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 | |
|---|---|---|---|---|---|---|
3701
iShares US Healthcare Providers ETF
IHF
$1.24B
| $804K | ﹤0.01% |
14,522
-362,300
| -96% | -$17.9M |
|
3702
PUT
Rubrik
RBRK
$20.6B
| $803K | ﹤0.01% |
+10,000
| New | +$629K |
|
3703
PUT
Enbridge
ENB
$110B
| $802K | ﹤0.01% |
14,800
+10,700
| +261% | +$587K |
|
3704
CALL
TG Therapeutics
TGTX
$8.31B
| $802K | ﹤0.01% |
+14,600
| New | +$598K |
|
3705
Cannae Holdings
CNNE
$672M
| $802K | ﹤0.01% |
55,700
+6,200
| +13% | +$84.3K |
|
3706
CALL
Fidelity National Information Services
FIS
$21.3B
| $801K | ﹤0.01% |
+20,600
| New | +$891K |
|
3707
PUT
Cintas
CTAS
$81.6B
| $799K | ﹤0.01% |
+4,700
| New | +$813K |
|
3708
PUT
Domino's
DPZ
$11.3B
| $799K | ﹤0.01% |
2,700
+1,700
| +170% | +$559K |
|
3709
CALL
TransDigm Group
TDG
$66.4B
| $799K | ﹤0.01% |
+600
| New | +$737K |
|
3710
CALL
Molson Coors Class B
TAP
$8.01B
| $799K | ﹤0.01% |
+20,500
| New | +$856K |
|
|
ACRE
3711
Ares Commercial Real Estate
ACRE
$265M
| $798K | ﹤0.01% |
177,410
-74,669
| -30% | -$368K |
|
3712
Similarweb
SMWB
$727M
| $796K | ﹤0.01% |
129,851
+50,775
| +64% | +$185K |
|
3713
Haemonetics
HAE
$4.95B
| $794K | ﹤0.01% |
10,589
-1,111
| -9% | -$71.4K |
|
|
PICS
3714
PicS N.V.
PICS
$1.37B
| $793K | ﹤0.01% |
74,589
-84,115
| -53% | -$955K |
|
3715
CALL
AngloGold Ashanti
AU
$61.3B
| $793K | ﹤0.01% |
9,800
+3,700
| +61% | +$351K |
|
3716
CALL
PennyMac Financial
PFSI
$3.9B
| $793K | ﹤0.01% |
+9,100
| New | +$791K |
|
|
CRDL
3717
Cardiol Therapeutics
CRDL
$217M
| $792K | ﹤0.01% |
746,937
+212,726
| +40% | +$269K |
|
|
KE
3718
Kimball Electronics
KE
$556M
| $790K | ﹤0.01% |
30,875
-11,855
| -28% | -$304K |
|
3719
Goldgroup Mining
GORO
$240M
| $788K | ﹤0.01% |
625,283
-1,106,069
| -64% | -$1.51M |
|
|
ELVA
3720
Electrovaya
ELVA
$329M
| $786K | ﹤0.01% |
74,861
-46,911
| -39% | -$465K |
|
3721
CALL
Trane Technologies
TT
$99.8B
| $786K | ﹤0.01% |
+1,600
| New | +$748K |
|
3722
PUT
Fluor
FLR
$7.01B
| $786K | ﹤0.01% |
15,000
+10,500
| +233% | +$514K |
|
3723
National Vision
EYE
$1.41B
| $785K | ﹤0.01% |
41,300
-1,900
| -4% | -$38.7K |
|
3724
CALL
HubSpot
HUBS
$12B
| $785K | ﹤0.01% |
+4,300
| New | +$899K |
|
3725
PUT
Zimmer Biomet
ZBH
$19.3B
| $783K | ﹤0.01% |
9,100
+3,100
| +52% | +$272K |
|
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.