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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
+649.66%
AUM
$138B
AUM Growth
+$14.2B
(+11%)
Cap. Flow
-$5.38B
Cap. Flow % of AUM
Cap. Flow %
-3.9%
Top 10 Holdings %
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 |
Intuit
INTU
|
+$753M |
| 2 |
Boston Scientific
BSX
|
+$540M |
| 3 |
Dow Inc
DOW
|
+$485M |
| 4 |
Wells Fargo
WFC
|
+$457M |
| 5 |
Goldman Sachs
GS
|
+$378M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.32B |
| 2 |
NVIDIA
NVDA
|
+$1.02B |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$787M |
| 4 |
Sandisk
SNDK
|
+$744M |
| 5 |
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 | |
|---|---|---|---|---|---|---|---|
2376
PUT
Teradyne
TER
$48.3B
| $3.63M | ﹤0.01% |
7,500
+3,100
| +70% | +$1.17M |
2025 Q4
2 quarters
|
|
2377
Kensington Capital Acquisition Corp VI New Units
KCA.U
| $3.63M | ﹤0.01% |
+362,500
| New | +$3.64M |
2026 Q2
0 quarters
|
|
2378
GSR V Acquisition Corp. Units
GSRVU
| $3.63M | ﹤0.01% |
+362,500
| New | +$3.63M |
2026 Q2
0 quarters
|
|
|
ISNRU
2379
Snow Rothschild Acquisition Corp Units
ISNRU
$200M
| $3.63M | ﹤0.01% |
+362,500
| New | +$3.63M |
2026 Q2
0 quarters
|
|
2380
Carter Bankshares
CARE
$711M
| $3.63M | ﹤0.01% |
106,590
+76,286
| +252% | +$2.06M |
2024 Q1
9 quarters
|
|
2381
General Purpose Acquisition Corp
GPAC
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2382
Activate Energy Acquisition Corp
AEAQ
$316M
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2383
Launchpad Cadenza Acquisition Corp I
LPCV
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2384
Bitcoin Infrastructure Acquisition Corp
BIXI
$304M
| $3.62M | ﹤0.01% |
362,500
| – | – |
2025 Q4
2 quarters
|
|
2385
X3 Acquisition Corp
XCBE
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2386
RMG ML Sports Holdings Unit
SHOTU
| $3.62M | ﹤0.01% |
+362,500
| New | +$3.62M |
2026 Q2
0 quarters
|
|
2387
BillionToOne Inc
BLLN
$4.99B
| $3.62M | ﹤0.01% |
30,176
-52,600
| -64% | -$4.8M |
2026 Q1
1 quarter
|
|
2388
ITHAX Acquisition Corp III
ITHA
$310M
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2389
Vine Hill Capital Investment Corp II
VHCP
$309M
| $3.62M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2390
CALL
Kimberly-Clark
KMB
$37.4B
| $3.61M | ﹤0.01% |
32,900
+20,400
| +163% | +$2.02M |
2026 Q1
1 quarter
|
|
|
WLCOU
2391
Wilco 63 Corporation Units
WLCOU
| $3.61M | ﹤0.01% |
+362,500
| New | +$3.6M |
2026 Q2
0 quarters
|
|
2392
ACP Holdings Acquisition Corp
ACGC
| $3.6M | ﹤0.01% |
+362,500
| New | +$3.6M |
2026 Q2
0 quarters
|
|
2393
MarineMax
HZO
$1.16B
| $3.6M | ﹤0.01% |
98,388
+26,226
| +36% | +$842K |
2025 Q3
3 quarters
|
|
2394
FG Imperii Acquisition Corp
FGII
$290M
| $3.6M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
|
QLEP
2395
Quantum Leap Acquisition Corp
QLEP
$302M
| $3.6M | ﹤0.01% |
+362,500
| New | +$3.6M |
2026 Q2
0 quarters
|
|
2396
PUT
Madrigal Pharmaceuticals
MDGL
$10.5B
| $3.6M | ﹤0.01% |
6,700
+5,900
| +738% | +$3.02M |
2026 Q1
1 quarter
|
|
2397
Legato Merger Corp IV
LEGO
$312M
| $3.6M | ﹤0.01% |
+362,500
| New | +$3.58M |
2026 Q2
0 quarters
|
|
2398
CALL
Monolithic Power Systems
MPWR
$57.4B
| $3.59M | ﹤0.01% |
2,600
-600
| -19% | -$901K |
2025 Q4
2 quarters
|
|
2399
Xsolla SPAC 1
XSLL
$277M
| $3.59M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
2400
Cambridge Acquisition Corp
CAQ
| $3.59M | ﹤0.01% |
362,500
| – | – |
2026 Q1
1 quarter
|
|
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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.