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 | |
|---|---|---|---|---|---|---|
4301
Limbach Holdings
LMB
$512M
| $369K | ﹤0.01% |
4,795
-8,742
| -65% | -$727K |
|
|
CNR
4302
PUT
Core Natural Resources Inc
CNR
$4.72B
| $368K | ﹤0.01% |
4,600
-1,100
| -19% | -$97.5K |
|
4303
CALL
Cencora
COR
$60.7B
| $368K | ﹤0.01% |
1,300
+300
| +30% | +$86.5K |
|
4304
Tonix Pharmaceuticals
TNXP
$215M
| $368K | ﹤0.01% |
+28,812
| New | +$372K |
|
4305
PUT
Entergy
ETR
$48.8B
| $368K | ﹤0.01% |
+3,200
| New | +$361K |
|
|
SRG
4306
Seritage Growth Properties
SRG
$120M
| $367K | ﹤0.01% |
139,697
+5,312
| +4% | +$14K |
|
|
MSB
4307
Mesabi Trust
MSB
$299M
| $367K | ﹤0.01% |
+14,520
| New | +$399K |
|
4308
PUT
Iron Mountain
IRM
$36.3B
| $366K | ﹤0.01% |
2,900
-2,100
| -42% | -$257K |
|
4309
PUT
Consolidated Edison
ED
$39.3B
| $365K | ﹤0.01% |
3,300
+300
| +10% | +$32.6K |
|
4310
Cooper-Standard Automotive
CPS
$498M
| $365K | ﹤0.01% |
13,496
+196
| +1% | +$5.77K |
|
4311
Ranpak Holdings
PACK
$436M
| $365K | ﹤0.01% |
+49,930
| New | +$288K |
|
4312
PUT
AerCap
AER
$23B
| $364K | ﹤0.01% |
+2,500
| New | +$355K |
|
4313
PUT
CBRE Group
CBRE
$44B
| $364K | ﹤0.01% |
2,700
+1,100
| +69% | +$152K |
|
4314
ICL Group
ICL
$7.49B
| $363K | ﹤0.01% |
72,975
+48,975
| +204% | +$279K |
|
|
RACC
4315
Research Alliance Corp III
RACC
$203M
| $363K | ﹤0.01% |
+33,912
| New | +$353K |
|
|
OKLO
4316
CALL
Oklo
OKLO
$7.83B
| $361K | ﹤0.01% |
6,900
-13,000
| -65% | -$811K |
|
4317
iShares MSCI ACWI ETF
ACWI
$33.3B
| $361K | ﹤0.01% |
+2,300
| New | +$351K |
|
4318
Cohen & Co
COHN
$36.6M
| $360K | ﹤0.01% |
26,538
+14,827
| +127% | +$223K |
|
4319
Lifetime Brands
LCUT
$211M
| $360K | ﹤0.01% |
+42,233
| New | +$327K |
|
4320
CALL
Wheaton Precious Metals
WPM
$71.7B
| $359K | ﹤0.01% |
+3,200
| New | +$416K |
|
4321
CALL
Dover
DOV
$27.2B
| $359K | ﹤0.01% |
+1,600
| New | +$349K |
|
4322
CS Disco
LAW
$277M
| $359K | ﹤0.01% |
94,888
+10,034
| +12% | +$38.9K |
|
4323
Sally Beauty Holdings
SBH
$1.55B
| $358K | ﹤0.01% |
25,308
-2,392
| -9% | -$32.3K |
|
4324
CALL
Lemonade
LMND
$4.13B
| $358K | ﹤0.01% |
+5,500
| New | +$322K |
|
|
PR
4325
PUT
Permian Resources
PR
$19.9B
| $357K | ﹤0.01% |
+19,400
| New | +$390K |
|
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.