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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
LRCX icon
2176
CALL
Lam Research
LRCX
$326B
$4.46M ﹤0.01%
10,300
+6,200
+151% +$1.88M
2025 Q4
2 quarters
TTEK icon
2177
Tetra Tech
TTEK
$8.97B
$4.46M ﹤0.01%
154,365
-29,400
-16% -$863K
2022 Q3
15 quarters
OOMA icon
2178
Ooma
OOMA
$548M
$4.46M ﹤0.01%
231,848
+103,009
+80% +$1.77M
2019 Q1
29 quarters
RLX icon
2179
RLX Technology
RLX
$2.05B
$4.45M ﹤0.01%
2,343,695
+1,715,872
+273% +$3.56M
2025 Q3
3 quarters
CBZ icon
2180
CBIZ
CBZ
$3.01B
$4.44M ﹤0.01%
138,434
-192,251
-58% -$5.98M
2026 Q1
1 quarter
GBDC icon
2181
Golub Capital BDC
GBDC
$3.11B
$4.44M ﹤0.01%
344,707
+202,247
+142% +$2.64M
2020 Q2
24 quarters
OGG
2182
Osisko Gold Group
OGG
$793M
$4.43M ﹤0.01%
1,802,654
+87,426
+5% +$259K
2025 Q3
3 quarters
XTL icon
2183
State Street SPDR S&P Telecom ETF
XTL
$485M
$4.41M ﹤0.01%
+19,400
New +$4.32M
2026 Q2
0 quarters
KREF icon
2184
KKR Real Estate Finance Trust
KREF
$321M
$4.4M ﹤0.01%
643,206
-298,995
-32% -$1.98M
2024 Q3
7 quarters
TTD icon
2185
CALL
Trade Desk
TTD
$5.95B
$4.4M ﹤0.01%
243,300
+225,300
+1,252% +$4.78M
2025 Q4
2 quarters
WCC icon
2186
WESCO International
WCC
$17B
$4.4M ﹤0.01%
+12,729
New +$4.32M
2026 Q2
0 quarters
COST icon
2187
PUT
Costco
COST
$442B
$4.4M ﹤0.01%
4,700
-3,300
-41% -$3.29M
2026 Q1
1 quarter
CABA icon
2188
Cabaletta Bio
CABA
$261M
$4.39M ﹤0.01%
1,410,931
-1,086,986
-44% -$3.57M
2020 Q2
24 quarters
AM icon
2189
Antero Midstream
AM
$9.8B
$4.39M ﹤0.01%
192,842
+80,090
+71% +$1.74M
2022 Q4
14 quarters
FXO icon
2190
First Trust Financials AlphaDEX Fund
FXO
$1.06B
$4.38M ﹤0.01%
70,200
-133,900
-66% -$7.98M
2025 Q2
4 quarters
APP icon
2191
CALL
Applovin
APP
$89.7B
$4.38M ﹤0.01%
8,500
-2,300
-21% -$1.11M
2025 Q4
2 quarters
NAVI icon
2192
Navient
NAVI
$847M
$4.38M ﹤0.01%
514,544
-489,366
-49% -$4.11M
2022 Q4
14 quarters
SBXE icon
2193
SilverBox Corp V
SBXE
$351M
$4.38M ﹤0.01%
434,999
– –
2026 Q1
1 quarter
MLYS icon
2194
Mineralys Therapeutics
MLYS
$1.87B
$4.37M ﹤0.01%
162,082
-149,406
-48% -$4.1M
2025 Q4
2 quarters
IAK icon
2195
iShares US Insurance ETF
IAK
$455M
$4.37M ﹤0.01%
31,100
-28,000
-47% -$3.72M
2025 Q2
4 quarters
DIS icon
2196
PUT
Walt Disney
DIS
$193B
$4.36M ﹤0.01%
45,300
+9,600
+27% +$979K
2025 Q3
3 quarters
GIC icon
2197
Global Industrial
GIC
$1.71B
$4.35M ﹤0.01%
129,947
-72,772
-36% -$2.31M
2023 Q1
13 quarters
RDDT icon
2198
PUT
Reddit
RDDT
$29.5B
$4.34M ﹤0.01%
25,000
-54,000
-68% -$8.65M
2025 Q3
3 quarters
ATAI icon
2199
DELISTED
AtaiBeckley Inc
ATAI
$4.33M ﹤0.01%
822,471
-1,153,081
-58% -$4.85M
2021 Q4
18 quarters
TREE icon
2200
LendingTree
TREE
$373M
$4.33M ﹤0.01%
97,784
+26,341
+37% +$1.06M
2025 Q3
3 quarters

Similar funds

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.