John Overdeck Two Sigma Investments
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.
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 |
SNDK
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.71% |
| 2 | Financials | 15.22% |
| 3 | Healthcare | 11.94% |
| 4 | Industrials | 11.55% |
| 5 | Consumer Discretionary | 9.6% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
926
PUT
Lumentum
LITE
$74.5B
| $22.9M | 0.02% |
26,700
+19,700
| +281% | +$17.6M |
|
927
Cheesecake Factory
CAKE
$5.7B
| $22.9M | 0.02% |
287,727
-68,182
| -19% | -$4.42M |
|
|
ARIS
928
Aris Mining
ARIS
$4.3B
| $22.9M | 0.02% |
1,534,616
+255,780
| +20% | +$4.6M |
|
929
QuantumScape Corp
QS
$3.52B
| $22.8M | 0.02% |
3,018,682
-9,561,847
| -76% | -$71.7M |
|
930
M/I Homes
MHO
$3.84B
| $22.7M | 0.02% |
141,141
+46,067
| +48% | +$6.17M |
|
931
American Water Works
AWK
$27.8B
| $22.7M | 0.02% |
172,367
+170,568
| +9,481% | +$21.9M |
|
932
Central Garden & Pet Co Class A
CENTA
$2.4B
| $22.6M | 0.02% |
583,930
+85,261
| +17% | +$2.98M |
|
933
First Horizon
FHN
$11.6B
| $22.6M | 0.02% |
880,206
+752,233
| +588% | +$18.3M |
|
934
Tyler Technologies
TYL
$14.6B
| $22.5M | 0.02% |
77,039
+38,167
| +98% | +$12.1M |
|
935
General Dynamics
GD
$104B
| $22.5M | 0.02% |
63,592
-293,827
| -82% | -$101M |
|
|
ESPR
936
DELISTED
Esperion Therapeutics
ESPR
| $22.5M | 0.02% |
7,126,739
-2,332,040
| -25% | -$6.52M |
|
937
PUT
Bank of America
BAC
$436B
| $22.5M | 0.02% |
394,500
+93,200
| +31% | +$4.96M |
|
938
Cathay General Bancorp
CATY
$4.16B
| $22.5M | 0.02% |
362,195
+232,797
| +180% | +$13.2M |
|
939
Mercury Insurance
MCY
$5.89B
| $22.4M | 0.02% |
210,526
-78,521
| -27% | -$7.73M |
|
940
Strategic Education
STRA
$1.87B
| $22.4M | 0.02% |
292,593
-62,439
| -18% | -$4.94M |
|
941
JPMorgan BetaBuilders Canada ETF
BBCA
$11.4B
| $22.4M | 0.02% |
+225,500
| New | +$22.4M |
|
942
CALL
Astera Labs
ALAB
$48.1B
| $22.4M | 0.02% |
46,300
-62,600
| -57% | -$16.6M |
|
943
BOK Financial
BOKF
$8.54B
| $22.3M | 0.02% |
160,610
-256,523
| -61% | -$33.9M |
|
944
SolarEdge
SEDG
$1.85B
| $22.2M | 0.02% |
380,002
-1,851,897
| -83% | -$97M |
|
945
Service Corp International
SCI
$11.5B
| $22.2M | 0.02% |
292,346
-337,515
| -54% | -$26.4M |
|
946
Kirby Corp
KEX
$7.32B
| $22.2M | 0.02% |
162,998
+25,415
| +18% | +$3.64M |
|
947
Horace Mann Educators
HMN
$2.07B
| $22.1M | 0.02% |
428,417
+1,159
| +0.3% | +$53.8K |
|
948
First Trust NYSE Arca Biotechnology Index Fund
FBT
$2.92B
| $22.1M | 0.02% |
89,200
+45,500
| +104% | +$9.8M |
|
949
PUT
TSMC
TSM
$2.13T
| $22.1M | 0.02% |
46,300
+13,800
| +42% | +$5.6M |
|
950
Rapid7
RPD
$822M
| $22M | 0.02% |
2,718,389
+484,461
| +22% | +$3.21M |
|
Similar funds
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 $4.38B 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 Healthcare.
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.