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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
EOCN icon
5126
Eocene Ltd. Ordinary Shares
EOCN
$3.04M
– –
-10,022
Closed -$39.3K –
GLPI icon
5127
Gaming and Leisure Properties
GLPI
$11.4B
– –
-168,028
Closed -$7.46M –
GSHD icon
5128
Goosehead Insurance
GSHD
$1.1B
– –
-6,702
Closed -$286K –
GSK icon
5129
PUT
GSK
GSK
$99.2B
– –
-4,000
Closed -$221K –
GSUS icon
5130
Goldman Sachs MarketBeta US Equity ETF
GSUS
$3.41B
– –
-92,600
Closed -$8.3M –
GTLB icon
5131
CALL
GitLab
GTLB
$8.79B
– –
-19,000
Closed -$411K –
GTLB icon
5132
PUT
GitLab
GTLB
$8.79B
– –
-10,400
Closed -$225K –
GTN icon
5133
Gray Television
GTN
$451M
– –
-145,365
Closed -$631K –
GWW icon
5134
CALL
W.W. Grainger
GWW
$62.7B
– –
-5,400
Closed -$5.89M –
GXAI icon
5135
Gaxos.ai
GXAI
$5.79M
– –
-13,239
Closed -$16K –
HBAN icon
5136
PUT
Huntington Bancshares
HBAN
$30.9B
– –
-10,300
Closed -$161K –
HCA icon
5137
HCA Healthcare
HCA
$99.3B
– –
-1,222
Closed -$517K –
HII icon
5138
CALL
Huntington Ingalls Industries
HII
$10.7B
– –
-2,000
Closed -$760K –
HII icon
5139
Huntington Ingalls Industries
HII
$10.7B
– –
-9,145
Closed -$3.47M –
HOLX icon
5140
DELISTED
Hologic
HOLX
– –
-328,504
Closed -$24.8M –
HON icon
5141
CALL
Honeywell
HON
$67B
– –
-1,000
Closed -$226K –
HTBK icon
5142
DELISTED
Heritage Commerce
HTBK
– –
-319,709
Closed -$3.99M –
HUDI icon
5143
Huadi International Group
HUDI
$9.31M
– –
-13,305
Closed -$16.5K –
HUM icon
5144
Humana
HUM
$49.6B
– –
-58,700
Closed -$16.7M –
HWKN icon
5145
Hawkins
HWKN
$2.75B
– –
-4,800
Closed -$737K –
IBN icon
5146
ICICI Bank
IBN
$108B
– –
-2,485,103
Closed -$64.4M –
ICF icon
5147
iShares Select U.S. REIT ETF
ICF
$2.09B
– –
-230,417
Closed -$14.3M –
ICLR icon
5148
Icon
ICLR
$13.1B
– –
-28,934
Closed -$3.68M –
IDU icon
5149
iShares US Utilities ETF
IDU
$1.45B
– –
-45,600
Closed -$5.29M –
IGM icon
5150
iShares Expanded Tech Sector ETF
IGM
$10.8B
– –
-67,500
Closed -$8M –
204 205
206
207 208

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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.