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 | |
|---|---|---|---|---|---|---|
|
DFUS
3851
Dimensional US Equity ETF
DFUS
$21.5B
| $664K | ﹤0.01% |
8,100
+2,100
| +35% | +$166K |
|
3852
PUT
AstraZeneca
AZN
$257B
| $664K | ﹤0.01% |
3,500
-2,500
| -42% | -$470K |
|
3853
JPMorgan Small & Mid Cap Enhanced Equity ETF
JMEE
$2.93B
| $663K | ﹤0.01% |
+8,500
| New | +$623K |
|
3854
Equillium
EQ
$146M
| $662K | ﹤0.01% |
206,853
-39,320
| -16% | -$94.2K |
|
3855
PUT
CarMax
KMX
$8.82B
| $661K | ﹤0.01% |
12,500
+1,700
| +16% | +$74K |
|
3856
PUT
Workday
WDAY
$49.4B
| $661K | ﹤0.01% |
5,400
+1,400
| +35% | +$177K |
|
3857
PUT
eBay
EBAY
$46.3B
| $659K | ﹤0.01% |
5,900
-8,100
| -58% | -$864K |
|
3858
Erasca
ERAS
$6.17B
| $657K | ﹤0.01% |
35,874
+20,074
| +127% | +$287K |
|
3859
Greenfire Resources
GFR
$948M
| $656K | ﹤0.01% |
+116,171
| New | +$691K |
|
3860
PUT
Fluence Energy
FLNC
$1.62B
| $656K | ﹤0.01% |
33,000
-55,200
| -63% | -$1.03M |
|
3861
Consolidated Water Co
CWCO
$472M
| $656K | ﹤0.01% |
22,238
-10,902
| -33% | -$342K |
|
3862
CALL
VanEck Semiconductor ETF
SMH
$68.6B
| $656K | ﹤0.01% |
+1,000
| New | +$546K |
|
|
3863
PUT
VanEck Semiconductor ETF
SMH
$68.6B
| $656K | ﹤0.01% |
+1,000
| New | +$546K |
|
3864
General Mills
GIS
$21.4B
| $655K | ﹤0.01% |
18,818
-3,045,368
| -99% | -$105M |
|
3865
Fortress Biotech
FBIO
$95.7M
| $654K | ﹤0.01% |
213,786
+16,961
| +9% | +$43.7K |
|
3866
Karooooo
KARO
$1.98B
| $653K | ﹤0.01% |
13,221
-7,067
| -35% | -$345K |
|
3867
Hooker Furnishings Corp
HOFT
$155M
| $652K | ﹤0.01% |
36,561
+12,597
| +53% | +$172K |
|
3868
Santander
BSBR
$43B
| $651K | ﹤0.01% |
124,086
+29,611
| +31% | +$168K |
|
3869
PUT
Edwards Lifesciences
EW
$51.8B
| $651K | ﹤0.01% |
7,200
-2,400
| -25% | -$201K |
|
3870
Advantage Solutions
ADV
$441M
| $649K | ﹤0.01% |
+15,003
| New | +$531K |
|
3871
Inter&Co
INTR
$2.38B
| $649K | ﹤0.01% |
119,442
-1,167,346
| -91% | -$7.84M |
|
3872
Fennec Pharmaceuticals
FENC
$396M
| $649K | ﹤0.01% |
+60,332
| New | +$493K |
|
3873
PUT
Five Below
FIVE
$13.8B
| $647K | ﹤0.01% |
+3,600
| New | +$775K |
|
3874
PUT
AngloGold Ashanti
AU
$61.3B
| $647K | ﹤0.01% |
8,000
+700
| +10% | +$66.5K |
|
|
FLG
3875
PUT
Flagstar Bank National Association
FLG
$5.59B
| $647K | ﹤0.01% |
43,300
-10,600
| -20% | -$150K |
|
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.