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 | |
|---|---|---|---|---|---|---|
4026
CALL
Antero Resources
AR
$11.7B
| $538K | ﹤0.01% |
15,300
+3,400
| +29% | +$125K |
|
|
EROK
4027
EagleRock Land
EROK
$701M
| $537K | ﹤0.01% |
+25,290
| New | +$546K |
|
4028
Idexx Laboratories
IDXX
$43.9B
| $537K | ﹤0.01% |
1,020
+79
| +8% | +$44.3K |
|
4029
CALL
Keurig Dr Pepper
KDP
$43.6B
| $537K | ﹤0.01% |
16,400
+100
| +0.6% | +$2.91K |
|
4030
PUT
Restaurant Brands International
QSR
$28.2B
| $537K | ﹤0.01% |
+7,400
| New | +$563K |
|
4031
BJ's Restaurants
BJRI
$1.42B
| $534K | ﹤0.01% |
8,800
-1,700
| -16% | -$74.4K |
|
4032
Main Street Capital
MAIN
$5.45B
| $534K | ﹤0.01% |
10,300
-513,738
| -98% | -$27.1M |
|
4033
Mativ Holdings
MATV
$688M
| $534K | ﹤0.01% |
70,559
-249,660
| -78% | -$2.15M |
|
4034
PUT
Vale
VALE
$62.1B
| $534K | ﹤0.01% |
+35,500
| New | +$578K |
|
4035
CALL
MKS Inc
MKSI
$18.9B
| $534K | ﹤0.01% |
+1,200
| New | +$376K |
|
4036
CALL
Zimmer Biomet
ZBH
$19.3B
| $534K | ﹤0.01% |
6,200
-2,900
| -32% | -$254K |
|
4037
PUT
D-Wave Quantum Inc
QBTS
$7.59B
| $533K | ﹤0.01% |
22,200
-167,600
| -88% | -$3.68M |
|
4038
LegalZoom.com
LZ
$998M
| $531K | ﹤0.01% |
86,700
-2,500
| -3% | -$15.3K |
|
4039
CALL
Ball Corp
BALL
$16.8B
| $530K | ﹤0.01% |
8,500
-300
| -3% | -$17.6K |
|
4040
CALL
TC Energy
TRP
$64.6B
| $530K | ﹤0.01% |
+8,000
| New | +$529K |
|
4041
Champion Homes
SKY
$4.9B
| $529K | ﹤0.01% |
+6,000
| New | +$459K |
|
4042
Invesco Dorsey Wright Basic Materials Momentum ETF
PYZ
$76.2M
| $529K | ﹤0.01% |
+4,200
| New | +$536K |
|
4043
CALL
Universal Display
OLED
$3.95B
| $528K | ﹤0.01% |
+6,100
| New | +$563K |
|
|
4044
PUT
Universal Display
OLED
$3.95B
| $528K | ﹤0.01% |
+6,100
| New | +$563K |
|
4045
CALL
A.O. Smith
AOS
$8.57B
| $527K | ﹤0.01% |
8,400
-4,900
| -37% | -$297K |
|
4046
CALL
American Water Works
AWK
$26.9B
| $526K | ﹤0.01% |
+4,000
| New | +$514K |
|
|
FSCS
4047
First Trust SMID Capital Strength ETF
FSCS
$59M
| $526K | ﹤0.01% |
14,300
-1,200
| -8% | -$43.1K |
|
4048
PUT
Lennar Class A
LEN
$21B
| $525K | ﹤0.01% |
+5,800
| New | +$519K |
|
4049
Scholar Rock
SRRK
$6.88B
| $525K | ﹤0.01% |
9,540
-169,132
| -95% | -$8.17M |
|
4050
Chesapeake Utilities
CPK
$3.23B
| $524K | ﹤0.01% |
+4,280
| New | +$537K |
|
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.