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 | |
|---|---|---|---|---|---|---|
3626
PUT
PennyMac Financial
PFSI
$3.9B
| $888K | ﹤0.01% |
+10,200
| New | +$887K |
|
3627
PUT
Sibanye-Stillwater
SBSW
$8.9B
| $887K | ﹤0.01% |
104,500
| – | – |
|
3628
PUT
Trane Technologies
TT
$99.8B
| $884K | ﹤0.01% |
+1,800
| New | +$842K |
|
3629
CALL
Deckers Outdoor
DECK
$12.5B
| $884K | ﹤0.01% |
8,900
-2,300
| -21% | -$242K |
|
3630
Ituran Location and Control
ITRN
$1.01B
| $883K | ﹤0.01% |
14,476
-11,701
| -45% | -$696K |
|
3631
CALL
Nextpower Inc
NXT
$13.1B
| $882K | ﹤0.01% |
7,400
-17,800
| -71% | -$2.2M |
|
3632
e.l.f. Beauty
ELF
$6.02B
| $878K | ﹤0.01% |
11,859
-42,130
| -78% | -$2.56M |
|
3633
PUT
Mondelez International
MDLZ
$82.3B
| $873K | ﹤0.01% |
15,100
+9,200
| +156% | +$554K |
|
3634
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$6.74B
| $871K | ﹤0.01% |
+9,040
| New | +$871K |
|
3635
PTC Therapeutics
PTCT
$5.83B
| $869K | ﹤0.01% |
10,654
-16,456
| -61% | -$1.19M |
|
3636
American Resources Corp
AREC
$287M
| $866K | ﹤0.01% |
402,876
-554,230
| -58% | -$1.24M |
|
3637
CALL
Northrop Grumman
NOC
$78.3B
| $866K | ﹤0.01% |
+1,700
| New | +$981K |
|
3638
CALL
HSBC
HSBC
$357B
| $865K | ﹤0.01% |
+9,100
| New | +$830K |
|
|
CRON
3639
Cronos Group
CRON
$1.22B
| $865K | ﹤0.01% |
310,997
+72,889
| +31% | +$196K |
|
3640
Seadrill
SDRL
$2.96B
| $863K | ﹤0.01% |
+22,810
| New | +$1.06M |
|
3641
Distillate US Fundamental Stability & Value ETF
DSTL
$2.12B
| $863K | ﹤0.01% |
+14,400
| New | +$853K |
|
3642
Helmerich & Payne
HP
$4.35B
| $861K | ﹤0.01% |
26,299
-125,777
| -83% | -$4.71M |
|
|
ETOR
3643
eToro Group
ETOR
$2.41B
| $860K | ﹤0.01% |
21,790
-11,900
| -35% | -$448K |
|
|
TMQ
3644
Trilogy Metals
TMQ
$684M
| $857K | ﹤0.01% |
244,070
-301,000
| -55% | -$1.24M |
|
3645
REX American Resources
REX
$1.47B
| $856K | ﹤0.01% |
+18,969
| New | +$878K |
|
3646
Southern First Bancshares
SFST
$597M
| $854K | ﹤0.01% |
+13,984
| New | +$806K |
|
3647
PUT
Wolfspeed
WOLF
$1.34B
| $854K | ﹤0.01% |
+17,700
| New | +$771K |
|
3648
Hagerty
HGTY
$1.34B
| $854K | ﹤0.01% |
71,610
-19,972
| -22% | -$214K |
|
3649
Chegg
CHGG
$90.8M
| $853K | ﹤0.01% |
844,859
-356,495
| -30% | -$391K |
|
3650
CALL
AstraZeneca
AZN
$257B
| $853K | ﹤0.01% |
4,500
+500
| +13% | +$94K |
|
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.