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 | |
|---|---|---|---|---|---|---|
1951
Douglas Emmett
DEI
$1.97B
| $5.63M | ﹤0.01% |
477,411
+28,867
| +6% | +$325K |
|
1952
Phathom Pharmaceuticals
PHAT
$718M
| $5.63M | ﹤0.01% |
519,076
+36,940
| +8% | +$421K |
|
|
DQ
1953
Daqo New Energy
DQ
$919M
| $5.63M | ﹤0.01% |
420,250
-603,936
| -59% | -$11M |
|
1954
Prime Medicine
PRME
$615M
| $5.63M | ﹤0.01% |
1,524,511
-48,300
| -3% | -$160K |
|
1955
CALL
IonQ
IONQ
$18.2B
| $5.62M | ﹤0.01% |
105,500
+48,300
| +84% | +$2.45M |
|
1956
Fossil Group
FOSL
$332M
| $5.62M | ﹤0.01% |
1,356,790
-2,946
| -0.2% | -$13.2K |
|
1957
CF Bankshares
CFBK
$225M
| $5.61M | ﹤0.01% |
171,288
+122,387
| +250% | +$3.55M |
|
1958
Colgate-Palmolive
CL
$72.6B
| $5.61M | ﹤0.01% |
61,200
+56,500
| +1,202% | +$4.94M |
|
1959
CALL
ServiceNow
NOW
$133B
| $5.61M | ﹤0.01% |
56,500
+22,100
| +64% | +$2.19M |
|
|
PMTR
1960
Perimeter Acquisition Corp I
PMTR
$321M
| $5.6M | ﹤0.01% |
537,309
| – | – |
|
1961
C3.ai
AI
$1.6B
| $5.59M | ﹤0.01% |
615,324
-704,596
| -53% | -$6.69M |
|
1962
Apollo Global Management
APO
$78.4B
| $5.59M | ﹤0.01% |
47,248
+34,061
| +258% | +$4.28M |
|
1963
Crane Co
CR
$12B
| $5.57M | ﹤0.01% |
24,969
-13,500
| -35% | -$2.54M |
|
1964
Energy Vault
NRGV
$691M
| $5.56M | ﹤0.01% |
1,180,015
+574,365
| +95% | +$2.57M |
|
1965
Trupanion
TRUP
$1.36B
| $5.55M | ﹤0.01% |
224,035
+54,761
| +32% | +$1.33M |
|
1966
Freshworks
FRSH
$3.39B
| $5.55M | ﹤0.01% |
548,059
-873,605
| -61% | -$7.78M |
|
1967
Brookfield Asset Management
BAM
$83.5B
| $5.55M | ﹤0.01% |
123,656
+49,882
| +68% | +$2.36M |
|
1968
PUT
Quanta Services
PWR
$96.1B
| $5.54M | ﹤0.01% |
7,700
-1,300
| -14% | -$889K |
|
1969
Best Buy
BBY
$18.1B
| $5.53M | ﹤0.01% |
72,919
-19,246
| -21% | -$1.28M |
|
|
AII
1970
American Integrity Insurance
AII
$497M
| $5.53M | ﹤0.01% |
293,644
-45,469
| -13% | -$823K |
|
1971
RxSight
RXST
$260M
| $5.53M | ﹤0.01% |
1,147,048
-153,212
| -12% | -$925K |
|
1972
Booz Allen Hamilton
BAH
$9.27B
| $5.53M | ﹤0.01% |
91,094
-92,877
| -50% | -$7.09M |
|
|
MKLY
1973
McKinley Acquisition Corp
MKLY
$249M
| $5.52M | ﹤0.01% |
543,750
| – | – |
|
|
NWAX
1974
New America Acquisition I Corp
NWAX
$507M
| $5.52M | ﹤0.01% |
543,750
| – | – |
|
1975
Esquire Financial Holdings
ESQ
$1.4B
| $5.52M | ﹤0.01% |
46,331
+25,146
| +119% | +$2.79M |
|
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.