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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 | |
|---|---|---|---|---|---|---|---|
3701
iShares US Healthcare Providers ETF
IHF
$1.43B
| $804K | ﹤0.01% |
14,522
-362,300
| -96% | -$17.9M |
2026 Q1
1 quarter
|
|
3702
PUT
Rubrik
RBRK
$23.8B
| $803K | ﹤0.01% |
+10,000
| New | +$629K |
2026 Q2
0 quarters
|
|
3703
PUT
Enbridge
ENB
$107B
| $802K | ﹤0.01% |
14,800
+10,700
| +261% | +$587K |
2026 Q1
1 quarter
|
|
3704
CALL
TG Therapeutics
TGTX
$8.35B
| $802K | ﹤0.01% |
+14,600
| New | +$598K |
2026 Q2
0 quarters
|
|
3705
Cannae Holdings
CNNE
$700M
| $802K | ﹤0.01% |
55,700
+6,200
| +13% | +$84.3K |
2026 Q1
1 quarter
|
|
3706
CALL
Fidelity National Information Services
FIS
$18.8B
| $801K | ﹤0.01% |
+20,600
| New | +$891K |
2026 Q2
0 quarters
|
|
3707
PUT
Cintas
CTAS
$86.2B
| $799K | ﹤0.01% |
+4,700
| New | +$813K |
2026 Q2
0 quarters
|
|
3708
PUT
Domino's
DPZ
$10.4B
| $799K | ﹤0.01% |
2,700
+1,700
| +170% | +$559K |
2026 Q1
1 quarter
|
|
3709
CALL
TransDigm Group
TDG
$63.2B
| $799K | ﹤0.01% |
+600
| New | +$737K |
2026 Q2
0 quarters
|
|
3710
CALL
Molson Coors Class B
TAP
$7.5B
| $799K | ﹤0.01% |
+20,500
| New | +$856K |
2026 Q2
0 quarters
|
|
3711
Ares Commercial Real Estate
ACRE
$183M
| $798K | ﹤0.01% |
177,410
-74,669
| -30% | -$368K |
2024 Q2
8 quarters
|
|
3712
Similarweb
SMWB
$788M
| $796K | ﹤0.01% |
129,851
+50,775
| +64% | +$185K |
2026 Q1
1 quarter
|
|
3713
Haemonetics
HAE
$5.38B
| $794K | ﹤0.01% |
10,589
-1,111
| -9% | -$71.4K |
2026 Q1
1 quarter
|
|
3714
PicS N.V.
PICS
$1.83B
| $793K | ﹤0.01% |
74,589
-84,115
| -53% | -$955K |
2026 Q1
1 quarter
|
|
3715
CALL
AngloGold Ashanti
AU
$45.9B
| $793K | ﹤0.01% |
9,800
+3,700
| +61% | +$351K |
2026 Q1
1 quarter
|
|
3716
CALL
PennyMac Financial
PFSI
$3.13B
| $793K | ﹤0.01% |
+9,100
| New | +$791K |
2026 Q2
0 quarters
|
|
3717
Cardiol Therapeutics
CRDL
$140M
| $792K | ﹤0.01% |
746,937
+212,726
| +40% | +$269K |
2025 Q3
3 quarters
|
|
3718
Kimball Electronics
KE
$628M
| $790K | ﹤0.01% |
30,875
-11,855
| -28% | -$304K |
2022 Q4
14 quarters
|
|
3719
Goldgroup Mining
GORO
$576M
| $788K | ﹤0.01% |
156,321
-276,517
| -64% | -$1.51M |
2023 Q2
12 quarters
|
|
3720
Electrovaya
ELVA
$267M
| $786K | ﹤0.01% |
74,861
-46,911
| -39% | -$465K |
2025 Q4
2 quarters
|
|
3721
CALL
Trane Technologies
TT
$102B
| $786K | ﹤0.01% |
+1,600
| New | +$748K |
2026 Q2
0 quarters
|
|
3722
PUT
Fluor
FLR
$6.04B
| $786K | ﹤0.01% |
15,000
+10,500
| +233% | +$514K |
2025 Q4
2 quarters
|
|
3723
National Vision
EYE
$1.42B
| $785K | ﹤0.01% |
41,300
-1,900
| -4% | -$38.7K |
2026 Q1
1 quarter
|
|
3724
CALL
HubSpot
HUBS
$12.5B
| $785K | ﹤0.01% |
+4,300
| New | +$899K |
2026 Q2
0 quarters
|
|
3725
PUT
Zimmer Biomet
ZBH
$18.3B
| $783K | ﹤0.01% |
9,100
+3,100
| +52% | +$272K |
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.