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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 | |
|---|---|---|---|---|---|---|---|
2051
Stratasys
SSYS
$608M
| $5.11M | ﹤0.01% |
596,677
+564,319
| +1,744% | +$4.94M |
2025 Q2
4 quarters
|
|
2052
Medifast
MED
$135M
| $5.11M | ﹤0.01% |
481,381
+143,223
| +42% | +$1.65M |
2024 Q2
8 quarters
|
|
2053
Ryanair
RYAAY
$28B
| $5.1M | ﹤0.01% |
78,822
-56,196
| -42% | -$3.31M |
2024 Q4
6 quarters
|
|
2054
PUT
Natera
NTRA
$59.6B
| $5.1M | ﹤0.01% |
18,800
+16,200
| +623% | +$3.45M |
2025 Q4
2 quarters
|
|
2055
Solarius Capital Acquisition Corp
SOCA
$244M
| $5.1M | ﹤0.01% |
497,161
| – | – |
2025 Q3
3 quarters
|
|
2056
PUT
Live Nation Entertainment
LYV
$40.6B
| $5.09M | ﹤0.01% |
+27,800
| New | +$4.57M |
2026 Q2
0 quarters
|
|
2057
FTAI Aviation
FTAI
$16.8B
| $5.09M | ﹤0.01% |
18,814
-75,954
| -80% | -$19.1M |
2022 Q4
14 quarters
|
|
2058
iShares Top 20 U.S. Stocks ETF
TOPT
$774M
| $5.08M | ﹤0.01% |
+154,200
| New | +$5M |
2026 Q2
0 quarters
|
|
2059
New Mountain Finance
NMFC
$615M
| $5.07M | ﹤0.01% |
707,346
-129,111
| -15% | -$1.03M |
2017 Q4
34 quarters
|
|
2060
PUT
NRG Energy
NRG
$21B
| $5.07M | ﹤0.01% |
+34,700
| New | +$5M |
2026 Q2
0 quarters
|
|
2061
Shinhan Financial Group
SHG
$32.8B
| $5.06M | ﹤0.01% |
80,016
-156,910
| -66% | -$10.3M |
2024 Q1
9 quarters
|
|
2062
PUT
DoorDash
DASH
$79.9B
| $5.06M | ﹤0.01% |
27,400
-2,600
| -9% | -$430K |
2026 Q1
1 quarter
|
|
2063
Fastenal
FAST
$60.2B
| $5.06M | ﹤0.01% |
105,267
+47,765
| +83% | +$2.17M |
2023 Q4
10 quarters
|
|
2064
Jackson Acquisition Co II
JACS
$320M
| $5.05M | ﹤0.01% |
474,821
| – | – |
2025 Q1
5 quarters
|
|
2065
EPAM Systems
EPAM
$6.91B
| $5.05M | ﹤0.01% |
63,600
-262
| -0.4% | -$27.7K |
2025 Q3
3 quarters
|
|
2066
Aegon
AEG
$12.4B
| $5.04M | ﹤0.01% |
597,288
+64,700
| +12% | +$533K |
2024 Q4
6 quarters
|
|
2067
PUT
Nebius Group N.V.
NBIS
$46.6B
| $5.03M | ﹤0.01% |
18,200
+8,200
| +82% | +$1.62M |
2026 Q1
1 quarter
|
|
2068
Berto Acquisition Corp II Unit
GUACU
$251M
| $5.03M | ﹤0.01% |
+496,624
| New | +$5M |
2026 Q2
0 quarters
|
|
2069
AB InBev
BUD
$162B
| $5.02M | ﹤0.01% |
60,897
+39,703
| +187% | +$3.12M |
2024 Q2
8 quarters
|
|
2070
TAL Education Group
TAL
$5.85B
| $5.01M | ﹤0.01% |
523,987
+12,787
| +3% | +$134K |
2025 Q3
3 quarters
|
|
2071
Amphastar Pharmaceuticals
AMPH
$1.11B
| $5.01M | ﹤0.01% |
248,115
+109,967
| +80% | +$2.22M |
2023 Q2
12 quarters
|
|
2072
Viemed Healthcare
VMD
$371M
| $5M | ﹤0.01% |
438,851
+25,457
| +6% | +$252K |
2022 Q1
17 quarters
|
|
2073
HMH Holding Inc
HMH
$214M
| $5M | ﹤0.01% |
+266,912
| New | +$5.46M |
2026 Q2
0 quarters
|
|
2074
PUT
Arm
ARM
$242B
| $5M | ﹤0.01% |
14,100
-67,500
| -83% | -$17.9M |
2025 Q3
3 quarters
|
|
2075
PUT
Celestica
CLS
$38.4B
| $5M | ﹤0.01% |
13,700
-33,200
| -71% | -$12.5M |
2025 Q3
3 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.