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 | |
|---|---|---|---|---|---|---|
3126
Taysha Gene Therapies
TSHA
$1.98B
| $1.6M | ﹤0.01% |
234,716
-507,365
| -68% | -$3M |
|
3127
CALL
American Airlines Group
AAL
$9.15B
| $1.6M | ﹤0.01% |
+88,300
| New | +$1.18M |
|
3128
PUT
General Motors
GM
$77.2B
| $1.6M | ﹤0.01% |
20,700
-52,300
| -72% | -$4.11M |
|
|
BAFE
3129
Brown Advisory Flexible Equity ETF
BAFE
$1.75B
| $1.6M | ﹤0.01% |
+54,700
| New | +$1.54M |
|
3130
PUT
Centrus Energy
LEU
$3.72B
| $1.59M | ﹤0.01% |
9,500
-36,800
| -79% | -$6.88M |
|
3131
Strawberry Fields REIT
STRW
$195M
| $1.59M | ﹤0.01% |
115,945
-15,245
| -12% | -$198K |
|
3132
NEOS S&P 500 High Income ETF
SPYI
$11.3B
| $1.59M | ﹤0.01% |
30,000
-314,100
| -91% | -$16.5M |
|
|
USAR
3133
PUT
USA Rare Earth Inc
USAR
$4.71B
| $1.59M | ﹤0.01% |
73,800
-78,400
| -52% | -$1.79M |
|
3134
Toyota
TM
$234B
| $1.59M | ﹤0.01% |
+9,446
| New | +$1.79M |
|
|
3135
PUT
Dow Inc
DOW
$23.4B
| $1.59M | ﹤0.01% |
58,100
+26,800
| +86% | +$973K |
|
3136
CALL
Howmet Aerospace
HWM
$108B
| $1.59M | ﹤0.01% |
+5,900
| New | +$1.52M |
|
3137
Motley Fool 100 Index ETF
TMFC
$2.08B
| $1.58M | ﹤0.01% |
20,800
-91,900
| -82% | -$6.87M |
|
3138
Boston Beer
SAM
$1.91B
| $1.58M | ﹤0.01% |
8,947
+1,447
| +19% | +$293K |
|
|
LBRX
3139
LB Pharmaceuticals
LBRX
$1.54B
| $1.58M | ﹤0.01% |
48,652
+35,932
| +282% | +$1.06M |
|
3140
POET Technologies
POET
$1.43B
| $1.58M | ﹤0.01% |
153,346
+91,675
| +149% | +$998K |
|
3141
Invesco Energy Exploration & Production ETF
PXE
$87.6M
| $1.58M | ﹤0.01% |
+46,500
| New | +$1.69M |
|
3142
Codexis
CDXS
$183M
| $1.57M | ﹤0.01% |
696,599
+454,644
| +188% | +$1.13M |
|
3143
Clearwater Paper
CLW
$351M
| $1.57M | ﹤0.01% |
100,248
+58,328
| +139% | +$879K |
|
3144
Albertsons Companies
ACI
$6.01B
| $1.57M | ﹤0.01% |
115,987
-4,872
| -4% | -$78K |
|
3145
Thryv Holdings
THRY
$92.4M
| $1.57M | ﹤0.01% |
398,164
-147,684
| -27% | -$525K |
|
3146
PUT
Cardinal Health
CAH
$53.4B
| $1.57M | ﹤0.01% |
6,600
-4,300
| -39% | -$894K |
|
3147
Invesco Russell 1000 Dynamic Multifactor ETF
OMFL
$4.84B
| $1.56M | ﹤0.01% |
+22,800
| New | +$1.51M |
|
3148
Motorcar Parts of America
MPAA
$226M
| $1.56M | ﹤0.01% |
101,937
-12,793
| -11% | -$155K |
|
3149
lululemon athletica
LULU
$13.7B
| $1.56M | ﹤0.01% |
13,677
-68,865
| -83% | -$9.2M |
|
|
XOMA
3150
DELISTED
Xoma
XOMA
| $1.56M | ﹤0.01% |
36,744
+10,669
| +41% | +$433K |
|
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.