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JO

John Overdeck Two Sigma Investments

AUM $138B
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
-$4.38B
Cap. Flow %
-3.17%
Top 10 Hldgs %
8.28%
Holding
5,589
New
1,050
Increased
1,919
Reduced
1,756
Closed
572

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
Sandisk
SNDK
+$744M
5
DELL icon
Dell
DELL
+$688M

Sector Composition

Rank Sector Weight
1 Technology 19.71%
2 Financials 15.22%
3 Healthcare 11.94%
4 Industrials 11.55%
5 Consumer Discretionary 9.6%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WIX icon
5401
CALL
WIX.com
WIX
$3.43B
– –
-3,000
Closed -$270K
WIX icon
5402
PUT
WIX.com
WIX
$3.43B
– –
-5,000
Closed -$450K
WIT icon
5403
Wipro
WIT
$18.7B
– –
-123,718
Closed -$262K
WTW icon
5404
Willis Towers Watson
WTW
$31.8B
– –
-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
$213M
– –
-10,600
Closed -$1.06M
XLC icon
5407
State Street Communication Services Select Sector SPDR ETF
XLC
$22.5B
– –
-211,335
Closed -$23.4M
XLI icon
5408
CALL
State Street Industrial Select Sector SPDR ETF
XLI
$33.8B
– –
-3,600
Closed -$582K
XLI icon
5409
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$33.8B
– –
-3,600
Closed -$582K
XLK icon
5410
State Street Technology Select Sector SPDR ETF
XLK
$120B
– –
-1,295,026
Closed -$172M
XLRE icon
5411
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.64B
– –
-2,731,500
Closed -$112M
XOS icon
5412
Xos
XOS
$49.8M
– –
-110,039
Closed -$179K
XPEL icon
5413
XPEL
XPEL
$1.42B
– –
-7,700
Closed -$341K
XVV icon
5414
iShares ESG Screened S&P 500 ETF
XVV
$674M
– –
-40,300
Closed -$1.98M
YALA
5415
Yalla Group
YALA
$856M
– –
-28,200
Closed -$176K
YSG
5416
Yatsen Holding
YSG
$281M
– –
-47,620
Closed -$147K
ZECP icon
5417
Zacks Earnings Consistent Portfolio ETF
ZECP
$371M
– –
-36,500
Closed -$1.23M
ZEPP
5418
Zepp Health
ZEPP
$75.5M
– –
-19,750
Closed -$236K
ZG icon
5419
PUT
Zillow
ZG
$8.27B
– –
-8,800
Closed -$364K
ZIM icon
5420
ZIM Integrated Shipping Services
ZIM
$3.4B
– –
-46,418
Closed -$1.22M
AS icon
5421
Amer Sports
AS
$19B
– –
-12,200
Closed -$402K
SOC icon
5422
Sable Offshore Corp
SOC
$979M
– –
-35,837
Closed -$592K
SMXT icon
5423
Solarmax Technology
SMXT
$17.3M
– –
-5,152
Closed -$43.4K
AIFC
5424
AI Financial Corp
AIFC
$94.5M
– –
-69,519
Closed -$77.2K
RDDT icon
5425
Reddit
RDDT
$29.5B
– –
-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 $4.38B 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 Healthcare.

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.