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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
WIX icon
5401
CALL
WIX.com
WIX
$3.14B
– –
-3,000
Closed -$270K –
WIX icon
5402
PUT
WIX.com
WIX
$3.14B
– –
-5,000
Closed -$450K –
WIT icon
5403
Wipro
WIT
$19.3B
– –
-123,718
Closed -$262K –
WTW icon
5404
Willis Towers Watson
WTW
$29.3B
– –
-2,800
Closed -$814K –
XEL icon
5405
CALL
Xcel Energy
XEL
$47.7B
– –
-2,600
Closed -$207K –
XHS icon
5406
State Street SPDR S&P Health Care Services ETF
XHS
$209M
– –
-10,600
Closed -$1.06M –
XLC icon
5407
State Street Communication Services Select Sector SPDR ETF
XLC
$23.5B
– –
-211,335
Closed -$23.4M –
XLI icon
5408
CALL
State Street Industrial Select Sector SPDR ETF
XLI
$30.6B
– –
-3,600
Closed -$582K –
XLI icon
5409
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$30.6B
– –
-3,600
Closed -$582K –
XLK icon
5410
State Street Technology Select Sector SPDR ETF
XLK
$121B
– –
-1,295,026
Closed -$172M –
XLRE icon
5411
State Street Real Estate Select Sector SPDR ETF
XLRE
$7.91B
– –
-2,731,500
Closed -$112M –
XOS icon
5412
Xos
XOS
$40M
– –
-110,039
Closed -$179K –
XPEL icon
5413
XPEL
XPEL
$1.21B
– –
-7,700
Closed -$341K –
XVV icon
5414
iShares ESG Screened S&P 500 ETF
XVV
$678M
– –
-40,300
Closed -$1.98M –
YALA icon
5415
Yalla Group
YALA
$841M
– –
-28,200
Closed -$176K –
YSG icon
5416
Yatsen Holding
YSG
$242M
– –
-47,620
Closed -$147K –
ZECP icon
5417
Zacks Earnings Consistent Portfolio ETF
ZECP
$381M
– –
-36,500
Closed -$1.23M –
ZEPP icon
5418
Zepp Health
ZEPP
$44.3M
– –
-19,750
Closed -$236K –
ZG icon
5419
PUT
Zillow
ZG
$7.17B
– –
-8,800
Closed -$364K –
ZIM icon
5420
ZIM Integrated Shipping Services
ZIM
$3.52B
– –
-46,418
Closed -$1.22M –
AS icon
5421
Amer Sports
AS
$17.5B
– –
-12,200
Closed -$402K –
SOC icon
5422
Sable Offshore Corp
SOC
$637M
– –
-35,837
Closed -$592K –
SMXT icon
5423
Solarmax Technology
SMXT
$23.3M
– –
-5,152
Closed -$43.4K –
AIFC icon
5424
AI Financial Corp
AIFC
$49M
– –
-69,519
Closed -$77.2K –
RDDT icon
5425
Reddit
RDDT
$30B
– –
-38,200
Closed -$6.12M –
215 216
217
218 219

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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.