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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 | |
|---|---|---|---|---|---|---|---|
4901
Namib Minerals
NAMM
$54.2M
| $22.4K | ﹤0.01% |
+11,909
| New | +$22.5K |
2026 Q2
0 quarters
|
|
4902
Phio Pharmaceuticals
PHIO
$10.1M
| $22K | ﹤0.01% |
21,501
-10,994
| -34% | -$12.5K |
2025 Q4
2 quarters
|
|
4903
Alset
AEI
$24.4M
| $21.2K | ﹤0.01% |
14,744
-7,230
| -33% | -$11.5K |
2025 Q3
3 quarters
|
|
4904
BT Brands
BTBD
$10.1M
| $21.1K | ﹤0.01% |
19,699
+8,359
| +74% | +$12.1K |
2025 Q4
2 quarters
|
|
4905
Dragonfly Energy
DFLI
$5.19M
| $20.9K | ﹤0.01% |
+1,330
| New | +$21K |
2026 Q2
0 quarters
|
|
4906
Tuya Inc
TUYA
$1.01B
| $19.9K | ﹤0.01% |
+11,300
| New | +$24.6K |
2026 Q2
0 quarters
|
|
4907
Hour Loop
HOUR
$62.3M
| $19.2K | ﹤0.01% |
10,451
-22,000
| -68% | -$44.5K |
2025 Q3
3 quarters
|
|
4908
Educational Development Corp
EDUC
$8.87M
| $19.1K | ﹤0.01% |
12,652
| – | – |
2025 Q4
2 quarters
|
|
4909
MicroCloud Hologram
HOLO
$27M
| $18.7K | ﹤0.01% |
+12,153
| New | +$22.4K |
2026 Q2
0 quarters
|
|
4910
enCore Energy
EU
$161M
| $18.5K | ﹤0.01% |
14,100
-605,766
| -98% | -$1.02M |
2025 Q3
3 quarters
|
|
4911
MediciNova
MNOV
$69.9M
| $17.9K | ﹤0.01% |
13,526
-16,283
| -55% | -$22.3K |
2025 Q4
2 quarters
|
|
|
OPNW
4912
OpenWorld, Inc. Common Stock
OPNW
$35.7M
| $16.6K | ﹤0.01% |
2,710
-1,353
| -33% | -$10K |
2025 Q2
4 quarters
|
|
4913
New Concept Energy
GBR
$3.68M
| $16.6K | ﹤0.01% |
+24,011
| New | +$18.5K |
2026 Q2
0 quarters
|
|
4914
Quest Resource Holding
QRHC
$24M
| $16.1K | ﹤0.01% |
12,801
-3,600
| -22% | -$4.33K |
2025 Q4
2 quarters
|
|
4915
Huize Holding Ltd
HUIZ
$17.5M
| $14.5K | ﹤0.01% |
13,031
-10,283
| -44% | -$15.5K |
2025 Q4
2 quarters
|
|
4916
Context Therapeutics
CNTX
$22.4M
| $14.4K | ﹤0.01% |
+25,941
| New | +$52.6K |
2026 Q2
0 quarters
|
|
|
RBNE
4917
Robin Energy Ltd
RBNE
$1.04M
| $13.9K | ﹤0.01% |
+1,374
| New | +$27.9K |
2026 Q2
0 quarters
|
|
4918
Magic Empire Global Ltd
MEGL
$50.3M
| $13.4K | ﹤0.01% |
10,571
| – | – |
2025 Q4
2 quarters
|
|
4919
Stablecoin Development Corp
SDEV
$44.6M
| $13K | ﹤0.01% |
12,396
-12,399
| -50% | -$17.1K |
2026 Q1
1 quarter
|
|
4920
DELISTED
GETTY IMAGES HLDGS INC A
GETY
| $12.8K | ﹤0.01% |
+14,886
| New | +$12.9K |
2026 Q2
0 quarters
|
|
4921
Big Sky Industrial
BSIN
$74.5M
| $12.1K | ﹤0.01% |
+10,993
| New | +$10.5K |
2026 Q2
0 quarters
|
|
4922
Paramount Gold Nevada
PZG
$91.4M
| $12.1K | ﹤0.01% |
+10,595
| New | +$15.1K |
2026 Q2
0 quarters
|
|
4923
Boqii Holding Ltd
BQ
$4.44M
| $12.1K | ﹤0.01% |
14,720
+2,623
| +22% | +$2.13K |
2026 Q1
1 quarter
|
|
4924
Citius Pharmaceuticals
CTXR
$12.6M
| $10.6K | ﹤0.01% |
17,494
+4,356
| +33% | +$2.95K |
2025 Q2
4 quarters
|
|
4925
Bioceres Crop Solutions
BIOX
$17.6M
| $10.5K | ﹤0.01% |
30,026
-65,286
| -68% | -$30.7K |
2025 Q4
2 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.