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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 | |
|---|---|---|---|---|---|---|---|
4426
CALL
Public Service Enterprise Group
PEG
$35B
| $308K | ﹤0.01% |
+3,800
| New | +$304K |
2026 Q2
0 quarters
|
|
4427
Pearson
PSO
$10.9B
| $308K | ﹤0.01% |
19,400
+600
| +3% | +$8.87K |
2026 Q1
1 quarter
|
|
4428
San Juan Basin Royalty Trust
SJT
$172M
| $307K | ﹤0.01% |
95,656
+41,816
| +78% | +$168K |
2024 Q2
8 quarters
|
|
4429
CALL
Pentair
PNR
$8.42B
| $307K | ﹤0.01% |
4,000
+300
| +8% | +$23.7K |
2026 Q1
1 quarter
|
|
4430
CALL
Constellation Brands
STZ
$22.2B
| $306K | ﹤0.01% |
2,200
+200
| +10% | +$29.7K |
2025 Q4
2 quarters
|
|
4431
HawkEye 360 Inc
HAWK
$1.19B
| $306K | ﹤0.01% |
+15,112
| New | +$418K |
2026 Q2
0 quarters
|
|
4432
Universal Electronics
UEIC
$70.4M
| $305K | ﹤0.01% |
64,000
-100
| -0.2% | -$416 |
2023 Q1
13 quarters
|
|
4433
PUT
Verisk Analytics
VRSK
$24.6B
| $305K | ﹤0.01% |
+1,700
| New | +$299K |
2026 Q2
0 quarters
|
|
4434
POSCO
PKX
$17.4B
| $305K | ﹤0.01% |
5,937
-4,155
| -41% | -$285K |
2024 Q4
6 quarters
|
|
4435
Invesco Biotechnology & Genome ETF
PBE
$420M
| $305K | ﹤0.01% |
+3,400
| New | +$280K |
2026 Q2
0 quarters
|
|
4436
QuidelOrtho
QDEL
$875M
| $305K | ﹤0.01% |
+17,402
| New | +$230K |
2026 Q2
0 quarters
|
|
4437
CALL
Roper Technologies
ROP
$37.9B
| $305K | ﹤0.01% |
+900
| New | +$307K |
2026 Q2
0 quarters
|
|
4438
DELISTED
TruBridge
TBRG
| $304K | ﹤0.01% |
11,600
-8,166
| -41% | -$200K |
2023 Q1
13 quarters
|
|
4439
PUT
Robert Half
RHI
$3.36B
| $304K | ﹤0.01% |
+9,900
| New | +$277K |
2026 Q2
0 quarters
|
|
4440
Madrigal Pharmaceuticals
MDGL
$10.3B
| $304K | ﹤0.01% |
+566
| New | +$290K |
2026 Q2
0 quarters
|
|
4441
ALPS Active REIT ETF
REIT
$53.1M
| $304K | ﹤0.01% |
10,000
-1,500
| -13% | -$44.5K |
2025 Q4
2 quarters
|
|
4442
Zumiez
ZUMZ
$218M
| $303K | ﹤0.01% |
17,040
+1,540
| +10% | +$34.4K |
2026 Q1
1 quarter
|
|
4443
CALL
Oscar Health
OSCR
$10B
| $302K | ﹤0.01% |
10,600
-20,900
| -66% | -$450K |
2026 Q1
1 quarter
|
|
4444
Agenus
AGEN
$279M
| $302K | ﹤0.01% |
98,685
-72,237
| -42% | -$259K |
2025 Q3
3 quarters
|
|
4445
Genius Sports
GENI
$1.76B
| $301K | ﹤0.01% |
+49,653
| New | +$257K |
2026 Q2
0 quarters
|
|
4446
PUT
Otis Worldwide
OTIS
$27B
| $301K | ﹤0.01% |
4,200
-700
| -14% | -$52.3K |
2026 Q1
1 quarter
|
|
4447
Opera Ltd
OPRA
$1.57B
| $299K | ﹤0.01% |
15,100
-5,800
| -28% | -$102K |
2026 Q1
1 quarter
|
|
4448
CALL
Union Pacific
UNP
$171B
| $299K | ﹤0.01% |
+1,100
| New | +$289K |
2026 Q2
0 quarters
|
|
4449
CALL
Bitdeer Technologies
BTDR
$2.09B
| $298K | ﹤0.01% |
18,800
-4,200
| -18% | -$60.3K |
2025 Q4
2 quarters
|
|
4450
CALL
TechnipFMC
FTI
$27.4B
| $298K | ﹤0.01% |
4,500
+1,300
| +41% | +$92K |
2026 Q1
1 quarter
|
|
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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.