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 | |
|---|---|---|---|---|---|---|
3726
Westrock Coffee
WEST
$812M
| $783K | ﹤0.01% |
+96,521
| New | +$693K |
|
3727
PUT
Baxter International
BAX
$13.6B
| $782K | ﹤0.01% |
+36,700
| New | +$684K |
|
3728
American Eagle Outfitters
AEO
$2.71B
| $782K | ﹤0.01% |
45,456
-635,181
| -93% | -$11M |
|
3729
Precigen
PGEN
$2.58B
| $781K | ﹤0.01% |
136,970
+64,170
| +88% | +$277K |
|
3730
Haleon
HLN
$44B
| $780K | ﹤0.01% |
+83,638
| New | +$778K |
|
|
ETW
3731
Eaton Vance Tax-Managed Global Buy-Write Opportunities Fund
ETW
$1.07B
| $780K | ﹤0.01% |
80,946
| – | – |
|
3732
PUT
Steel Dynamics
STLD
$32.8B
| $780K | ﹤0.01% |
+3,400
| New | +$796K |
|
3733
Roivant Sciences
ROIV
$26.2B
| $779K | ﹤0.01% |
+22,000
| New | +$650K |
|
3734
Sierra Bancorp
BSRR
$517M
| $779K | ﹤0.01% |
19,101
-5,517
| -22% | -$208K |
|
3735
Essential Utilities
WTRG
$11.4B
| $778K | ﹤0.01% |
+20,318
| New | +$776K |
|
3736
CALL
3M
MMM
$92.3B
| $777K | ﹤0.01% |
4,800
-19,600
| -80% | -$2.97M |
|
3737
NewMarket
NEU
$8.62B
| $775K | ﹤0.01% |
980
+20
| +2% | +$14.4K |
|
3738
Xperi
XPER
$305M
| $773K | ﹤0.01% |
93,878
+78,478
| +510% | +$568K |
|
3739
PUT
Roblox
RBLX
$27.4B
| $772K | ﹤0.01% |
14,200
-48,500
| -77% | -$2.41M |
|
3740
PUT
Cigna
CI
$73.3B
| $772K | ﹤0.01% |
+2,800
| New | +$791K |
|
3741
Timothy Plan US Large/Mid Cap Core ETF
TPLC
$314M
| $770K | ﹤0.01% |
+15,300
| New | +$745K |
|
3742
National Bankshares
NKSH
$262M
| $769K | ﹤0.01% |
+21,171
| New | +$764K |
|
3743
PUT
Ollie's Bargain Outlet
OLLI
$4.6B
| $769K | ﹤0.01% |
+10,000
| New | +$834K |
|
3744
PUT
Vital Farms
VITL
$454M
| $768K | ﹤0.01% |
66,000
+46,600
| +240% | +$519K |
|
3745
Personalis
PSNL
$1.96B
| $767K | ﹤0.01% |
57,258
-33,453
| -37% | -$272K |
|
3746
PUT
ON Semiconductor
ON
$28.9B
| $766K | ﹤0.01% |
8,100
-45,100
| -85% | -$4.62M |
|
|
ARTV
3747
Artiva Biotherapeutics
ARTV
$534M
| $762K | ﹤0.01% |
78,575
-36,466
| -32% | -$332K |
|
3748
Ferguson
FERG
$46.9B
| $760K | ﹤0.01% |
+3,203
| New | +$773K |
|
|
NVMI
3749
CALL
Nova
NVMI
$12B
| $760K | ﹤0.01% |
+1,400
| New | +$720K |
|
|
NVMI
3750
PUT
Nova
NVMI
$12B
| $760K | ﹤0.01% |
+1,400
| New | +$720K |
|
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.