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 | |
|---|---|---|---|---|---|---|
|
MBVI
1451
M3-Brigade Acquisition VI Corp
MBVI
| $10.1M | 0.01% |
994,317
| – | – |
|
1452
IBM
IBM
$219B
| $10.1M | 0.01% |
35,818
+16,037
| +81% | +$4.04M |
|
1453
iShares MSCI Taiwan ETF
EWT
$11.2B
| $10.1M | 0.01% |
92,700
-200,900
| -68% | -$18.8M |
|
|
UHT
1454
Universal Health Realty Income Trust
UHT
$574M
| $10.1M | 0.01% |
229,241
+100,606
| +78% | +$4.13M |
|
1455
Corning
GLW
$125B
| $10M | 0.01% |
39,287
| – | – |
|
1456
Metallus
MTUS
$803M
| $10M | 0.01% |
536,457
-14,416
| -3% | -$271K |
|
1457
Gorman-Rupp
GRC
$2.05B
| $10M | 0.01% |
109,249
+26,878
| +33% | +$2.04M |
|
1458
Bank of Marin Bancorp
BMRC
$440M
| $10M | 0.01% |
361,575
+94,998
| +36% | +$2.48M |
|
1459
PUT
Credo Technology Group
CRDO
$40.2B
| $10M | 0.01% |
36,800
-45,900
| -56% | -$9.07M |
|
1460
Disc Medicine
IRON
$3.12B
| $10M | 0.01% |
+136,750
| New | +$9.4M |
|
1461
PUT
Vertiv
VRT
$97.2B
| $9.94M | 0.01% |
29,700
-200
| -0.7% | -$63.4K |
|
1462
Bar Harbor Bankshares
BHB
$666M
| $9.93M | 0.01% |
262,996
+10,482
| +4% | +$368K |
|
1463
iShares MSCI Brazil ETF
EWZ
$8.09B
| $9.92M | 0.01% |
287,678
-701,622
| -71% | -$26.2M |
|
1464
CALL
Robinhood
HOOD
$96.6B
| $9.91M | 0.01% |
98,800
-409,300
| -81% | -$34.3M |
|
1465
iShares US Equity Factor ETF
LRGF
$3.68B
| $9.9M | 0.01% |
+130,900
| New | +$9.58M |
|
1466
Photronics
PLAB
$1.74B
| $9.82M | 0.01% |
301,984
+224,447
| +289% | +$9.5M |
|
1467
PUT
MP Materials
MP
$10.2B
| $9.82M | 0.01% |
175,300
-45,500
| -21% | -$2.77M |
|
|
RDAG
1468
Republic Digital Acquisition Co
RDAG
$390M
| $9.8M | 0.01% |
949,630
| – | – |
|
1469
Community Trust Bancorp
CTBI
$1.39B
| $9.78M | 0.01% |
135,211
-12,763
| -9% | -$850K |
|
|
SNDK
1470
CALL
Sandisk
SNDK
$214B
| $9.78M | 0.01% |
4,300
-11,700
| -73% | -$16.7M |
|
1471
Olin
OLN
$2.05B
| $9.74M | 0.01% |
491,216
-704,408
| -59% | -$18.4M |
|
1472
Twist Bioscience
TWST
$8.83B
| $9.73M | 0.01% |
94,600
+57,400
| +154% | +$3.74M |
|
1473
Dimensional US Core Equity 1 ETF
DCOR
$3.49B
| $9.73M | 0.01% |
+118,700
| New | +$9.42M |
|
1474
NexGen Energy
NXE
$7.32B
| $9.72M | 0.01% |
1,035,536
+286,336
| +38% | +$3.25M |
|
1475
Fate Therapeutics
FATE
$282M
| $9.69M | 0.01% |
3,589,863
+123,077
| +4% | +$228K |
|
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.