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 | |
|---|---|---|---|---|---|---|
1426
CVR Energy
CVI
$3.82B
| $10.5M | 0.01% |
380,292
-126,620
| -25% | -$4.02M |
|
1427
Vitamin Cottage Natural Grocers
NGVC
$648M
| $10.5M | 0.01% |
337,311
-70,701
| -17% | -$2.03M |
|
|
BDN
1428
Brandywine Realty Trust
BDN
$548M
| $10.4M | 0.01% |
3,288,148
+77,302
| +2% | +$232K |
|
1429
SEI Investments
SEIC
$13.3B
| $10.4M | 0.01% |
118,660
+99,460
| +518% | +$8.68M |
|
1430
Chemed
CHE
$7.08B
| $10.4M | 0.01% |
22,325
-279,262
| -93% | -$117M |
|
1431
Gen Digital
GEN
$17.4B
| $10.4M | 0.01% |
416,904
-118,193
| -22% | -$2.64M |
|
1432
Republic Bancorp
RBCAA
$1.86B
| $10.4M | 0.01% |
114,638
+58,253
| +103% | +$4.61M |
|
1433
LSB Industries
LXU
$772M
| $10.3M | 0.01% |
955,862
+420,567
| +79% | +$5.63M |
|
1434
Kopin
KOPN
$881M
| $10.3M | 0.01% |
2,302,690
+2,247,798
| +4,095% | +$9.79M |
|
1435
Enterprise Financial Services Corp
EFSC
$2.3B
| $10.3M | 0.01% |
156,410
+106,779
| +215% | +$6.42M |
|
1436
PUT
Rocket Lab Corp
RKLB
$43.7B
| $10.3M | 0.01% |
101,300
+33,800
| +50% | +$3.37M |
|
1437
Coty
COTY
$2.46B
| $10.3M | 0.01% |
4,751,529
+3,268,944
| +220% | +$7.05M |
|
1438
Matrix Service
MTRX
$301M
| $10.2M | 0.01% |
748,118
+110,427
| +17% | +$1.42M |
|
1439
Invesco Mortgage Capital
IVR
$805M
| $10.2M | 0.01% |
1,296,579
-917,336
| -41% | -$7.4M |
|
1440
CALL
Constellation Energy
CEG
$96.9B
| $10.2M | 0.01% |
41,200
+26,000
| +171% | +$7.32M |
|
1441
NVR
NVR
$17B
| $10.2M | 0.01% |
1,501
+891
| +146% | +$5.66M |
|
|
CRCL
1442
Circle Internet Group
CRCL
$22.3B
| $10.2M | 0.01% |
163,136
+79,641
| +95% | +$7.75M |
|
1443
Aveanna Healthcare
AVAH
$2.99B
| $10.2M | 0.01% |
1,192,169
-175,269
| -13% | -$1.24M |
|
1444
Cerus
CERS
$542M
| $10.2M | 0.01% |
3,484,633
+739,612
| +27% | +$1.79M |
|
1445
Driven Brands
DRVN
$2.15B
| $10.2M | 0.01% |
729,718
+103,408
| +17% | +$1.36M |
|
1446
Summit Therapeutics
SMMT
$10.2B
| $10.2M | 0.01% |
696,714
-284,471
| -29% | -$5.04M |
|
1447
ServiceNow
NOW
$132B
| $10.1M | 0.01% |
102,222
-4,533,997
| -98% | -$449M |
|
1448
VEON
VEON
$4.21B
| $10.1M | 0.01% |
193,950
-30,456
| -14% | -$1.59M |
|
1449
State Street SPDR S&P Insurance ETF
KIE
$713M
| $10.1M | 0.01% |
165,700
-183,700
| -53% | -$10.5M |
|
1450
Werner Enterprises
WERN
$2.26B
| $10.1M | 0.01% |
231,689
-26,693
| -10% | -$1.01M |
|
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.