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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 | |
|---|---|---|---|---|---|---|---|
2026
Prelude Therapeutics
PRLD
$291M
| $5.29M | ﹤0.01% |
993,369
+69,743
| +8% | +$304K |
2021 Q4
18 quarters
|
|
2027
Vanguard S&P 500 Growth ETF
VOOG
$27.6B
| $5.29M | ﹤0.01% |
64,080
-1,314,840
| -95% | -$104M |
2026 Q1
1 quarter
|
|
2028
CALL
Phillips 66
PSX
$116B
| $5.29M | ﹤0.01% |
31,300
+21,700
| +226% | +$3.74M |
2025 Q3
3 quarters
|
|
2029
Forestar Group
FOR
$1.29B
| $5.29M | ﹤0.01% |
167,119
-13,322
| -7% | -$366K |
2019 Q4
26 quarters
|
|
2030
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$14.2B
| $5.27M | ﹤0.01% |
58,100
-15,800
| -21% | -$1.39M |
2023 Q2
12 quarters
|
|
2031
Vanguard Morningstar Mega Cap Growth ETF
MGK
$34.5B
| $5.27M | ﹤0.01% |
59,920
-1,214,280
| -95% | -$104M |
2023 Q3
11 quarters
|
|
2032
PUT
SLB Ltd
SLB
$75.8B
| $5.26M | ﹤0.01% |
113,100
-34,700
| -23% | -$1.86M |
2025 Q3
3 quarters
|
|
2033
Itron
ITRI
$3.72B
| $5.25M | ﹤0.01% |
60,728
+46,002
| +312% | +$3.93M |
2025 Q1
5 quarters
|
|
2034
Graf Global Corp
TONT
$155M
| $5.25M | ﹤0.01% |
484,021
-15,979
| -3% | -$173K |
2024 Q3
7 quarters
|
|
2035
PUT
JetBlue
JBLU
$1.11B
| $5.23M | ﹤0.01% |
913,400
+114,000
| +14% | +$581K |
2022 Q2
16 quarters
|
|
2036
Eldorado Gold
EGO
$9.12B
| $5.23M | ﹤0.01% |
168,208
-281,874
| -63% | -$9.18M |
2018 Q4
30 quarters
|
|
2037
Baker Hughes
BKR
$55.6B
| $5.23M | ﹤0.01% |
94,189
+85,328
| +963% | +$5.39M |
2022 Q3
15 quarters
|
|
2038
Canada Goose Holdings
GOOS
$797M
| $5.2M | ﹤0.01% |
546,932
+377,405
| +223% | +$3.98M |
2024 Q3
7 quarters
|
|
2039
Clorox
CLX
$10.3B
| $5.19M | ﹤0.01% |
54,374
-69,576
| -56% | -$6.68M |
2024 Q4
6 quarters
|
|
2040
Avidia Bancorp
AVBC
$410M
| $5.19M | ﹤0.01% |
247,210
+36,088
| +17% | +$720K |
2025 Q3
3 quarters
|
|
2041
inTEST
INTT
$178M
| $5.19M | ﹤0.01% |
285,517
+248,087
| +663% | +$4.2M |
2026 Q1
1 quarter
|
|
2042
dLocal
DLO
$4.46B
| $5.16M | ﹤0.01% |
397,058
-1,055,343
| -73% | -$13.4M |
2022 Q4
14 quarters
|
|
2043
CALL
Corning
GLW
$116B
| $5.16M | ﹤0.01% |
20,200
+1,100
| +6% | +$200K |
2025 Q4
2 quarters
|
|
2044
Medpace
MEDP
$18.5B
| $5.16M | ﹤0.01% |
9,740
-166,817
| -94% | -$77M |
2022 Q4
14 quarters
|
|
2045
iShares ESG Aware MSCI USA ETF
ESGU
$18.1B
| $5.16M | ﹤0.01% |
31,500
-36,300
| -54% | -$5.74M |
2023 Q2
12 quarters
|
|
2046
MediaAlpha
MAX
$610M
| $5.15M | ﹤0.01% |
409,480
+234,191
| +134% | +$2.21M |
2024 Q1
9 quarters
|
|
2047
Tenax Therapeutics
TENX
$61M
| $5.14M | ﹤0.01% |
353,390
+284,802
| +415% | +$3.64M |
2025 Q4
2 quarters
|
|
2048
CALL
Abbott
ABT
$174B
| $5.14M | ﹤0.01% |
56,600
+30,500
| +117% | +$2.78M |
2026 Q1
1 quarter
|
|
2049
State Street SPDR S&P 400 Mid Cap Growth ETF
MDYG
$2.82B
| $5.11M | ﹤0.01% |
+45,600
| New | +$4.83M |
2026 Q2
0 quarters
|
|
2050
iShares US Tech Independence Focused ETF
IETC
$692M
| $5.11M | ﹤0.01% |
47,600
-50,400
| -51% | -$5.25M |
2025 Q1
5 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.