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John Overdeck

John Overdeck Two Sigma Investments

AUM $138B Turnover 29.02%
1-Year Est. Return 41.87%
 

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.

This Fund
S&P 500
This Quarter Est. Return
+21.14%
1 Year Est. Return
+41.87%
3 Year Est. Return
+122.61%
5 Year Est. Return
+129.48%
10 Year Est. Return
+649.67%
AUM
$138B
AUM Growth
+$14.2B
Cap. Flow
-$5.38B
Cap. Flow %
-3.9%
Top 10 Hldgs %
8.28%
Holding
5,589
New
1,050
Increased
1,919
Reduced
1,756
Closed
572
Avg Time Held Equity + Options
1.4 years
Top 10 Avg Time Held Equity + Options
0.2 years
Top 20 Avg Time Held Equity + Options
0.2 years
Avg Time Held Equity only
1.7 years
Top 10 Avg Time Held Equity only
0.2 years
Top 20 Avg Time Held Equity only
0.2 years

Top Buys

Rank Stock Value
1
INTU icon
Intuit
INTU
+$753M
2
BSX icon
Boston Scientific
BSX
+$540M
3
DOW icon
Dow Inc
DOW
+$485M
4
WFC icon
Wells Fargo
WFC
+$457M
5
GS icon
Goldman Sachs
GS
+$378M

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.32B
2
NVDA icon
NVIDIA
NVDA
+$1.02B
3
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$787M
4
SNDK icon
Sandisk
SNDK
+$744M
5
DELL icon
Dell
DELL
+$688M

Sector Composition

Rank Sector Weight
1 Technology 19.7%
2 Financials 15.22%
3 Miscellaneous 12.05%
4 Healthcare 11.94%
5 Industrials 11.56%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
DHIL icon
5051
DELISTED
Diamond Hill
DHIL
– –
-47,604
Closed -$8.19M –
DIA icon
5052
CALL
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45.1B
– –
-35,400
Closed -$16.4M –
DIA icon
5053
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45.1B
– –
-35,400
Closed -$16.4M –
DKNG icon
5054
PUT
DraftKings
DKNG
$9.38B
– –
-24,400
Closed -$528K –
DLTR icon
5055
CALL
Dollar Tree
DLTR
$23.3B
– –
-3,000
Closed -$329K –
DLTR icon
5056
PUT
Dollar Tree
DLTR
$23.3B
– –
-2,000
Closed -$219K –
DOGZ icon
5057
Dogness International Corp
DOGZ
$13.2M
– –
-26,209
Closed -$37.5K –
DON icon
5058
WisdomTree US MidCap Dividend Fund
DON
$3.88B
– –
-6,900
Closed -$363K –
DORM icon
5059
Dorman Products
DORM
$3.68B
– –
-8,100
Closed -$845K –
DUK icon
5060
PUT
Duke Energy
DUK
$94.7B
– –
-5,000
Closed -$655K –
DXCM icon
5061
CALL
DexCom
DXCM
$32.5B
– –
-4,000
Closed -$251K –
EBC icon
5062
Eastern Bankshares
EBC
$4.87B
– –
-32,324
Closed -$632K –
ECL icon
5063
Ecolab
ECL
$81B
– –
-219,775
Closed -$58.5M –
ECOR icon
5064
electroCore
ECOR
$70.8M
– –
-19,121
Closed -$115K –
ECX icon
5065
ECARX Holdings
ECX
$334M
– –
-14,400
Closed -$14.1K –
EEFT icon
5066
Euronet Worldwide
EEFT
$2.43B
– –
-194,409
Closed -$12.9M –
EEM icon
5067
CALL
iShares MSCI Emerging Markets ETF
EEM
$29.1B
– –
-6,800
Closed -$386K –
EEM icon
5068
PUT
iShares MSCI Emerging Markets ETF
EEM
$29.1B
– –
-6,700
Closed -$380K –
EHAB icon
5069
DELISTED
Enhabit
EHAB
– –
-108,400
Closed -$1.53M –
EINC icon
5070
VanEck Energy Income ETF
EINC
$81.8M
– –
-7,700
Closed -$907K –
EM
5071
DELISTED
Smart Share Global Ltd
EM
– –
-23,685
Closed -$26.8K –
EMBC icon
5072
Embecta
EMBC
$355M
– –
-103,409
Closed -$914K –
ENB icon
5073
Enbridge
ENB
$107B
– –
-61,465
Closed -$3.37M –
EPM icon
5074
Evolution Petroleum
EPM
$149M
– –
-18,033
Closed -$82.6K –
EPOW icon
5075
E-Power Inc
EPOW
$7.72M
– –
-1,925
Closed -$37.2K –
201 202
203
204 205

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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 $5.38B 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 Miscellaneous.

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.