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 | |
|---|---|---|---|---|---|---|
2876
Alector
ALEC
$264M
| $2.1M | ﹤0.01% |
1,045,376
-233,930
| -18% | -$501K |
|
2877
Energy Recovery
ERII
$403M
| $2.1M | ﹤0.01% |
232,829
+143,930
| +162% | +$1.37M |
|
2878
PUT
The Mosaic Company
MOS
$7.76B
| $2.1M | ﹤0.01% |
99,100
+89,200
| +901% | +$2.06M |
|
2879
PUT
Procter & Gamble
PG
$336B
| $2.1M | ﹤0.01% |
+14,300
| New | +$2.08M |
|
2880
ATN International
ATNI
$477M
| $2.1M | ﹤0.01% |
79,096
+23,616
| +43% | +$642K |
|
2881
Vanguard US Value Factor ETF
VFVA
$944M
| $2.09M | ﹤0.01% |
14,100
+5,900
| +72% | +$847K |
|
2882
Aon
AON
$75.3B
| $2.09M | ﹤0.01% |
6,297
-13,240
| -68% | -$4.27M |
|
2883
Domino's
DPZ
$11.3B
| $2.08M | ﹤0.01% |
7,040
-105,524
| -94% | -$34.7M |
|
2884
Delta Air Lines
DAL
$54.2B
| $2.08M | ﹤0.01% |
+22,246
| New | +$1.68M |
|
2885
First Trust SMID Cap Rising Dividend Achievers ETF
SDVY
$11.6B
| $2.08M | ﹤0.01% |
48,200
-31,400
| -39% | -$1.31M |
|
2886
Immersion
IMMR
$249M
| $2.08M | ﹤0.01% |
307,127
+276,996
| +919% | +$1.75M |
|
2887
CALL
Petrobras
PBR
$123B
| $2.08M | ﹤0.01% |
128,600
+67,200
| +109% | +$1.31M |
|
|
AEVA
2888
Aeva Technologies
AEVA
$1.27B
| $2.07M | ﹤0.01% |
72,196
-102,407
| -59% | -$2.02M |
|
2889
Zura Bio
ZURA
$561M
| $2.07M | ﹤0.01% |
350,902
+32,716
| +10% | +$156K |
|
|
GOOD
2890
Gladstone Commercial Corp
GOOD
$625M
| $2.07M | ﹤0.01% |
168,146
+11,025
| +7% | +$137K |
|
2891
PUT
Core Scientific
CORZ
$5.72B
| $2.07M | ﹤0.01% |
80,700
+43,500
| +117% | +$1.02M |
|
2892
Optical Cable Corp
OCC
$122M
| $2.06M | ﹤0.01% |
98,449
+27,780
| +39% | +$385K |
|
2893
Carlyle Group
CG
$17.6B
| $2.06M | ﹤0.01% |
+48,931
| New | +$2.3M |
|
|
GLIBK
2894
Liberty Capital Corp Series C GCI Group Common Stock
GLIBK
$1.02B
| $2.06M | ﹤0.01% |
95,562
-528,797
| -85% | -$14.8M |
|
2895
PUT
Sysco
SYY
$40.2B
| $2.06M | ﹤0.01% |
24,600
+13,800
| +128% | +$1.04M |
|
|
SAFE
2896
Safehold
SAFE
$1.09B
| $2.05M | ﹤0.01% |
130,889
+101,132
| +340% | +$1.53M |
|
2897
American Vanguard Corp
AVD
$67.9M
| $2.05M | ﹤0.01% |
732,819
-13,370
| -2% | -$36.3K |
|
2898
Hingham Institution for Saving
HIFS
$654M
| $2.05M | ﹤0.01% |
6,669
-957
| -13% | -$275K |
|
2899
Option Care Health
OPCH
$3.55B
| $2.05M | ﹤0.01% |
97,596
-86,139
| -47% | -$2M |
|
|
ONL
2900
Orion Office REIT
ONL
$162M
| $2.05M | ﹤0.01% |
708,069
+262,145
| +59% | +$718K |
|
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.