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 | |
|---|---|---|---|---|---|---|
4576
PUT
Oscar Health
OSCR
$9.89B
| $242K | ﹤0.01% |
8,500
-19,300
| -69% | -$416K |
|
4577
Hamilton Beach Brands
HBB
$442M
| $242K | ﹤0.01% |
+10,496
| New | +$209K |
|
4578
Nuveen Growth Opportunities ETF
NUGO
$2.45B
| $241K | ﹤0.01% |
5,571
-4,029
| -42% | -$168K |
|
4579
CALL
Parsons
PSN
$5.24B
| $241K | ﹤0.01% |
+4,600
| New | +$248K |
|
4580
PUT
Levi Strauss
LEVI
$8.27B
| $241K | ﹤0.01% |
+9,700
| New | +$219K |
|
4581
PUT
TD Synnex
SNX
$20B
| $241K | ﹤0.01% |
+900
| New | +$217K |
|
4582
James River Group Holdings
JRVR
$187M
| $240K | ﹤0.01% |
54,565
-309,634
| -85% | -$1.52M |
|
4583
CALL
Teekay Tankers
TNK
$3.16B
| $240K | ﹤0.01% |
+3,700
| New | +$279K |
|
4584
CALL
Iron Mountain
IRM
$36.3B
| $240K | ﹤0.01% |
1,900
-2,100
| -53% | -$257K |
|
4585
Invesco S&P SmallCap Consumer Staples ETF
PSCC
$43.7M
| $240K | ﹤0.01% |
+6,800
| New | +$226K |
|
|
UNIT
4586
Uniti Group
UNIT
$2.42B
| $240K | ﹤0.01% |
+20,888
| New | +$237K |
|
4587
CALL
Robert Half
RHI
$4.58B
| $239K | ﹤0.01% |
+7,800
| New | +$218K |
|
4588
CALL
O'Reilly Automotive
ORLY
$72.1B
| $239K | ﹤0.01% |
2,600
-200
| -7% | -$18.2K |
|
4589
CALL
Jacobs Solutions
J
$17.6B
| $239K | ﹤0.01% |
+1,900
| New | +$234K |
|
|
PBLS
4590
Parabilis Medicines Inc
PBLS
$4.86B
| $239K | ﹤0.01% |
+8,741
| New | +$241K |
|
4591
Ribbon Communications
RBBN
$363M
| $239K | ﹤0.01% |
+102,187
| New | +$270K |
|
4592
CALL
AB InBev
BUD
$155B
| $239K | ﹤0.01% |
+2,900
| New | +$228K |
|
|
DMRA
4593
Damora Therapeutics
DMRA
$1.9B
| $237K | ﹤0.01% |
+9,118
| New | +$221K |
|
4594
JD.com
JD
$39.7B
| $237K | ﹤0.01% |
+9,305
| New | +$274K |
|
|
INVX
4595
Innovex International
INVX
$2.05B
| $237K | ﹤0.01% |
+9,559
| New | +$260K |
|
4596
Spok Holdings
SPOK
$216M
| $237K | ﹤0.01% |
23,150
+3,250
| +16% | +$35.4K |
|
4597
CALL
MetLife
MET
$60B
| $237K | ﹤0.01% |
+2,800
| New | +$226K |
|
4598
PUT
American Water Works
AWK
$26.9B
| $237K | ﹤0.01% |
1,800
-1,200
| -40% | -$154K |
|
4599
CALL
e.l.f. Beauty
ELF
$6.02B
| $237K | ﹤0.01% |
3,200
-13,700
| -81% | -$833K |
|
4600
Strive Inc
ASST
$1.57B
| $236K | ﹤0.01% |
+21,652
| New | +$320K |
|
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.