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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 | |
|---|---|---|---|---|---|---|---|
4551
CALL
NOV
NOV
$6.73B
| $254K | ﹤0.01% |
+13,700
| New | +$273K |
2026 Q2
0 quarters
|
|
4552
Actinium Pharmaceuticals
ATNM
$46.2M
| $254K | ﹤0.01% |
259,179
-77,989
| -23% | -$90.1K |
2025 Q2
4 quarters
|
|
4553
PUT
Alexandria Real Estate Equities
ARE
$7.14B
| $254K | ﹤0.01% |
+4,800
| New | +$230K |
2026 Q2
0 quarters
|
|
4554
Timberland Bancorp
TSBK
$359M
| $254K | ﹤0.01% |
+5,659
| New | +$234K |
2026 Q2
0 quarters
|
|
4555
Pyxis Oncology
PYXS
$156M
| $253K | ﹤0.01% |
83,961
+10,661
| +15% | +$20.4K |
2025 Q3
3 quarters
|
|
4556
American Battery Technology Co
ABAT
$210M
| $252K | ﹤0.01% |
88,897
-118,744
| -57% | -$380K |
2024 Q1
9 quarters
|
|
4557
CALL
Alaska Air
ALK
$3.9B
| $251K | ﹤0.01% |
+4,800
| New | +$205K |
2026 Q2
0 quarters
|
|
4558
PUT
Unum
UNM
$14.8B
| $250K | ﹤0.01% |
+2,800
| New | +$232K |
2026 Q2
0 quarters
|
|
4559
Verrica Pharmaceuticals
VRCA
$59.1M
| $250K | ﹤0.01% |
40,825
-9,837
| -19% | -$61.3K |
2025 Q4
2 quarters
|
|
4560
PUT
Welltower
WELL
$172B
| $250K | ﹤0.01% |
1,100
-1,500
| -58% | -$317K |
2026 Q1
1 quarter
|
|
4561
Coastal Financial
CCB
$658M
| $249K | ﹤0.01% |
3,213
-587
| -15% | -$44.1K |
2021 Q4
18 quarters
|
|
4562
CALL
Pony AI Inc
PONY
$2.33B
| $248K | ﹤0.01% |
+35,700
| New | +$331K |
2026 Q2
0 quarters
|
|
4563
CALL
Peabody Energy
BTU
$2.76B
| $247K | ﹤0.01% |
10,700
-22,300
| -68% | -$593K |
2025 Q4
2 quarters
|
|
4564
PUT
Harley-Davidson
HOG
$2.83B
| $247K | ﹤0.01% |
+10,100
| New | +$243K |
2026 Q2
0 quarters
|
|
4565
UNIFI
UFI
$102M
| $246K | ﹤0.01% |
51,776
-700
| -1% | -$2.78K |
2026 Q1
1 quarter
|
|
4566
SoundThinking
SSTI
$112M
| $245K | ﹤0.01% |
27,127
-4,762
| -15% | -$34K |
2024 Q1
9 quarters
|
|
4567
CALL
LKQ Corp
LKQ
$5.52B
| $245K | ﹤0.01% |
9,300
+1,100
| +13% | +$30.6K |
2026 Q1
1 quarter
|
|
4568
CALL
DaVita
DVA
$12.1B
| $245K | ﹤0.01% |
1,100
-600
| -35% | -$109K |
2026 Q1
1 quarter
|
|
4569
AC Immune
ACIU
$247M
| $245K | ﹤0.01% |
102,825
+63,734
| +163% | +$176K |
2025 Q2
4 quarters
|
|
|
4570
CALL
Harley-Davidson
HOG
$2.83B
| $245K | ﹤0.01% |
+10,000
| New | +$240K |
2026 Q2
0 quarters
|
|
4571
Sunshine Silver Mining & Refining Company
SSMR
$1.74B
| $245K | ﹤0.01% |
+18,500
| New | +$262K |
2026 Q2
0 quarters
|
|
4572
iShares Core S&P US Growth ETF
IUSG
$33.7B
| $245K | ﹤0.01% |
1,300
-237,700
| -99% | -$42.9M |
2026 Q1
1 quarter
|
|
4573
High Templar Tech Ltd
HTT
$314M
| $244K | ﹤0.01% |
95,321
-181,513
| -66% | -$473K |
2025 Q4
2 quarters
|
|
4574
Mettler-Toledo International
MTD
$32.7B
| $244K | ﹤0.01% |
191
-1,709
| -90% | -$2.06M |
2026 Q1
1 quarter
|
|
4575
Stellus Capital Investment Corp
SCM
$198M
| $243K | ﹤0.01% |
28,812
-168,434
| -85% | -$1.54M |
2020 Q2
24 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.