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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 | |
|---|---|---|---|---|---|---|---|
3551
Amanat Acquisition Corp
AMAN
$100M
| $980K | ﹤0.01% |
+96,479
| New | +$974K |
2026 Q2
0 quarters
|
|
3552
GAMCO Global Gold, Natural Resources & Income Trust
GGN
$817M
| $980K | ﹤0.01% |
202,518
| – | – |
2026 Q1
1 quarter
|
|
3553
Constellation Energy
CEG
$95.8B
| $980K | ﹤0.01% |
+3,946
| New | +$1.11M |
2026 Q2
0 quarters
|
|
3554
PUT
MKS Inc
MKSI
$14.6B
| $979K | ﹤0.01% |
+2,200
| New | +$688K |
2026 Q2
0 quarters
|
|
3555
Latham Group
SWIM
$749M
| $977K | ﹤0.01% |
151,073
-14,541
| -9% | -$81.7K |
2025 Q4
2 quarters
|
|
3556
PUT
BridgeBio Pharma
BBIO
$13.4B
| $976K | ﹤0.01% |
+13,100
| New | +$918K |
2026 Q2
0 quarters
|
|
3557
PUT
On Holding
ONON
$11.5B
| $974K | ﹤0.01% |
27,500
+500
| +2% | +$18.3K |
2025 Q4
2 quarters
|
|
3558
Suncrete Inc
RMIX
$708M
| $973K | ﹤0.01% |
+43,201
| New | +$746K |
2026 Q2
0 quarters
|
|
3559
ARK Innovation ETF
ARKK
$6.47B
| $973K | ﹤0.01% |
+12,039
| New | +$921K |
2026 Q2
0 quarters
|
|
3560
SR Bancorp
SRBK
$136M
| $970K | ﹤0.01% |
49,284
+2,177
| +5% | +$40.2K |
2025 Q3
3 quarters
|
|
3561
CALL
BorgWarner
BWA
$11.8B
| $969K | ﹤0.01% |
+14,600
| New | +$925K |
2026 Q2
0 quarters
|
|
3562
American Public Education
APEI
$873M
| $968K | ﹤0.01% |
18,019
+8,419
| +88% | +$463K |
2026 Q1
1 quarter
|
|
3563
RF Industries
RFIL
$79.4M
| $966K | ﹤0.01% |
45,562
-49,170
| -52% | -$795K |
2025 Q3
3 quarters
|
|
3564
Superior Group of Companies
SGC
$206M
| $966K | ﹤0.01% |
73,638
+22,065
| +43% | +$265K |
2024 Q2
8 quarters
|
|
3565
CALL
MP Materials
MP
$7.05B
| $963K | ﹤0.01% |
17,200
-31,500
| -65% | -$1.92M |
2025 Q3
3 quarters
|
|
3566
CALL
Texas Pacific Land
TPL
$23.8B
| $963K | ﹤0.01% |
2,200
-1,600
| -42% | -$649K |
2026 Q1
1 quarter
|
|
3567
CALL
Walmart Inc
WMT
$937B
| $963K | ﹤0.01% |
8,500
-33,500
| -80% | -$4.16M |
2025 Q3
3 quarters
|
|
3568
PUT
HSBC
HSBC
$322B
| $960K | ﹤0.01% |
+10,100
| New | +$922K |
2026 Q2
0 quarters
|
|
3569
EOG Resources
EOG
$82.6B
| $960K | ﹤0.01% |
7,400
+3,227
| +77% | +$440K |
2026 Q1
1 quarter
|
|
3570
CALL
Emerson Electric
EMR
$91.3B
| $959K | ﹤0.01% |
6,700
-200
| -3% | -$28.2K |
2025 Q4
2 quarters
|
|
3571
Block Inc
XYZ
$47.6B
| $956K | ﹤0.01% |
12,577
-55,823
| -82% | -$3.92M |
2023 Q2
12 quarters
|
|
3572
Harrow
HROW
$1.06B
| $955K | ﹤0.01% |
+22,476
| New | +$836K |
2026 Q2
0 quarters
|
|
3573
DELISTED
Catalyst Pharmaceutical
CPRX
| $954K | ﹤0.01% |
+30,354
| New | +$896K |
2026 Q2
0 quarters
|
|
3574
Beyond Meat
BYND
$117M
| $954K | ﹤0.01% |
42,388
-7,504
| -15% | -$175K |
2025 Q4
2 quarters
|
|
3575
PUT
Royal Caribbean
RCL
$78B
| $953K | ﹤0.01% |
+3,000
| New | +$839K |
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.