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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 | |
|---|---|---|---|---|---|---|---|
4626
CALL
Nokia
NOK
$51.4B
| $227K | ﹤0.01% |
+17,100
| New | +$220K |
2026 Q2
0 quarters
|
|
4627
Grupo Supervielle
SUPV
$631M
| $227K | ﹤0.01% |
23,500
-1,000
| -4% | -$9.25K |
2026 Q1
1 quarter
|
|
4628
Clean Energy Fuels
CLNE
$313M
| $227K | ﹤0.01% |
110,600
+20,100
| +22% | +$42.7K |
2026 Q1
1 quarter
|
|
4629
AYTU BioPharma
AYTU
$22.3M
| $226K | ﹤0.01% |
105,326
-16,647
| -14% | -$39.3K |
2025 Q2
4 quarters
|
|
4630
PUT
Cencora
COR
$64.9B
| $226K | ﹤0.01% |
800
-1,000
| -56% | -$288K |
2026 Q1
1 quarter
|
|
4631
Custom Truck One Source
CTOS
$2.08B
| $226K | ﹤0.01% |
19,152
-11,000
| -36% | -$104K |
2024 Q4
6 quarters
|
|
4632
PUT
Polaris
PII
$2.95B
| $226K | ﹤0.01% |
+3,300
| New | +$213K |
2026 Q2
0 quarters
|
|
4633
OMS Energy Technologies
OMSE
$171M
| $226K | ﹤0.01% |
58,510
-2,373
| -4% | -$10.7K |
2025 Q3
3 quarters
|
|
4634
CryoPort
CYRX
$861M
| $225K | ﹤0.01% |
+14,344
| New | +$184K |
2026 Q2
0 quarters
|
|
4635
PUT
Waters Corp
WAT
$42.7B
| $225K | ﹤0.01% |
+600
| New | +$205K |
2026 Q2
0 quarters
|
|
4636
PUT
Global Payments
GPN
$22.3B
| $225K | ﹤0.01% |
+3,100
| New | +$213K |
2026 Q2
0 quarters
|
|
4637
PUT
monday.com
MNDY
$3.96B
| $224K | ﹤0.01% |
3,100
-4,900
| -61% | -$359K |
2026 Q1
1 quarter
|
|
4638
Sight Sciences
SGHT
$453M
| $222K | ﹤0.01% |
40,944
-86,165
| -68% | -$397K |
2025 Q4
2 quarters
|
|
4639
CALL
PNC Financial Services
PNC
$86.3B
| $222K | ﹤0.01% |
+900
| New | +$202K |
2026 Q2
0 quarters
|
|
4640
CALL
Asbury Automotive
ABG
$3.05B
| $221K | ﹤0.01% |
+1,100
| New | +$217K |
2026 Q2
0 quarters
|
|
4641
PUT
Pony AI Inc
PONY
$2.19B
| $221K | ﹤0.01% |
+31,800
| New | +$295K |
2026 Q2
0 quarters
|
|
4642
Riverview Bancorp
RVSB
$120M
| $221K | ﹤0.01% |
40,690
-11,700
| -22% | -$64.8K |
2025 Q2
4 quarters
|
|
4643
Eastern Company
EML
$145M
| $221K | ﹤0.01% |
+7,920
| New | +$174K |
2026 Q2
0 quarters
|
|
4644
CALL
Gartner
IT
$13.1B
| $220K | ﹤0.01% |
+1,700
| New | +$256K |
2026 Q2
0 quarters
|
|
|
4645
PUT
Gartner
IT
$13.1B
| $220K | ﹤0.01% |
+1,700
| New | +$256K |
2026 Q2
0 quarters
|
|
4646
GrowGeneration
GRWG
$82.5M
| $220K | ﹤0.01% |
148,751
+43,798
| +42% | +$62K |
2025 Q3
3 quarters
|
|
4647
Grace Therapeutics
GRCE
$39.3M
| $220K | ﹤0.01% |
+96,890
| New | +$268K |
2026 Q2
0 quarters
|
|
4648
Avalyn Pharma
AVLN
$1.04B
| $220K | ﹤0.01% |
+6,675
| New | +$193K |
2026 Q2
0 quarters
|
|
4649
PUT
Ford
F
$48.6B
| $220K | ﹤0.01% |
+15,800
| New | +$213K |
2026 Q2
0 quarters
|
|
4650
CALL
Annaly Capital Management
NLY
$13.4B
| $219K | ﹤0.01% |
9,800
-3,300
| -25% | -$72.9K |
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.