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 | |
|---|---|---|---|---|---|---|
3351
PUT
Halliburton
HAL
$29.4B
| $1.27M | ﹤0.01% |
37,300
+1,400
| +4% | +$54.7K |
|
3352
PUT
CoStar Group
CSGP
$13.1B
| $1.27M | ﹤0.01% |
44,700
-12,900
| -22% | -$444K |
|
3353
Ashland
ASH
$3.33B
| $1.27M | ﹤0.01% |
19,200
-43,162
| -69% | -$2.51M |
|
3354
PUT
Dutch Bros
BROS
$6.88B
| $1.26M | ﹤0.01% |
17,600
-6,700
| -28% | -$384K |
|
3355
CALL
MACOM Technology Solutions
MTSI
$20.4B
| $1.26M | ﹤0.01% |
+3,300
| New | +$1.09M |
|
3356
CALL
Tower Semiconductor
TSEM
$25.2B
| $1.25M | ﹤0.01% |
4,800
+2,000
| +71% | +$479K |
|
3357
PUT
Blackrock
BLK
$179B
| $1.25M | ﹤0.01% |
+1,300
| New | +$1.34M |
|
3358
CALL
Rambus
RMBS
$9.9B
| $1.25M | ﹤0.01% |
+9,400
| New | +$1.22M |
|
3359
PUT
Rocket Companies
RKT
$39.4B
| $1.25M | ﹤0.01% |
79,200
-39,100
| -33% | -$564K |
|
3360
PUT
SiriusXM
SIRI
$9.67B
| $1.25M | ﹤0.01% |
42,200
+18,000
| +74% | +$484K |
|
3361
La-Z-Boy
LZB
$1.35B
| $1.25M | ﹤0.01% |
31,069
+20,869
| +205% | +$754K |
|
3362
CALL
Hewlett Packard
HPE
$70.8B
| $1.25M | ﹤0.01% |
27,600
-6,400
| -19% | -$231K |
|
3363
CALL
Southern Company
SO
$102B
| $1.24M | ﹤0.01% |
13,000
+7,000
| +117% | +$659K |
|
3364
Miller Industries
MLR
$649M
| $1.24M | ﹤0.01% |
24,262
-60,269
| -71% | -$2.9M |
|
3365
Avalo Therapeutics
AVTX
$1.06B
| $1.24M | ﹤0.01% |
67,094
+2,669
| +4% | +$42.2K |
|
3366
Schwab US Dividend Equity ETF
SCHD
$111B
| $1.24M | ﹤0.01% |
+39,100
| New | +$1.24M |
|
3367
PUT
Camtek
CAMT
$6.85B
| $1.24M | ﹤0.01% |
+7,600
| New | +$1.35M |
|
3368
CALL
Edwards Lifesciences
EW
$51.8B
| $1.24M | ﹤0.01% |
13,700
-1,800
| -12% | -$151K |
|
3369
Global Payments
GPN
$24.7B
| $1.23M | ﹤0.01% |
+16,965
| New | +$1.17M |
|
3370
PUT
Alcoa
AA
$13.7B
| $1.23M | ﹤0.01% |
23,600
-18,800
| -44% | -$1.26M |
|
3371
Markel Group
MKL
$22.2B
| $1.23M | ﹤0.01% |
+630
| New | +$1.18M |
|
3372
CareCloud
CCLD
$107M
| $1.23M | ﹤0.01% |
579,826
+190,200
| +49% | +$492K |
|
3373
Helen of Troy
HELE
$677M
| $1.23M | ﹤0.01% |
+42,237
| New | +$999K |
|
|
BNT
3374
Brookfield Wealth Solutions
BNT
$12.4B
| $1.23M | ﹤0.01% |
28,759
+18,667
| +185% | +$837K |
|
3375
CALL
Keysight
KEYS
$53.8B
| $1.23M | ﹤0.01% |
+3,500
| New | +$1.19M |
|
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.