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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 | |
|---|---|---|---|---|---|---|---|
4301
Limbach Holdings
LMB
$579M
| $369K | ﹤0.01% |
4,795
-8,742
| -65% | -$727K |
2025 Q2
4 quarters
|
|
4302
PUT
Core Natural Resources Inc
CNR
$4.46B
| $368K | ﹤0.01% |
4,600
-1,100
| -19% | -$97.5K |
2026 Q1
1 quarter
|
|
4303
CALL
Cencora
COR
$64.9B
| $368K | ﹤0.01% |
1,300
+300
| +30% | +$86.5K |
2026 Q1
1 quarter
|
|
4304
Tonix Pharmaceuticals
TNXP
$98.3M
| $368K | ﹤0.01% |
+28,812
| New | +$372K |
2026 Q2
0 quarters
|
|
4305
PUT
Entergy
ETR
$49.6B
| $368K | ﹤0.01% |
+3,200
| New | +$361K |
2026 Q2
0 quarters
|
|
4306
Seritage Growth Properties
SRG
$88.4M
| $367K | ﹤0.01% |
139,697
+5,312
| +4% | +$14K |
2023 Q4
10 quarters
|
|
4307
Mesabi Trust
MSB
$252M
| $367K | ﹤0.01% |
+14,520
| New | +$399K |
2026 Q2
0 quarters
|
|
4308
PUT
Iron Mountain
IRM
$33.2B
| $366K | ﹤0.01% |
2,900
-2,100
| -42% | -$257K |
2026 Q1
1 quarter
|
|
4309
PUT
Consolidated Edison
ED
$40.6B
| $365K | ﹤0.01% |
3,300
+300
| +10% | +$32.6K |
2025 Q4
2 quarters
|
|
4310
Cooper-Standard Automotive
CPS
$362M
| $365K | ﹤0.01% |
13,496
+196
| +1% | +$5.77K |
2025 Q4
2 quarters
|
|
4311
Ranpak Holdings
PACK
$293M
| $365K | ﹤0.01% |
+49,930
| New | +$288K |
2026 Q2
0 quarters
|
|
4312
PUT
AerCap
AER
$22.8B
| $364K | ﹤0.01% |
+2,500
| New | +$355K |
2026 Q2
0 quarters
|
|
4313
PUT
CBRE Group
CBRE
$37.9B
| $364K | ﹤0.01% |
2,700
+1,100
| +69% | +$152K |
2026 Q1
1 quarter
|
|
4314
ICL Group
ICL
$6.3B
| $363K | ﹤0.01% |
72,975
+48,975
| +204% | +$279K |
2026 Q1
1 quarter
|
|
4315
Research Alliance Corp III
RACC
$93.1M
| $363K | ﹤0.01% |
+33,912
| New | +$353K |
2026 Q2
0 quarters
|
|
4316
CALL
Oklo
OKLO
$5.07B
| $361K | ﹤0.01% |
6,900
-13,000
| -65% | -$811K |
2025 Q3
3 quarters
|
|
4317
iShares MSCI ACWI ETF
ACWI
$32.7B
| $361K | ﹤0.01% |
+2,300
| New | +$351K |
2026 Q2
0 quarters
|
|
4318
Cohen & Co
COHN
$31.2M
| $360K | ﹤0.01% |
26,538
+14,827
| +127% | +$223K |
2026 Q1
1 quarter
|
|
4319
Lifetime Brands
LCUT
$185M
| $360K | ﹤0.01% |
+42,233
| New | +$327K |
2026 Q2
0 quarters
|
|
4320
CALL
Wheaton Precious Metals
WPM
$59.9B
| $359K | ﹤0.01% |
+3,200
| New | +$416K |
2026 Q2
0 quarters
|
|
4321
CALL
Dover
DOV
$26.3B
| $359K | ﹤0.01% |
+1,600
| New | +$349K |
2026 Q2
0 quarters
|
|
4322
CS Disco
LAW
$292M
| $359K | ﹤0.01% |
94,888
+10,034
| +12% | +$38.9K |
2025 Q3
3 quarters
|
|
4323
Sally Beauty Holdings
SBH
$1.54B
| $358K | ﹤0.01% |
25,308
-2,392
| -9% | -$32.3K |
2026 Q1
1 quarter
|
|
4324
CALL
Lemonade
LMND
$3.34B
| $358K | ﹤0.01% |
+5,500
| New | +$322K |
2026 Q2
0 quarters
|
|
4325
PUT
Permian Resources
PR
$20.8B
| $357K | ﹤0.01% |
+19,400
| New | +$390K |
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.