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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
BCG icon
5426
Binah Capital Group
BCG
$17.4M
– –
-26,702
Closed -$53.7K –
TRAW icon
5427
Traws Pharma
TRAW
$5.68M
– –
-19,244
Closed -$35.2K –
SKYE icon
5428
Skye Bioscience
SKYE
$6.86M
– –
-3,211
Closed -$15.8K –
SERV icon
5429
Serve Robotics
SERV
$280M
– –
-52,147
Closed -$440K –
AMBR icon
5430
Amber International Holding Ltd
AMBR
$160M
– –
-11,502
Closed -$27.1K –
WAY icon
5431
Waystar Holding Corp
WAY
$5.25B
– –
-151,030
Closed -$3.64M –
ONIT icon
5432
Onity Group
ONIT
$214M
– –
-5,689
Closed -$223K –
GPAT icon
5433
GP-Act III Acquisition Corp
GPAT
$179M
– –
-625,000
Closed -$6.78M –
ALF icon
5434
Centurion Acquisition Corp
ALF
$392M
– –
-625,000
Closed -$6.72M –
XOVR icon
5435
EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF
XOVR
$1.45B
– –
-553,700
Closed -$9.35M –
SIMA icon
5436
SIM Acquisition Corp I
SIMA
$89.8M
– –
-500,000
Closed -$5.36M –
ORKA icon
5437
Oruka Therapeutics
ORKA
$4.76B
– –
-19,364
Closed -$950K –
KAPA
5438
Kairos Pharma
KAPA
$2.04M
– –
-5,649
Closed -$22.1K –
AMTM icon
5439
CALL
Amentum Holdings
AMTM
$4.77B
– –
-20,100
Closed -$524K –
AMTM icon
5440
PUT
Amentum Holdings
AMTM
$4.77B
– –
-7,800
Closed -$203K –
VCIC
5441
DELISTED
Vine Hill Capital Investment Corp
VCIC
– –
-481,542
Closed -$5.3M –
GELS icon
5442
Gelteq Ltd
GELS
$4.78M
– –
-10,052
Closed -$6.64K –
TSSI icon
5443
TSS Inc
TSSI
$200M
– –
-49,518
Closed -$644K –
WYHG icon
5444
Wing Yip Food Holdings
WYHG
$107M
– –
-5,897
Closed -$10.1K –
LNKS icon
5445
Linkers Industries
LNKS
$1.24M
– –
-129
Closed -$769 –
ACLC icon
5446
American Century Large Cap Equity ETF
ACLC
$329M
– –
-4,648
Closed -$343K –
FACT icon
5447
FACT II Acquisition Corp
FACT
$261M
– –
-464,728
Closed -$4.88M –
HIT icon
5448
Health In Tech Inc
HIT
$42.6M
– –
-52,306
Closed -$75.8K –
TAVI icon
5449
Tavia Acquisition Corp
TAVI
$172M
– –
-362,500
Closed -$3.83M –
RANG icon
5450
Range Capital Acquisition Corp
RANG
– –
-332,291
Closed -$3.49M –
216 217
218
219 220

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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.