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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 | |
|---|---|---|---|---|---|---|---|
4576
PUT
Oscar Health
OSCR
$9.9B
| $242K | ﹤0.01% |
8,500
-19,300
| -69% | -$416K |
2026 Q1
1 quarter
|
|
4577
Hamilton Beach Brands
HBB
$457M
| $242K | ﹤0.01% |
+10,496
| New | +$209K |
2026 Q2
0 quarters
|
|
4578
Nuveen Growth Opportunities ETF
NUGO
$2.42B
| $241K | ﹤0.01% |
5,571
-4,029
| -42% | -$168K |
2026 Q1
1 quarter
|
|
4579
CALL
Parsons
PSN
$4.71B
| $241K | ﹤0.01% |
+4,600
| New | +$248K |
2026 Q2
0 quarters
|
|
4580
PUT
Levi Strauss
LEVI
$7.88B
| $241K | ﹤0.01% |
+9,700
| New | +$219K |
2026 Q2
0 quarters
|
|
4581
PUT
TD Synnex
SNX
$20B
| $241K | ﹤0.01% |
+900
| New | +$217K |
2026 Q2
0 quarters
|
|
4582
James River Group Holdings
JRVR
$175M
| $240K | ﹤0.01% |
54,565
-309,634
| -85% | -$1.52M |
2023 Q1
13 quarters
|
|
4583
CALL
Teekay Tankers
TNK
$3.28B
| $240K | ﹤0.01% |
+3,700
| New | +$279K |
2026 Q2
0 quarters
|
|
4584
CALL
Iron Mountain
IRM
$33.2B
| $240K | ﹤0.01% |
1,900
-2,100
| -53% | -$257K |
2026 Q1
1 quarter
|
|
4585
Invesco S&P SmallCap Consumer Staples ETF
PSCC
$34.8M
| $240K | ﹤0.01% |
+6,800
| New | +$226K |
2026 Q2
0 quarters
|
|
4586
Uniti Group
UNIT
$1.32B
| $240K | ﹤0.01% |
+20,888
| New | +$237K |
2026 Q2
0 quarters
|
|
4587
CALL
Robert Half
RHI
$3.35B
| $239K | ﹤0.01% |
+7,800
| New | +$218K |
2026 Q2
0 quarters
|
|
4588
CALL
O'Reilly Automotive
ORLY
$72.1B
| $239K | ﹤0.01% |
2,600
-200
| -7% | -$18.2K |
2026 Q1
1 quarter
|
|
4589
CALL
Jacobs Solutions
J
$16.3B
| $239K | ﹤0.01% |
+1,900
| New | +$234K |
2026 Q2
0 quarters
|
|
|
PBLS
4590
Parabilis Medicines Inc
PBLS
$3.17B
| $239K | ﹤0.01% |
+8,741
| New | +$241K |
2026 Q2
0 quarters
|
|
4591
Ribbon Communications
RBBN
$258M
| $239K | ﹤0.01% |
+102,187
| New | +$270K |
2026 Q2
0 quarters
|
|
4592
CALL
AB InBev
BUD
$163B
| $239K | ﹤0.01% |
+2,900
| New | +$228K |
2026 Q2
0 quarters
|
|
|
DMRA
4593
Damora Therapeutics
DMRA
$1.22B
| $237K | ﹤0.01% |
+9,118
| New | +$221K |
2026 Q2
0 quarters
|
|
4594
JD.com
JD
$36.2B
| $237K | ﹤0.01% |
+9,305
| New | +$274K |
2026 Q2
0 quarters
|
|
4595
Innovex International
INVX
$1.95B
| $237K | ﹤0.01% |
+9,559
| New | +$260K |
2026 Q2
0 quarters
|
|
4596
Spok Holdings
SPOK
$219M
| $237K | ﹤0.01% |
23,150
+3,250
| +16% | +$35.4K |
2025 Q1
5 quarters
|
|
4597
CALL
MetLife
MET
$63.9B
| $237K | ﹤0.01% |
+2,800
| New | +$226K |
2026 Q2
0 quarters
|
|
4598
PUT
American Water Works
AWK
$26.4B
| $237K | ﹤0.01% |
1,800
-1,200
| -40% | -$154K |
2026 Q1
1 quarter
|
|
4599
CALL
e.l.f. Beauty
ELF
$6.68B
| $237K | ﹤0.01% |
3,200
-13,700
| -81% | -$833K |
2025 Q4
2 quarters
|
|
4600
Strive Inc
ASST
$2.57B
| $236K | ﹤0.01% |
+21,652
| New | +$320K |
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.