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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
+649.66%
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 | |
|---|---|---|---|---|---|---|---|
2451
Southwest Airlines
LUV
$20.1B
| $3.35M | ﹤0.01% |
65,210
+9,508
| +17% | +$399K |
2022 Q2
16 quarters
|
|
2452
NatWest
NWG
$67.3B
| $3.35M | ﹤0.01% |
190,100
-1,319
| -0.7% | -$21.2K |
2025 Q4
2 quarters
|
|
2453
PROG Holdings
PRG
$1.26B
| $3.34M | ﹤0.01% |
71,740
-30,508
| -30% | -$1.06M |
2022 Q2
16 quarters
|
|
2454
National Grid
NGG
$82.9B
| $3.34M | ﹤0.01% |
40,300
+18,200
| +82% | +$1.55M |
2025 Q3
3 quarters
|
|
|
YICCU
2455
Yorkville International Capital Corp Units
YICCU
$200M
| $3.34M | ﹤0.01% |
+332,291
| New | +$3.34M |
2026 Q2
0 quarters
|
|
2456
Selective Insurance
SIGI
$5.52B
| $3.34M | ﹤0.01% |
34,390
+19,390
| +129% | +$1.68M |
2024 Q3
7 quarters
|
|
2457
Pampa Energía
PAM
$4.13B
| $3.33M | ﹤0.01% |
+40,556
| New | +$3.38M |
2026 Q2
0 quarters
|
|
2458
Ollie's Bargain Outlet
OLLI
$5.44B
| $3.33M | ﹤0.01% |
43,279
-273,420
| -86% | -$22.8M |
2025 Q3
3 quarters
|
|
2459
Yum! Brands
YUM
$41.7B
| $3.32M | ﹤0.01% |
20,797
-700
| -3% | -$108K |
2025 Q1
5 quarters
|
|
2460
PUT
Flex
FLEX
$28.5B
| $3.32M | ﹤0.01% |
20,500
+11,500
| +128% | +$1.39M |
2026 Q1
1 quarter
|
|
2461
Integra LifeSciences
IART
$943M
| $3.32M | ﹤0.01% |
184,955
-27,755
| -13% | -$388K |
2022 Q1
17 quarters
|
|
2462
Voyager Therapeutics
VYGR
$113M
| $3.32M | ﹤0.01% |
948,517
+332,857
| +54% | +$1.26M |
2025 Q3
3 quarters
|
|
2463
KPET Ultra Paceline Corp
KPET
| $3.32M | ﹤0.01% |
+332,291
| New | +$3.33M |
2026 Q2
0 quarters
|
|
2464
Nano Dimension
NNDM
$590M
| $3.31M | ﹤0.01% |
2,285,332
-242,558
| -10% | -$396K |
2024 Q4
6 quarters
|
|
2465
Westlake Corp
WLK
$8.03B
| $3.31M | ﹤0.01% |
+45,357
| New | +$4.43M |
2026 Q2
0 quarters
|
|
2466
Oakmark U.S. Large Cap ETF
OAKM
$1.17B
| $3.31M | ﹤0.01% |
+117,400
| New | +$3.29M |
2026 Q2
0 quarters
|
|
2467
Atlanta Braves Holdings Series B
BATRK
$3.19B
| $3.3M | ﹤0.01% |
+63,520
| New | +$3.12M |
2026 Q2
0 quarters
|
|
2468
CALL
Starbucks
SBUX
$116B
| $3.28M | ﹤0.01% |
32,100
+20,100
| +168% | +$2.02M |
2025 Q4
2 quarters
|
|
2469
CALL
Home Depot
HD
$325B
| $3.28M | ﹤0.01% |
9,300
-6,000
| -39% | -$1.95M |
2025 Q4
2 quarters
|
|
2470
Applied Optoelectronics
AAOI
$5.72B
| $3.28M | ﹤0.01% |
22,113
-319,069
| -94% | -$51.9M |
2023 Q4
10 quarters
|
|
2471
Hall Chadwick Acquisition Corp
HCAC
$296M
| $3.28M | ﹤0.01% |
326,250
| – | – |
2026 Q1
1 quarter
|
|
2472
Organon & Co
OGN
$3.61B
| $3.27M | ﹤0.01% |
241,392
-2,895,628
| -92% | -$34.6M |
2025 Q2
4 quarters
|
|
2473
DELISTED
Crinetics Pharmaceuticals
CRNX
| $3.27M | ﹤0.01% |
87,299
| – | – |
2025 Q2
4 quarters
|
|
2474
Capital Bancorp
CBNK
$672M
| $3.27M | ﹤0.01% |
92,982
+2,103
| +2% | +$67.4K |
2025 Q1
5 quarters
|
|
2475
ChipMOS TECHNOLOGIES
IMOS
$1.93B
| $3.26M | ﹤0.01% |
50,810
+20,589
| +68% | +$1.09M |
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.