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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 | |
|---|---|---|---|---|---|---|---|
3976
DELISTED
KORE Group Holdings
KORE
| $572K | ﹤0.01% |
61,948
+25,256
| +69% | +$232K |
2026 Q1
1 quarter
|
|
3977
PUT
Equinor
EQNR
$108B
| $571K | ﹤0.01% |
+18,200
| New | +$680K |
2026 Q2
0 quarters
|
|
3978
Putnam BDC Income ETF
PBDC
$269M
| $571K | ﹤0.01% |
+21,000
| New | +$575K |
2026 Q2
0 quarters
|
|
3979
Huron Consulting
HURN
$2.88B
| $571K | ﹤0.01% |
6,335
-4,761
| -43% | -$545K |
2021 Q3
19 quarters
|
|
3980
Greene County Bancorp
GCBC
$595M
| $571K | ﹤0.01% |
16,991
-2,585
| -13% | -$66.5K |
2025 Q3
3 quarters
|
|
3981
Rezolve AI
RZLV
$654M
| $570K | ﹤0.01% |
+180,817
| New | +$476K |
2026 Q2
0 quarters
|
|
3982
Cedar Fair
FUN
$804M
| $570K | ﹤0.01% |
+26,740
| New | +$546K |
2026 Q2
0 quarters
|
|
3983
CALL
LyondellBasell Industries
LYB
$20.7B
| $569K | ﹤0.01% |
10,800
+1,800
| +20% | +$124K |
2025 Q4
2 quarters
|
|
3984
CALL
Core Natural Resources Inc
CNR
$4.33B
| $568K | ﹤0.01% |
+7,100
| New | +$629K |
2026 Q2
0 quarters
|
|
3985
PUT
General Dynamics
GD
$93.2B
| $567K | ﹤0.01% |
+1,600
| New | +$548K |
2026 Q2
0 quarters
|
|
3986
PUT
Boston Beer
SAM
$1.9B
| $566K | ﹤0.01% |
3,200
+2,200
| +220% | +$446K |
2026 Q1
1 quarter
|
|
3987
Banco Santander Chile
BSAC
$15.6B
| $566K | ﹤0.01% |
17,174
-14,278
| -45% | -$462K |
2024 Q3
7 quarters
|
|
3988
PUT
Microchip Technology
MCHP
$41.2B
| $565K | ﹤0.01% |
+6,200
| New | +$553K |
2026 Q2
0 quarters
|
|
3989
Biomea Fusion
BMEA
$53.3M
| $565K | ﹤0.01% |
384,459
-4,237
| -1% | -$6.32K |
2022 Q4
14 quarters
|
|
3990
Webull Corp
BULL
$3.25B
| $564K | ﹤0.01% |
+86,500
| New | +$560K |
2026 Q2
0 quarters
|
|
3991
PUT
LPL Financial
LPLA
$25.3B
| $563K | ﹤0.01% |
2,000
| – | – |
2026 Q1
1 quarter
|
|
3992
Playboy Inc
PLBY
$135M
| $563K | ﹤0.01% |
461,632
+12,912
| +3% | +$19.6K |
2025 Q4
2 quarters
|
|
3993
PUT
Embraer S.A. ADS
EMBJ
$12.9B
| $561K | ﹤0.01% |
8,800
+2,800
| +47% | +$172K |
2026 Q1
1 quarter
|
|
3994
PUT
APA Corp
APA
$17.5B
| $560K | ﹤0.01% |
17,200
+8,200
| +91% | +$308K |
2026 Q1
1 quarter
|
|
3995
Qiagen
QGEN
$10.1B
| $560K | ﹤0.01% |
14,317
-28,121
| -66% | -$1.04M |
2023 Q4
10 quarters
|
|
3996
PUT
nVent Electric
NVT
$22.6B
| $560K | ﹤0.01% |
3,300
+300
| +10% | +$46.8K |
2026 Q1
1 quarter
|
|
3997
Ardent Health
ARDT
$1.71B
| $559K | ﹤0.01% |
56,848
-189,459
| -77% | -$1.8M |
2025 Q4
2 quarters
|
|
3998
PUT
BHP
BHP
$208B
| $558K | ﹤0.01% |
+6,700
| New | +$556K |
2026 Q2
0 quarters
|
|
3999
ProKidney
PROK
$301M
| $557K | ﹤0.01% |
273,259
-73,123
| -21% | -$134K |
2025 Q2
4 quarters
|
|
4000
CALL
Digital Realty Trust
DLR
$65B
| $557K | ﹤0.01% |
+3,100
| New | +$594K |
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.