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 | |
|---|---|---|---|---|---|---|
2251
CALL
Enphase Energy
ENPH
$5.1B
| $4.1M | ﹤0.01% |
83,200
-1,800
| -2% | -$82K |
|
2252
Granite Ridge Resources
GRNT
$674M
| $4.1M | ﹤0.01% |
928,705
+460,520
| +98% | +$2.42M |
|
2253
ABM Industries
ABM
$2.74B
| $4.09M | ﹤0.01% |
92,543
-158,752
| -63% | -$6.51M |
|
2254
Emergent Biosolutions
EBS
$260M
| $4.09M | ﹤0.01% |
488,284
-88,844
| -15% | -$743K |
|
|
ARI
2255
Apollo Commercial Real Estate
ARI
$889M
| $4.09M | ﹤0.01% |
382,924
+183,654
| +92% | +$2M |
|
2256
Constellation Brands
STZ
$23.2B
| $4.09M | ﹤0.01% |
+29,399
| New | +$4.37M |
|
2257
VanEck Steel ETF
SLX
$175M
| $4.09M | ﹤0.01% |
41,532
+9,032
| +28% | +$941K |
|
2258
Illumina
ILMN
$33.1B
| $4.08M | ﹤0.01% |
23,217
-50,500
| -69% | -$7.39M |
|
2259
CALL
IBM
IBM
$222B
| $4.08M | ﹤0.01% |
14,500
+10,500
| +263% | +$2.65M |
|
|
AACI
2260
Armada Acquisition Corp III
AACI
$342M
| $4.07M | ﹤0.01% |
407,812
| – | – |
|
|
GHXIU
2261
Gores Holdings XI Inc Units
GHXIU
| $4.07M | ﹤0.01% |
+401,168
| New | +$4.05M |
|
2262
PUT
Akamai
AKAM
$15.9B
| $4.07M | ﹤0.01% |
+34,400
| New | +$4.28M |
|
2263
Oaktree Specialty Lending
OCSL
$1.14B
| $4.06M | ﹤0.01% |
340,283
-542,978
| -61% | -$6.55M |
|
2264
Kohl's
KSS
$2B
| $4.06M | ﹤0.01% |
228,910
-1,015,060
| -82% | -$15.1M |
|
2265
NiSource
NI
$19.5B
| $4.05M | ﹤0.01% |
85,264
+22,581
| +36% | +$1.07M |
|
|
CHEC
2266
Chenghe Acquisition III Co
CHEC
$177M
| $4.05M | ﹤0.01% |
398,750
| – | – |
|
2267
Amneal Pharmaceuticals
AMRX
$6.24B
| $4.04M | ﹤0.01% |
233,270
-49,407
| -17% | -$677K |
|
|
FLOC
2268
Flowco Holdings
FLOC
$995M
| $4.03M | ﹤0.01% |
+188,800
| New | +$4.51M |
|
2269
Ultrapar
UGP
$7.18B
| $4.03M | ﹤0.01% |
802,011
-144,110
| -15% | -$793K |
|
2270
Waters Corp
WAT
$40.4B
| $4.02M | ﹤0.01% |
10,720
-2,454
| -19% | -$837K |
|
|
GMRS
2271
GMR Solutions Inc
GMRS
$728M
| $4.02M | ﹤0.01% |
+259,717
| New | +$3.26M |
|
2272
Credicorp
BAP
$30.1B
| $4.02M | ﹤0.01% |
10,306
-10,553
| -51% | -$3.61M |
|
|
GIW
2273
GigCapital8
GIW
| $4.01M | ﹤0.01% |
398,750
| – | – |
|
2274
PUT
First Solar
FSLR
$23B
| $4.01M | ﹤0.01% |
17,000
+9,000
| +113% | +$2.11M |
|
|
NTWO
2275
Newbury Street II Acquisition Corp
NTWO
$277M
| $3.99M | ﹤0.01% |
375,000
| – | – |
|
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.