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John Overdeck Two Sigma Investments
AUM
$138B
Turnover
29.02%
1-Year Est. Return
41.87%
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.
This Fund
S&P 500
This Quarter Est. Return
+21.14%
1 Year Est. Return
+41.87%
3 Year Est. Return
+122.61%
5 Year Est. Return
+129.48%
10 Year Est. Return
+649.67%
AUM
$138B
AUM Growth
+$14.2B
(+11%)
Cap. Flow
-$5.38B
Cap. Flow % of AUM
Cap. Flow %
-3.9%
Top 10 Holdings %
Top 10 Hldgs %
8.28%
Holding
5,589
New
1,050
Increased
1,919
Reduced
1,756
Closed
572
Avg Time Held
Equity + Options
1.4
years
Top 10 Avg Time Held
Equity + Options
0.2
years
Top 20 Avg Time Held
Equity + Options
0.2
years
Avg Time Held Equity only
1.7
years
Top 10 Avg Time Held Equity only
0.2
years
Top 20 Avg Time Held Equity only
0.2
years
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 |
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.7% |
| 2 | Financials | 15.22% |
| 3 | Miscellaneous | 12.05% |
| 4 | Healthcare | 11.94% |
| 5 | Industrials | 11.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
3351
PUT
Halliburton
HAL
$28.3B
| $1.27M | ﹤0.01% |
37,300
+1,400
| +4% | +$54.7K |
2025 Q3
3 quarters
|
|
3352
PUT
CoStar Group
CSGP
$13.3B
| $1.27M | ﹤0.01% |
44,700
-12,900
| -22% | -$444K |
2026 Q1
1 quarter
|
|
3353
Ashland
ASH
$3.3B
| $1.27M | ﹤0.01% |
19,200
-43,162
| -69% | -$2.51M |
2025 Q3
3 quarters
|
|
3354
PUT
Dutch Bros
BROS
$5.83B
| $1.26M | ﹤0.01% |
17,600
-6,700
| -28% | -$384K |
2026 Q1
1 quarter
|
|
3355
CALL
MACOM Technology Solutions
MTSI
$20.9B
| $1.26M | ﹤0.01% |
+3,300
| New | +$1.09M |
2026 Q2
0 quarters
|
|
3356
CALL
Tower Semiconductor
TSEM
$21.5B
| $1.25M | ﹤0.01% |
4,800
+2,000
| +71% | +$479K |
2025 Q4
2 quarters
|
|
3357
PUT
Blackrock
BLK
$178B
| $1.25M | ﹤0.01% |
+1,300
| New | +$1.34M |
2026 Q2
0 quarters
|
|
3358
CALL
Rambus
RMBS
$10.1B
| $1.25M | ﹤0.01% |
+9,400
| New | +$1.22M |
2026 Q2
0 quarters
|
|
3359
PUT
Rocket Companies
RKT
$31.5B
| $1.25M | ﹤0.01% |
79,200
-39,100
| -33% | -$564K |
2026 Q1
1 quarter
|
|
3360
PUT
SiriusXM
SIRI
$9.09B
| $1.25M | ﹤0.01% |
42,200
+18,000
| +74% | +$484K |
2025 Q4
2 quarters
|
|
3361
La-Z-Boy
LZB
$1.15B
| $1.25M | ﹤0.01% |
31,069
+20,869
| +205% | +$754K |
2026 Q1
1 quarter
|
|
3362
CALL
Hewlett Packard
HPE
$77.2B
| $1.25M | ﹤0.01% |
27,600
-6,400
| -19% | -$231K |
2025 Q4
2 quarters
|
|
3363
CALL
Southern Company
SO
$104B
| $1.24M | ﹤0.01% |
13,000
+7,000
| +117% | +$659K |
2026 Q1
1 quarter
|
|
3364
Miller Industries
MLR
$599M
| $1.24M | ﹤0.01% |
24,262
-60,269
| -71% | -$2.9M |
2021 Q4
18 quarters
|
|
3365
Avalo Therapeutics
AVTX
$658M
| $1.24M | ﹤0.01% |
67,094
+2,669
| +4% | +$42.2K |
2025 Q2
4 quarters
|
|
3366
Schwab US Dividend Equity ETF
SCHD
$116B
| $1.24M | ﹤0.01% |
+39,100
| New | +$1.24M |
2026 Q2
0 quarters
|
|
3367
PUT
Camtek
CAMT
$6.21B
| $1.24M | ﹤0.01% |
+7,600
| New | +$1.35M |
2026 Q2
0 quarters
|
|
3368
CALL
Edwards Lifesciences
EW
$51B
| $1.24M | ﹤0.01% |
13,700
-1,800
| -12% | -$151K |
2026 Q1
1 quarter
|
|
3369
Global Payments
GPN
$22.1B
| $1.23M | ﹤0.01% |
+16,965
| New | +$1.17M |
2026 Q2
0 quarters
|
|
3370
PUT
Alcoa
AA
$10.7B
| $1.23M | ﹤0.01% |
23,600
-18,800
| -44% | -$1.26M |
2025 Q4
2 quarters
|
|
3371
Markel Group
MKL
$23.2B
| $1.23M | ﹤0.01% |
+630
| New | +$1.18M |
2026 Q2
0 quarters
|
|
3372
CareCloud
CCLD
$75.2M
| $1.23M | ﹤0.01% |
579,826
+190,200
| +49% | +$492K |
2024 Q2
8 quarters
|
|
3373
Helen of Troy
HELE
$664M
| $1.23M | ﹤0.01% |
+42,237
| New | +$999K |
2026 Q2
0 quarters
|
|
3374
Brookfield Wealth Solutions
BNT
$11.1B
| $1.23M | ﹤0.01% |
28,759
+18,667
| +185% | +$837K |
2026 Q1
1 quarter
|
|
3375
CALL
Keysight
KEYS
$58.1B
| $1.23M | ﹤0.01% |
+3,500
| New | +$1.19M |
2026 Q2
0 quarters
|
|
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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 $5.38B 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 Miscellaneous.
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.