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 | |
|---|---|---|---|---|---|---|
3476
PUT
Genuine Parts
GPC
$18.5B
| $1.09M | ﹤0.01% |
+9,200
| New | +$960K |
|
|
TEM
3477
CALL
Tempus AI
TEM
$13.1B
| $1.08M | ﹤0.01% |
18,700
-76,400
| -80% | -$3.83M |
|
3478
Array Technologies
ARRY
$722M
| $1.08M | ﹤0.01% |
145,967
-456,592
| -76% | -$3.64M |
|
3479
Rocket Pharmaceuticals
RCKT
$385M
| $1.08M | ﹤0.01% |
315,761
-781,862
| -71% | -$2.6M |
|
3480
PUT
Cenovus Energy
CVE
$60.7B
| $1.08M | ﹤0.01% |
+43,500
| New | +$1.2M |
|
|
PECE
3481
Peace Acquisition Corp
PECE
$84.1M
| $1.08M | ﹤0.01% |
+108,749
| New | +$1.08M |
|
|
MCAH
3482
Mountain Crest Acquisition 6 Corp
MCAH
$87M
| $1.08M | ﹤0.01% |
+108,749
| New | +$1.08M |
|
3483
CALL
Mastercard
MA
$509B
| $1.08M | ﹤0.01% |
2,100
-900
| -30% | -$449K |
|
3484
Annovis Bio
ANVS
$77.5M
| $1.08M | ﹤0.01% |
579,571
-48,088
| -8% | -$93.5K |
|
3485
CALL
Omnicom Group
OMC
$24B
| $1.08M | ﹤0.01% |
14,800
+10,700
| +261% | +$805K |
|
|
API
3486
Agora
API
$369M
| $1.08M | ﹤0.01% |
270,134
+151,005
| +127% | +$607K |
|
3487
CALL
Axsome Therapeutics
AXSM
$10.9B
| $1.08M | ﹤0.01% |
+4,400
| New | +$954K |
|
3488
CALL
Performance Food Group
PFGC
$16.5B
| $1.07M | ﹤0.01% |
9,600
+3,000
| +45% | +$285K |
|
3489
OSI Systems
OSIS
$3.41B
| $1.07M | ﹤0.01% |
4,900
| – | – |
|
3490
CALL
Waste Management
WM
$89.6B
| $1.07M | ﹤0.01% |
4,800
-400
| -8% | -$89K |
|
3491
First National Corp
FXNC
$281M
| $1.07M | ﹤0.01% |
35,589
+15,788
| +80% | +$448K |
|
3492
CALL
ATI
ATI
$28.2B
| $1.06M | ﹤0.01% |
5,400
+2,100
| +64% | +$356K |
|
3493
CALL
YPF Sociedad Anonima ADS
YPF
$20.1B
| $1.06M | ﹤0.01% |
23,400
-19,200
| -45% | -$901K |
|
3494
PUT
Nextpower Inc
NXT
$13.1B
| $1.06M | ﹤0.01% |
8,900
-17,600
| -66% | -$2.17M |
|
3495
Southern Missouri Bancorp
SMBC
$819M
| $1.06M | ﹤0.01% |
13,905
-30,322
| -69% | -$2.09M |
|
3496
Petrobras
PBR
$123B
| $1.06M | ﹤0.01% |
+65,400
| New | +$1.28M |
|
3497
Kadant
KAI
$3.7B
| $1.05M | ﹤0.01% |
3,357
-3,480
| -51% | -$1.08M |
|
3498
CALL
HCA Healthcare
HCA
$92.9B
| $1.05M | ﹤0.01% |
+2,700
| New | +$1.14M |
|
|
3499
PUT
HCA Healthcare
HCA
$92.9B
| $1.05M | ﹤0.01% |
+2,700
| New | +$1.14M |
|
3500
InterGroup Corp
INTG
$68.8M
| $1.05M | ﹤0.01% |
+21,918
| New | +$831K |
|
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.