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 | |
|---|---|---|---|---|---|---|
3376
Gossamer Bio
GOSS
$75.6M
| $1.22M | ﹤0.01% |
7,432,001
+2,651,150
| +55% | +$740K |
|
3377
Taylor Devices
TAYD
$189M
| $1.22M | ﹤0.01% |
20,776
+14,911
| +254% | +$807K |
|
3378
Regency Centers
REG
$13.9B
| $1.22M | ﹤0.01% |
15,281
+5,799
| +61% | +$455K |
|
3379
Teladoc Health
TDOC
$1.16B
| $1.22M | ﹤0.01% |
143,543
+4,545
| +3% | +$30.2K |
|
3380
PUT
Kinder Morgan
KMI
$69B
| $1.21M | ﹤0.01% |
38,000
-14,700
| -28% | -$474K |
|
3381
CALL
First Majestic Silver
AG
$10.4B
| $1.21M | ﹤0.01% |
71,500
+58,500
| +450% | +$1.16M |
|
3382
Invesco Dorsey Wright SmallCap Momentum ETF
DWAS
$434M
| $1.21M | ﹤0.01% |
+9,500
| New | +$1.08M |
|
3383
PUT
Watsco Inc
WSO
$12.9B
| $1.21M | ﹤0.01% |
2,900
+1,900
| +190% | +$764K |
|
3384
PUT
Performance Food Group
PFGC
$16.5B
| $1.21M | ﹤0.01% |
10,800
-300
| -3% | -$28.6K |
|
3385
Palomar
PLMR
$3.42B
| $1.21M | ﹤0.01% |
9,546
-1,628
| -15% | -$192K |
|
3386
PUT
Equifax
EFX
$22.6B
| $1.21M | ﹤0.01% |
+7,600
| New | +$1.3M |
|
3387
Atlantic Union Bankshares
AUB
$5.88B
| $1.21M | ﹤0.01% |
28,510
-101,818
| -78% | -$3.89M |
|
3388
PUT
Carlyle Group
CG
$17.6B
| $1.2M | ﹤0.01% |
+28,600
| New | +$1.34M |
|
3389
PUT
Waste Management
WM
$89.6B
| $1.2M | ﹤0.01% |
5,400
-600
| -10% | -$133K |
|
|
AVNS
3390
DELISTED
Avanos Medical
AVNS
| $1.2M | ﹤0.01% |
48,288
-40,861
| -46% | -$957K |
|
3391
Orion Group Holdings
ORN
$375M
| $1.2M | ﹤0.01% |
71,341
+19,383
| +37% | +$268K |
|
3392
Highwoods Properties
HIW
$3.46B
| $1.2M | ﹤0.01% |
39,776
+20,576
| +107% | +$532K |
|
3393
Vanguard Morningstar Value ETF
VTV
$193B
| $1.2M | ﹤0.01% |
+5,500
| New | +$1.15M |
|
3394
SFL Corp
SFL
$1.65B
| $1.2M | ﹤0.01% |
117,470
+55,170
| +89% | +$626K |
|
3395
CALL
Chubb
CB
$132B
| $1.19M | ﹤0.01% |
+3,500
| New | +$1.14M |
|
3396
Helios Technologies
HLIO
$2.51B
| $1.19M | ﹤0.01% |
13,325
+888
| +7% | +$68.2K |
|
3397
PUT
Shell
SHEL
$257B
| $1.19M | ﹤0.01% |
15,300
+11,300
| +283% | +$975K |
|
3398
Third Coast Bancshares
TCBX
$758M
| $1.18M | ﹤0.01% |
29,331
-7,389
| -20% | -$288K |
|
3399
PUT
Pfizer
PFE
$160B
| $1.18M | ﹤0.01% |
49,100
-223,700
| -82% | -$5.85M |
|
|
TEM
3400
PUT
Tempus AI
TEM
$13.1B
| $1.18M | ﹤0.01% |
20,400
-88,300
| -81% | -$4.43M |
|
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.