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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 | |
|---|---|---|---|---|---|---|---|
2126
PUT
Intuitive Surgical
ISRG
$151B
| $4.73M | ﹤0.01% |
11,900
+6,800
| +133% | +$2.97M |
2026 Q1
1 quarter
|
|
2127
Carlyle Secured Lending
CGBD
$694M
| $4.73M | ﹤0.01% |
448,847
-182,071
| -29% | -$2.03M |
2018 Q4
30 quarters
|
|
2128
Gesher Acquisition Corp. II Class A Ordinary Shares
GSHR
| $4.73M | ﹤0.01% |
453,124
| – | – |
2025 Q2
4 quarters
|
|
2129
Collective Acquisition Corp
CCAQ
| $4.73M | ﹤0.01% |
453,124
| – | – |
2025 Q2
4 quarters
|
|
2130
MOZAYYX Acquisition Corp
MZYX
$375M
| $4.72M | ﹤0.01% |
+473,062
| New | +$4.69M |
2026 Q2
0 quarters
|
|
|
AAC.U
2131
Ares Acquisition Corporation III Units
AAC.U
| $4.71M | ﹤0.01% |
+468,984
| New | +$4.71M |
2026 Q2
0 quarters
|
|
2132
CALL
SLB Ltd
SLB
$75.8B
| $4.7M | ﹤0.01% |
101,200
-38,100
| -27% | -$2.04M |
2025 Q3
3 quarters
|
|
2133
Aldabra 4 Liquidity Opportunity Vehicle
ALOV
$375M
| $4.7M | ﹤0.01% |
473,062
| – | – |
2026 Q1
1 quarter
|
|
2134
United Bankshares
UBSI
$6.42B
| $4.69M | ﹤0.01% |
+102,412
| New | +$4.48M |
2026 Q2
0 quarters
|
|
2135
Old Second Bancorp
OSBC
$1.27B
| $4.68M | ﹤0.01% |
200,819
+133,462
| +198% | +$2.85M |
2021 Q1
21 quarters
|
|
2136
Oaktree Acquisition Corp III Life Sciences
OACC
$263M
| $4.68M | ﹤0.01% |
437,500
| – | – |
2024 Q4
6 quarters
|
|
2137
Alcoa
AA
$10.7B
| $4.68M | ﹤0.01% |
89,759
-98,543
| -52% | -$6.6M |
2018 Q4
30 quarters
|
|
2138
Ciena
CIEN
$51.2B
| $4.66M | ﹤0.01% |
9,500
+6,014
| +173% | +$3.07M |
2022 Q4
14 quarters
|
|
2139
Silvaco Group
SVCO
$226M
| $4.65M | ﹤0.01% |
337,172
+295,239
| +704% | +$3.07M |
2026 Q1
1 quarter
|
|
2140
First Business Financial Services
FBIZ
$593M
| $4.65M | ﹤0.01% |
73,566
+41,870
| +132% | +$2.42M |
2023 Q4
10 quarters
|
|
2141
Atrium Therapeutics
RNA
$137M
| $4.65M | ﹤0.01% |
345,481
+166,921
| +93% | +$2.18M |
2026 Q1
1 quarter
|
|
2142
Tompkins Financial
TMP
$1.42B
| $4.64M | ﹤0.01% |
49,109
+24,515
| +100% | +$2.11M |
2021 Q3
19 quarters
|
|
2143
Paysign
PAYS
$882M
| $4.62M | ﹤0.01% |
564,238
+28,576
| +5% | +$189K |
2024 Q2
8 quarters
|
|
2144
DELISTED
Clear Channel Outdoor Holdings
CCO
| $4.62M | ﹤0.01% |
1,907,187
-315,158
| -14% | -$755K |
2025 Q3
3 quarters
|
|
2145
DELISTED
Leggett & Platt
LEG
| $4.58M | ﹤0.01% |
391,464
-1,587,907
| -80% | -$16.7M |
2024 Q2
8 quarters
|
|
2146
Fortress Value Acquisition Corp V
FVAV
$365M
| $4.58M | ﹤0.01% |
453,124
| – | – |
2026 Q1
1 quarter
|
|
2147
Callaway Golf Company
CALY
$2.51B
| $4.58M | ﹤0.01% |
243,518
+181,718
| +294% | +$2.85M |
2026 Q1
1 quarter
|
|
|
CAES
2148
Cantor Equity Partners VII
CAES
$318M
| $4.57M | ﹤0.01% |
+453,124
| New | +$4.57M |
2026 Q2
0 quarters
|
|
2149
National Presto Industries
NPK
$1.07B
| $4.57M | ﹤0.01% |
36,552
+30,483
| +502% | +$4.13M |
2024 Q3
7 quarters
|
|
2150
Toast
TOST
$18.8B
| $4.57M | ﹤0.01% |
164,179
-667,685
| -80% | -$17.4M |
2023 Q2
12 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.