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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
+649.67%
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 | |
|---|---|---|---|---|---|---|---|
4476
CALL
Canadian Pacific Kansas City
CP
$76.1B
| $286K | ﹤0.01% |
+3,300
| New | +$283K |
2026 Q2
0 quarters
|
|
4477
State Street SPDR S&P 1500 Value Tilt ETF
VLU
$778M
| $286K | ﹤0.01% |
+1,200
| New | +$279K |
2026 Q2
0 quarters
|
|
|
YARW
4478
Yarrow Bioscience
YARW
$169M
| $286K | ﹤0.01% |
8,776
+248
| +3% | +$8.04K |
2025 Q3
3 quarters
|
|
4479
PUT
Allstate
ALL
$62.4B
| $286K | ﹤0.01% |
1,200
-4,800
| -80% | -$1.04M |
2026 Q1
1 quarter
|
|
4480
AdaptHealth
AHCO
$784M
| $286K | ﹤0.01% |
27,401
+8,593
| +46% | +$95.9K |
2026 Q1
1 quarter
|
|
4481
PUT
O'Reilly Automotive
ORLY
$72.1B
| $285K | ﹤0.01% |
+3,100
| New | +$283K |
2026 Q2
0 quarters
|
|
4482
Madison Covered Call & Equity Strategy Fund
MCN
$111M
| $285K | ﹤0.01% |
51,709
| – | – |
2025 Q4
2 quarters
|
|
4483
CALL
Burlington
BURL
$16.5B
| $285K | ﹤0.01% |
+900
| New | +$290K |
2026 Q2
0 quarters
|
|
4484
DELISTED
Forte Biosciences
FBRX
| $285K | ﹤0.01% |
13,411
-2,098
| -14% | -$49.7K |
2025 Q4
2 quarters
|
|
4485
enGene Therapeutics
ENGN
$106M
| $285K | ﹤0.01% |
164,570
+5,501
| +3% | +$22.4K |
2025 Q4
2 quarters
|
|
4486
CALL
Ventas
VTR
$43.3B
| $284K | ﹤0.01% |
3,200
-2,700
| -46% | -$230K |
2026 Q1
1 quarter
|
|
4487
PUT
Pilgrim's Pride
PPC
$6.79B
| $284K | ﹤0.01% |
+10,100
| New | +$310K |
2026 Q2
0 quarters
|
|
4488
State Street Industrial Select Sector SPDR ETF
XLI
$30.1B
| $283K | ﹤0.01% |
+1,530
| New | +$266K |
2026 Q2
0 quarters
|
|
4489
PUT
Nice
NICE
$6.67B
| $282K | ﹤0.01% |
+3,100
| New | +$301K |
2026 Q2
0 quarters
|
|
4490
Tenaya Therapeutics
TNYA
$84.7M
| $281K | ﹤0.01% |
380,790
-899,600
| -70% | -$683K |
2022 Q3
15 quarters
|
|
4491
Bullish
BLSH
$4.16B
| $281K | ﹤0.01% |
12,000
+4,900
| +69% | +$170K |
2025 Q3
3 quarters
|
|
4492
CALL
Under Armour
UAA
$2.04B
| $281K | ﹤0.01% |
43,900
+26,200
| +148% | +$155K |
2026 Q1
1 quarter
|
|
4493
CALL
Lennar Class A
LEN
$18B
| $281K | ﹤0.01% |
+3,100
| New | +$277K |
2026 Q2
0 quarters
|
|
4494
Better Online Solutions
BOSC
$30.3M
| $280K | ﹤0.01% |
62,335
+18,882
| +43% | +$85.1K |
2025 Q4
2 quarters
|
|
4495
CALL
Barrick Mining
B
$66.6B
| $279K | ﹤0.01% |
7,600
-18,400
| -71% | -$754K |
2026 Q1
1 quarter
|
|
4496
Exagen
XGN
$180M
| $279K | ﹤0.01% |
59,992
-97,829
| -62% | -$368K |
2025 Q2
4 quarters
|
|
4497
AirSculpt Technologies
AIRS
$90.1M
| $278K | ﹤0.01% |
61,771
-4,300
| -7% | -$17.4K |
2025 Q2
4 quarters
|
|
4498
PUT
EPAM Systems
EPAM
$6.57B
| $278K | ﹤0.01% |
+3,500
| New | +$370K |
2026 Q2
0 quarters
|
|
4499
PUT
Wayfair
W
$15.3B
| $277K | ﹤0.01% |
+3,000
| New | +$221K |
2026 Q2
0 quarters
|
|
4500
AerSale
ASLE
$227M
| $277K | ﹤0.01% |
43,778
-137,133
| -76% | -$896K |
2025 Q4
2 quarters
|
|
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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.