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 | |
|---|---|---|---|---|---|---|
4376
PUT
CenterPoint Energy
CNP
$25.5B
| $335K | ﹤0.01% |
+7,600
| New | +$326K |
|
4377
CALL
Prudential Financial
PRU
$41.8B
| $335K | ﹤0.01% |
+3,100
| New | +$315K |
|
4378
Papa John's
PZZA
$788M
| $333K | ﹤0.01% |
9,059
-2,726
| -23% | -$94.1K |
|
4379
Cardinal Health
CAH
$53.4B
| $333K | ﹤0.01% |
1,400
-438,483
| -100% | -$91.1M |
|
4380
International Money Express
IMXI
$427M
| $331K | ﹤0.01% |
22,900
-50,026
| -69% | -$766K |
|
4381
MasterCraft Boat Holdings
MCFT
$617M
| $331K | ﹤0.01% |
+12,811
| New | +$298K |
|
4382
Moog Inc Class A
MOG.A
$12.3B
| $331K | ﹤0.01% |
780
-15,627
| -95% | -$5.33M |
|
4383
PUT
MetLife
MET
$60B
| $330K | ﹤0.01% |
+3,900
| New | +$315K |
|
4384
PUT
Pultegroup
PHM
$24.6B
| $329K | ﹤0.01% |
2,400
+400
| +20% | +$48.6K |
|
4385
PUT
Eastman Chemical
EMN
$8.47B
| $328K | ﹤0.01% |
+4,900
| New | +$358K |
|
4386
Cosan
CSAN
$2.71B
| $328K | ﹤0.01% |
113,942
-388,112
| -77% | -$1.38M |
|
4387
Comtech Telecommunications
CMTL
$53M
| $328K | ﹤0.01% |
156,059
-220,032
| -59% | -$846K |
|
4388
CALL
British American Tobacco
BTI
$121B
| $327K | ﹤0.01% |
5,300
-1,700
| -24% | -$103K |
|
4389
CALL
Amgen
AMGN
$238B
| $326K | ﹤0.01% |
900
-7,900
| -90% | -$2.7M |
|
4390
PUT
Terex
TEX
$7.6B
| $326K | ﹤0.01% |
+4,500
| New | +$281K |
|
4391
CALL
Galicia Financial Group
GGAL
$6.66B
| $325K | ﹤0.01% |
6,500
-8,500
| -57% | -$400K |
|
4392
CALL
CDW
CDW
$17.2B
| $323K | ﹤0.01% |
+2,300
| New | +$289K |
|
4393
CALL
Synaptics
SYNA
$3.82B
| $323K | ﹤0.01% |
+2,600
| New | +$294K |
|
4394
Ultralife
ULBI
$117M
| $323K | ﹤0.01% |
51,106
-11,119
| -18% | -$75K |
|
|
MPLT
4395
MapLight Therapeutics
MPLT
$520M
| $322K | ﹤0.01% |
8,998
-5,100
| -36% | -$147K |
|
4396
PUT
TKO Group
TKO
$14.1B
| $322K | ﹤0.01% |
1,600
-7,500
| -82% | -$1.46M |
|
4397
PUT
Arthur J. Gallagher & Co
AJG
$67.6B
| $321K | ﹤0.01% |
1,400
-600
| -30% | -$127K |
|
4398
CALL
Steel Dynamics
STLD
$32.8B
| $321K | ﹤0.01% |
+1,400
| New | +$328K |
|
4399
NovoCure
NVCR
$1.99B
| $321K | ﹤0.01% |
21,200
-24,118
| -53% | -$365K |
|
4400
CorMedix
CRMD
$639M
| $321K | ﹤0.01% |
40,859
+20,271
| +98% | +$160K |
|
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.