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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
HKPD icon
5451
Cellyan Biotechnology
HKPD
$5.43M
– –
-10,832
Closed -$6.16K –
BBNX icon
5452
Beta Bionics
BBNX
$882M
– –
-65,495
Closed -$656K –
HSPT
5453
DELISTED
Horizon Space Acquisition II Corp
HSPT
– –
-207,299
Closed -$1.34M –
SION icon
5454
Sionna Therapeutics
SION
$176M
– –
-5,500
Closed -$220K –
TDAC icon
5455
Translational Development Acquisition Corp
TDAC
$209M
– –
-133,325
Closed -$1.41M –
QVCGA
5456
DELISTED
QVC Group Inc Series A
QVCGA
– –
-28,864
Closed -$62.6K –
IPEX
5457
DELISTED
Inflection Point Acquisition Corp V
IPEX
– –
-40,268
Closed -$419K –
PGAC icon
5458
Pantages Capital Acquisition Corp
PGAC
$119M
– –
-59,369
Closed -$622K –
LOKV
5459
DELISTED
Live Oak Acquisition Corp V
LOKV
– –
-533,400
Closed -$5.55M –
TGEN icon
5460
Tecogen Inc
TGEN
$63.1M
– –
-67,418
Closed -$173K –
QSEA icon
5461
Quartzsea Acquisition Corp
QSEA
$108M
– –
-59,288
Closed -$615K –
SOUL icon
5462
Soulpower Acquisition Corp
SOUL
$356M
– –
-124,849
Closed -$1.28M –
DAAQ icon
5463
Digital Asset Acquisition Corp
DAAQ
$241M
– –
-543,750
Closed -$5.57M –
RAAQ
5464
DELISTED
Real Asset Acquisition Corp
RAAQ
– –
-543,750
Closed -$5.71M –
OTF icon
5465
Blue Owl Technology Finance Corp
OTF
$4.18B
– –
-1,274,147
Closed -$15.8M –
FAC
5466
Factorial Energy Inc
FAC
$509M
– –
-653,259
Closed -$6.7M –
BCAR
5467
DELISTED
D. Boral ARC Acquisition I Corp
BCAR
– –
-885,577
Closed -$8.96M –
ENHA icon
5468
Enhanced Group Inc
ENHA
$167M
– –
-332,419
Closed -$3.38M –
SVAC
5469
DELISTED
Spring Valley Acquisition Corp III
SVAC
– –
-554,070
Closed -$5.63M –
QUMS icon
5470
Quantumsphere Acquisition Corp
QUMS
$118M
– –
-35,291
Closed -$357K –
BGSI icon
5471
Boyd Group Services
BGSI
$2.27B
– –
-5,796
Closed -$741K –
BETA icon
5472
Beta Technologies Inc
BETA
$4.22B
– –
-210,987
Closed -$3.1M –
LKSP icon
5473
Lake Superior Acquisition Corp
LKSP
$161M
– –
-181,250
Closed -$1.82M –
MICC icon
5474
The Magnum Ice Cream Company N.V.
MICC
$11.3B
– –
-23,571
Closed -$352K –
LMRI icon
5475
Lumexa Imaging Holdings
LMRI
$1.04B
– –
-16,894
Closed -$145K –
217 218
219
220 221

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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.