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 | |
|---|---|---|---|---|---|---|
2326
Neumora Therapeutics
NMRA
$306M
| $3.82M | ﹤0.01% |
2,244,829
+208,137
| +10% | +$396K |
|
|
EVOX
2327
Evolution Global Acquisition Corp
EVOX
$323M
| $3.81M | ﹤0.01% |
380,625
| – | – |
|
2328
CALL
Altria Group
MO
$110B
| $3.81M | ﹤0.01% |
53,000
+49,400
| +1,372% | +$3.45M |
|
2329
Old Republic International
ORI
$10B
| $3.8M | ﹤0.01% |
92,872
+26,423
| +40% | +$1.05M |
|
2330
PUT
DigitalOcean
DOCN
$13.6B
| $3.8M | ﹤0.01% |
24,200
+1,200
| +5% | +$162K |
|
|
OKLO
2331
Oklo
OKLO
$7.83B
| $3.8M | ﹤0.01% |
72,538
-87,779
| -55% | -$5.48M |
|
2332
FVCBankcorp
FVCB
$335M
| $3.8M | ﹤0.01% |
+216,865
| New | +$3.46M |
|
|
FSUN
2333
FirstSun Capital Bancorp
FSUN
$1.76B
| $3.79M | ﹤0.01% |
97,802
-216,042
| -69% | -$7.91M |
|
2334
CALL
Plains GP Holdings
PAGP
$5.31B
| $3.79M | ﹤0.01% |
156,200
+57,500
| +58% | +$1.38M |
|
2335
ACI Worldwide
ACIW
$5.24B
| $3.79M | ﹤0.01% |
75,310
-535,943
| -88% | -$23.3M |
|
2336
CALL
Apollo Global Management
APO
$78.4B
| $3.79M | ﹤0.01% |
32,000
+29,000
| +967% | +$3.65M |
|
2337
Myers Industries
MYE
$1.26B
| $3.78M | ﹤0.01% |
107,081
+64,654
| +152% | +$1.52M |
|
|
HCIC
2338
Hennessy Capital Investment Corp
HCIC
$355M
| $3.78M | ﹤0.01% |
+380,625
| New | +$3.76M |
|
2339
Viatris
VTRS
$18.7B
| $3.78M | ﹤0.01% |
238,000
+37,400
| +19% | +$580K |
|
2340
Flex
FLEX
$40.8B
| $3.78M | ﹤0.01% |
+23,300
| New | +$2.83M |
|
2341
Fortrea Holdings
FTRE
$1.75B
| $3.76M | ﹤0.01% |
215,937
-235,581
| -52% | -$3.18M |
|
2342
American Superconductor
AMSC
$1.45B
| $3.75M | ﹤0.01% |
90,340
-78,676
| -47% | -$3.56M |
|
2343
Pacer US Large Cap Cash Cows Growth Leaders ETF
COWG
$2.32B
| $3.75M | ﹤0.01% |
+93,400
| New | +$3.48M |
|
2344
Orange County Bancorp
OBT
$509M
| $3.74M | ﹤0.01% |
101,648
+23,343
| +30% | +$812K |
|
2345
Equity Lifestyle Properties
ELS
$12.7B
| $3.73M | ﹤0.01% |
57,921
-825,173
| -93% | -$52.2M |
|
2346
The Bancorp
TBBK
$2.74B
| $3.73M | ﹤0.01% |
59,505
-35,009
| -37% | -$2.01M |
|
|
SPEG
2347
Silver Pegasus Acquisition Corp
SPEG
$159M
| $3.72M | ﹤0.01% |
362,500
| – | – |
|
2348
GSK
GSK
$105B
| $3.72M | ﹤0.01% |
+70,993
| New | +$3.75M |
|
2349
Citizens Community Bancorp
CZWI
$203M
| $3.72M | ﹤0.01% |
159,050
+84,639
| +114% | +$1.77M |
|
2350
Donegal Group Class A
DGICA
$693M
| $3.72M | ﹤0.01% |
197,233
+19,591
| +11% | +$340K |
|
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.