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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
AGYS icon
4951
Agilysys
AGYS
$3.1B
– –
-4,801
Closed -$342K –
AI icon
4952
CALL
C3.ai
AI
$1.82B
– –
-51,600
Closed -$434K –
AI icon
4953
PUT
C3.ai
AI
$1.82B
– –
-42,800
Closed -$360K –
AIG icon
4954
CALL
American International
AIG
$42.2B
– –
-4,000
Closed -$301K –
AIG icon
4955
PUT
American International
AIG
$42.2B
– –
-7,000
Closed -$527K –
AL icon
4956
DELISTED
Air Lease Corp
AL
– –
-100,522
Closed -$6.53M –
ALGS icon
4957
Aligos Therapeutics
ALGS
$30.3M
– –
-23,093
Closed -$172K –
ALTL icon
4958
Pacer Lunt Large Cap Alternator ETF
ALTL
$75.6M
– –
-10,600
Closed -$465K –
AMR icon
4959
PUT
Alpha Metallurgical Resources
AMR
$2.11B
– –
-1,200
Closed -$246K –
AMRC icon
4960
Ameresco
AMRC
$1.03B
– –
-26,853
Closed -$685K –
AMSC icon
4961
PUT
American Superconductor
AMSC
$1.24B
– –
-7,000
Closed -$237K –
AMT icon
4962
CALL
American Tower
AMT
$86.3B
– –
-2,600
Closed -$449K –
AMWD icon
4963
DELISTED
American Woodmark
AMWD
– –
-5,215
Closed -$208K –
ANF icon
4964
CALL
Abercrombie & Fitch
ANF
$6.5B
– –
-10,000
Closed -$914K –
ANF icon
4965
PUT
Abercrombie & Fitch
ANF
$6.5B
– –
-9,900
Closed -$905K –
ANIX icon
4966
Anixa Biosciences
ANIX
$92.8M
– –
-14,492
Closed -$37.4K –
AOMR icon
4967
Angel Oak Mortgage REIT
AOMR
$167M
– –
-74,774
Closed -$615K –
APD icon
4968
Air Products & Chemicals
APD
$66.7B
– –
-4,000
Closed -$1.16M –
APG icon
4969
APi Group
APG
$17.4B
– –
-10,540
Closed -$427K –
APLS icon
4970
DELISTED
Apellis Pharmaceuticals
APLS
– –
-521,965
Closed -$21M –
ARE icon
4971
CALL
Alexandria Real Estate Equities
ARE
$7.16B
– –
-8,000
Closed -$371K –
ARHS icon
4972
Arhaus
ARHS
$1.41B
– –
-175,659
Closed -$1.19M –
ARKG icon
4973
ARK Genomic Revolution ETF
ARKG
$1.98B
– –
-47,800
Closed -$1.26M –
ARWR icon
4974
CALL
Arrowhead Research
ARWR
$7.9B
– –
-5,800
Closed -$364K –
ARWR icon
4975
PUT
Arrowhead Research
ARWR
$7.9B
– –
-4,100
Closed -$257K –
197 198
199
200 201

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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.