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 | |
|---|---|---|---|---|---|---|
3151
Kilroy Realty
KRC
$4.25B
| $1.56M | ﹤0.01% |
41,600
-236,724
| -85% | -$8.05M |
|
3152
Coeur Mining
CDE
$21.6B
| $1.56M | ﹤0.01% |
95,457
-4,852,907
| -98% | -$88.5M |
|
3153
PUT
Rambus
RMBS
$9.9B
| $1.55M | ﹤0.01% |
+11,700
| New | +$1.52M |
|
3154
PUT
TE Connectivity
TEL
$58.9B
| $1.55M | ﹤0.01% |
7,700
+4,800
| +166% | +$1.02M |
|
3155
PUT
Tapestry
TPR
$26B
| $1.55M | ﹤0.01% |
10,600
+8,600
| +430% | +$1.23M |
|
3156
PUT
Zeta Global
ZETA
$7.3B
| $1.55M | ﹤0.01% |
78,600
+5,900
| +8% | +$109K |
|
3157
Scholastic
SCHL
$757M
| $1.55M | ﹤0.01% |
33,591
-7,859
| -19% | -$323K |
|
3158
Lexicon Pharmaceuticals
LXRX
$1.02B
| $1.54M | ﹤0.01% |
643,444
-556,188
| -46% | -$1.08M |
|
|
SKYT
3159
DELISTED
SkyWater Technology
SKYT
| $1.54M | ﹤0.01% |
44,344
-9,206
| -17% | -$315K |
|
|
BWAY
3160
Brainsway
BWAY
$592M
| $1.54M | ﹤0.01% |
99,545
-28,642
| -22% | -$434K |
|
|
ONCH
3161
1RT Acquisition Corp
ONCH
$222M
| $1.54M | ﹤0.01% |
150,624
| – | – |
|
3162
First Trust Technology AlphaDEX Fund
FXL
$2.76B
| $1.54M | ﹤0.01% |
+7,100
| New | +$1.38M |
|
3163
CALL
FTAI Aviation
FTAI
$21.5B
| $1.54M | ﹤0.01% |
5,700
+3,600
| +171% | +$906K |
|
3164
Atmus Filtration Technologies
ATMU
$4.06B
| $1.54M | ﹤0.01% |
30,192
-55,776
| -65% | -$3.03M |
|
3165
CALL
Oracle
ORCL
$422B
| $1.54M | ﹤0.01% |
10,500
-36,200
| -78% | -$6.56M |
|
|
TLN
3166
CALL
Talen Energy Corp
TLN
$15.1B
| $1.54M | ﹤0.01% |
4,000
-27,500
| -87% | -$10.1M |
|
3167
CALL
Shift4
FOUR
$3.78B
| $1.54M | ﹤0.01% |
31,600
+26,600
| +532% | +$1.15M |
|
3168
IDEAYA Biosciences
IDYA
$3.83B
| $1.54M | ﹤0.01% |
41,205
-77,911
| -65% | -$2.38M |
|
3169
Biogen
BIIB
$32B
| $1.54M | ﹤0.01% |
7,105
-2,339
| -25% | -$447K |
|
3170
First Busey Corp
BUSE
$2.5B
| $1.53M | ﹤0.01% |
52,024
-128,767
| -71% | -$3.49M |
|
3171
CALL
Enbridge
ENB
$110B
| $1.53M | ﹤0.01% |
28,300
+22,900
| +424% | +$1.26M |
|
3172
Garrett Motion
GTX
$4.96B
| $1.53M | ﹤0.01% |
42,300
-262,897
| -86% | -$7.31M |
|
3173
PUT
Okta
OKTA
$23.5B
| $1.53M | ﹤0.01% |
+11,200
| New | +$1.05M |
|
|
ECG
3174
Everus Construction Group
ECG
$6.43B
| $1.53M | ﹤0.01% |
+9,200
| New | +$1.35M |
|
3175
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$593M
| $1.52M | ﹤0.01% |
+21,000
| New | +$1.51M |
|
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.