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 | |
|---|---|---|---|---|---|---|
4626
CALL
Nokia
NOK
$57B
| $227K | ﹤0.01% |
+17,100
| New | +$220K |
|
|
SUPV
4627
Grupo Supervielle
SUPV
$692M
| $227K | ﹤0.01% |
23,500
-1,000
| -4% | -$9.25K |
|
4628
Clean Energy Fuels
CLNE
$357M
| $227K | ﹤0.01% |
110,600
+20,100
| +22% | +$42.7K |
|
4629
AYTU BioPharma
AYTU
$25.4M
| $226K | ﹤0.01% |
105,326
-16,647
| -14% | -$39.3K |
|
4630
PUT
Cencora
COR
$60.7B
| $226K | ﹤0.01% |
800
-1,000
| -56% | -$288K |
|
4631
Custom Truck One Source
CTOS
$2.22B
| $226K | ﹤0.01% |
19,152
-11,000
| -36% | -$104K |
|
4632
PUT
Polaris
PII
$3.66B
| $226K | ﹤0.01% |
+3,300
| New | +$213K |
|
|
OMSE
4633
OMS Energy Technologies
OMSE
$190M
| $226K | ﹤0.01% |
58,510
-2,373
| -4% | -$10.7K |
|
4634
CryoPort
CYRX
$868M
| $225K | ﹤0.01% |
+14,344
| New | +$184K |
|
4635
PUT
Waters Corp
WAT
$40.4B
| $225K | ﹤0.01% |
+600
| New | +$205K |
|
4636
PUT
Global Payments
GPN
$24.7B
| $225K | ﹤0.01% |
+3,100
| New | +$213K |
|
4637
PUT
monday.com
MNDY
$3.84B
| $224K | ﹤0.01% |
3,100
-4,900
| -61% | -$359K |
|
4638
Sight Sciences
SGHT
$455M
| $222K | ﹤0.01% |
40,944
-86,165
| -68% | -$397K |
|
4639
CALL
PNC Financial Services
PNC
$97B
| $222K | ﹤0.01% |
+900
| New | +$202K |
|
4640
CALL
Asbury Automotive
ABG
$3.86B
| $221K | ﹤0.01% |
+1,100
| New | +$217K |
|
|
PONY
4641
PUT
Pony AI Inc
PONY
$3.58B
| $221K | ﹤0.01% |
+31,800
| New | +$295K |
|
4642
Riverview Bancorp
RVSB
$103M
| $221K | ﹤0.01% |
40,690
-11,700
| -22% | -$64.8K |
|
4643
Eastern Company
EML
$151M
| $221K | ﹤0.01% |
+7,920
| New | +$174K |
|
4644
CALL
Gartner
IT
$12.4B
| $220K | ﹤0.01% |
+1,700
| New | +$256K |
|
|
4645
PUT
Gartner
IT
$12.4B
| $220K | ﹤0.01% |
+1,700
| New | +$256K |
|
4646
GrowGeneration
GRWG
$101M
| $220K | ﹤0.01% |
148,751
+43,798
| +42% | +$62K |
|
|
GRCE
4647
Grace Therapeutics
GRCE
$46.3M
| $220K | ﹤0.01% |
+96,890
| New | +$268K |
|
|
AVLN
4648
Avalyn Pharma
AVLN
$1.7B
| $220K | ﹤0.01% |
+6,675
| New | +$193K |
|
4649
PUT
Ford
F
$57.5B
| $220K | ﹤0.01% |
+15,800
| New | +$213K |
|
4650
CALL
Annaly Capital Management
NLY
$17.5B
| $219K | ﹤0.01% |
9,800
-3,300
| -25% | -$72.9K |
|
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.