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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 | |
|---|---|---|---|---|---|---|---|
4776
Duos Technologies
DUOT
$170M
| $130K | ﹤0.01% |
+10,836
| New | +$109K |
2026 Q2
0 quarters
|
|
4777
Accelerant Holdings
ARX
$4.29B
| $130K | ﹤0.01% |
+11,079
| New | +$156K |
2026 Q2
0 quarters
|
|
4778
Eledon Pharmaceuticals
ELDN
$173M
| $130K | ﹤0.01% |
+32,945
| New | +$120K |
2026 Q2
0 quarters
|
|
4779
The Honest Company
HNST
$536M
| $129K | ﹤0.01% |
35,315
+615
| +2% | +$2.07K |
2026 Q1
1 quarter
|
|
4780
Kingsoft Cloud Holdings
KC
$2.54B
| $129K | ﹤0.01% |
+14,227
| New | +$197K |
2026 Q2
0 quarters
|
|
4781
Delcath Systems
DCTH
$489M
| $127K | ﹤0.01% |
+10,054
| New | +$111K |
2026 Q2
0 quarters
|
|
4782
Upland Software
UPLD
$10M
| $125K | ﹤0.01% |
26,790
-14,421
| -35% | -$100K |
2022 Q4
14 quarters
|
|
4783
Copel
ELPC
$10.4B
| $124K | ﹤0.01% |
+10,673
| New | +$130K |
2026 Q2
0 quarters
|
|
4784
Teads Holding Co
TEAD
$39.4M
| $124K | ﹤0.01% |
161,058
-50,381
| -24% | -$49.5K |
2025 Q2
4 quarters
|
|
4785
CALL
Aurora
AUR
$9.7B
| $123K | ﹤0.01% |
+18,000
| New | +$110K |
2026 Q2
0 quarters
|
|
4786
LeonaBio Inc
LONA
$49M
| $122K | ﹤0.01% |
13,276
| – | – |
2025 Q4
2 quarters
|
|
4787
Vivid Seats
SEAT
$32.3M
| $119K | ﹤0.01% |
+18,299
| New | +$140K |
2026 Q2
0 quarters
|
|
4788
PepGen
PEPG
$180M
| $119K | ﹤0.01% |
66,268
-115,437
| -64% | -$188K |
2025 Q1
5 quarters
|
|
4789
Sabesp
SBS
$22B
| $118K | ﹤0.01% |
+20,495
| New | +$124K |
2026 Q2
0 quarters
|
|
4790
Telix Pharmaceuticals
TLX
$3.63B
| $118K | ﹤0.01% |
+10,233
| New | +$104K |
2026 Q2
0 quarters
|
|
4791
ImageneBio Inc
IMA
$45.9M
| $117K | ﹤0.01% |
+19,900
| New | +$112K |
2026 Q2
0 quarters
|
|
4792
Blend Labs
BLND
$213M
| $116K | ﹤0.01% |
68,008
-22,835
| -25% | -$36.4K |
2023 Q4
10 quarters
|
|
4793
Blink Charging
BLNK
$61.4M
| $116K | ﹤0.01% |
181,486
-45,685
| -20% | -$33.1K |
2025 Q2
4 quarters
|
|
4794
Edesa Biotech
EDSA
$24.8M
| $114K | ﹤0.01% |
+14,032
| New | +$127K |
2026 Q2
0 quarters
|
|
4795
Heron Therapeutics
HRTX
$68.5M
| $114K | ﹤0.01% |
266,314
-51,086
| -16% | -$41K |
2024 Q1
9 quarters
|
|
4796
Pulmonx
LUNG
$76.4M
| $113K | ﹤0.01% |
86,575
+17,963
| +26% | +$24.7K |
2022 Q1
17 quarters
|
|
4797
CVD Equipment Corp
CVV
$26.9M
| $112K | ﹤0.01% |
+15,053
| New | +$91.2K |
2026 Q2
0 quarters
|
|
4798
Motorsport Games
MSGM
$25.8M
| $112K | ﹤0.01% |
27,911
-6,950
| -20% | -$29.4K |
2025 Q4
2 quarters
|
|
4799
NRX Pharmaceuticals
NRXP
$113M
| $108K | ﹤0.01% |
+26,429
| New | +$87.3K |
2026 Q2
0 quarters
|
|
4800
Prairie Operating Co
PROP
$38.5M
| $107K | ﹤0.01% |
148,895
+54,176
| +57% | +$58.4K |
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.