in Q2 2026.
- John Overdeck opened 1,050 new positions and closed 572 in Q2 2026.
- John Overdeck's portfolio value rose 11% quarter-over-quarter to $138B.
Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.