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 | |
|---|---|---|---|---|---|---|
1726
PUT
Phillips 66
PSX
$96.9B
| $7.29M | 0.01% |
43,100
+36,100
| +516% | +$6.21M |
|
1727
Seanergy Maritime Holdings
SHIP
$379M
| $7.28M | 0.01% |
542,398
-14,058
| -3% | -$212K |
|
1728
Invesco High Yield Equity Dividend Achievers ETF
PEY
$1.18B
| $7.27M | 0.01% |
313,700
+55,700
| +22% | +$1.24M |
|
|
OTGA
1729
OTG Acquisition Corp I
OTGA
$302M
| $7.26M | 0.01% |
715,519
| – | – |
|
1730
Altimmune
ALT
$605M
| $7.24M | 0.01% |
2,381,142
-97,758
| -4% | -$292K |
|
1731
CALL
Microsoft
MSFT
$3.59T
| $7.24M | 0.01% |
19,400
-30,600
| -61% | -$12.4M |
|
1732
Certara
CERT
$1.29B
| $7.24M | 0.01% |
1,104,605
+1,041,872
| +1,661% | +$5.87M |
|
1733
Kemper
KMPR
$1.59B
| $7.23M | 0.01% |
268,352
-475,368
| -64% | -$13.8M |
|
1734
PUT
Carvana
CVNA
$76.9B
| $7.23M | 0.01% |
109,800
-128,700
| -54% | -$9.1M |
|
1735
First Trust Nasdaq Oil & Gas ETF
FTXN
$167M
| $7.22M | 0.01% |
+215,996
| New | +$7.78M |
|
1736
Truist Financial
TFC
$61.6B
| $7.21M | 0.01% |
144,813
-2,084,494
| -94% | -$103M |
|
1737
California Resources
CRC
$4.73B
| $7.19M | 0.01% |
136,050
-11,389
| -8% | -$701K |
|
1738
ITT
ITT
$18.6B
| $7.19M | 0.01% |
36,354
-25,213
| -41% | -$5.1M |
|
1739
M&T Bank
MTB
$34.7B
| $7.19M | 0.01% |
30,200
-210,984
| -87% | -$46.1M |
|
1740
FirstCash
FCFS
$9.77B
| $7.19M | 0.01% |
33,219
-120,514
| -78% | -$26.2M |
|
1741
Employers Holdings
EIG
$865M
| $7.18M | 0.01% |
142,147
-48,864
| -26% | -$2.14M |
|
1742
Devon Energy
DVN
$54B
| $7.17M | 0.01% |
173,605
-441,746
| -72% | -$20.5M |
|
1743
Farmers National Banc Corp
FMNB
$930M
| $7.16M | 0.01% |
490,698
+230,362
| +88% | +$3.25M |
|
1744
WEC Energy
WEC
$34.5B
| $7.16M | 0.01% |
61,275
+47,406
| +342% | +$5.41M |
|
1745
Harmony Gold Mining
HMY
$14.7B
| $7.14M | 0.01% |
469,555
-39,886
| -8% | -$663K |
|
1746
Pacific Biosciences
PACB
$420M
| $7.13M | 0.01% |
4,242,599
+732,986
| +21% | +$1.07M |
|
1747
Alphatec Holdings
ATEC
$1.46B
| $7.12M | 0.01% |
823,496
-1,219,347
| -60% | -$11.1M |
|
1748
PUT
Spotify
SPOT
$110B
| $7.12M | 0.01% |
15,500
+9,500
| +158% | +$4.53M |
|
1749
PUT
Amphenol
APH
$194B
| $7.11M | 0.01% |
40,300
+31,300
| +348% | +$4.51M |
|
1750
Magnachip Semiconductor
MX
$121M
| $7.1M | 0.01% |
1,501,438
+929,604
| +163% | +$4.51M |
|
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.