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 | |
|---|---|---|---|---|---|---|
2601
Grocery Outlet
GO
$1.15B
| $2.83M | ﹤0.01% |
283,455
+191,969
| +210% | +$1.58M |
|
2602
UWM Holdings
UWMC
$2.25B
| $2.82M | ﹤0.01% |
1,232,215
-6,461,249
| -84% | -$20.1M |
|
2603
Silicom
SILC
$253M
| $2.82M | ﹤0.01% |
58,815
+33,802
| +135% | +$1.28M |
|
2604
Steven Madden
SHOO
$3.37B
| $2.82M | ﹤0.01% |
+66,920
| New | +$2.71M |
|
2605
Vanguard Consumer Discretionary ETF
VCR
$6.09B
| $2.82M | ﹤0.01% |
7,100
-49,080
| -87% | -$19.1M |
|
2606
CALL
DigitalOcean
DOCN
$13.6B
| $2.81M | ﹤0.01% |
17,900
+3,200
| +22% | +$433K |
|
2607
CALL
Flex
FLEX
$40.8B
| $2.8M | ﹤0.01% |
17,300
+6,700
| +63% | +$813K |
|
2608
Ingles Markets
IMKTA
$1.61B
| $2.8M | ﹤0.01% |
31,627
-43,681
| -58% | -$3.9M |
|
2609
CALL
Arm
ARM
$260B
| $2.8M | ﹤0.01% |
7,900
-57,800
| -88% | -$15.4M |
|
2610
First Financial Bancorp
FFBC
$3.47B
| $2.8M | ﹤0.01% |
82,656
-15,038
| -15% | -$459K |
|
2611
CALL
Argan
AGX
$7.03B
| $2.79M | ﹤0.01% |
+3,500
| New | +$2.33M |
|
2612
Zeta Global
ZETA
$7.3B
| $2.79M | ﹤0.01% |
141,971
-122,100
| -46% | -$2.26M |
|
2613
News Corp Class A
NWSA
$16.4B
| $2.79M | ﹤0.01% |
112,453
+32,053
| +40% | +$831K |
|
2614
SLR Investment Corp
SLRC
$689M
| $2.79M | ﹤0.01% |
225,258
-227,107
| -50% | -$3.16M |
|
2615
PUT
Grab
GRAB
$14.2B
| $2.78M | ﹤0.01% |
737,300
| – | – |
|
2616
Vanguard S&P 500 ETF
VOO
$1.02T
| $2.78M | ﹤0.01% |
4,045
-720
| -15% | -$480K |
|
2617
Akebia Therapeutics
AKBA
$251M
| $2.78M | ﹤0.01% |
2,436,673
+1,138,872
| +88% | +$1.36M |
|
2618
Axalta
AXTA
$7.75B
| $2.77M | ﹤0.01% |
80,900
-10,100
| -11% | -$304K |
|
2619
First Solar
FSLR
$23B
| $2.76M | ﹤0.01% |
11,715
-143,767
| -92% | -$33.7M |
|
2620
ClearPoint Neuro
CLPT
$469M
| $2.76M | ﹤0.01% |
154,851
-55,929
| -27% | -$699K |
|
2621
Cambria Shareholder Yield ETF
SYLD
$1.03B
| $2.76M | ﹤0.01% |
+34,900
| New | +$2.73M |
|
|
IVA
2622
Inventiva
IVA
$1.11B
| $2.75M | ﹤0.01% |
728,111
+501,705
| +222% | +$2.41M |
|
2623
PUT
Shopify
SHOP
$192B
| $2.75M | ﹤0.01% |
24,100
+7,600
| +46% | +$867K |
|
2624
BorgWarner
BWA
$13.8B
| $2.75M | ﹤0.01% |
41,437
-17,844
| -30% | -$1.13M |
|
2625
PUT
Interactive Brokers
IBKR
$42.5B
| $2.75M | ﹤0.01% |
31,600
-8,100
| -20% | -$674K |
|
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.