John Overdeck Two Sigma Investments
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.
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 |
SNDK
Sandisk
SNDK
|
+$744M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
4551
CALL
NOV
NOV
$7.28B
| $254K | ﹤0.01% |
+13,700
| New | +$273K |
|
4552
Actinium Pharmaceuticals
ATNM
$34.5M
| $254K | ﹤0.01% |
259,179
-77,989
| -23% | -$90.1K |
|
4553
PUT
Alexandria Real Estate Equities
ARE
$9.21B
| $254K | ﹤0.01% |
+4,800
| New | +$230K |
|
4554
Timberland Bancorp
TSBK
$362M
| $254K | ﹤0.01% |
+5,659
| New | +$234K |
|
4555
Pyxis Oncology
PYXS
$257M
| $253K | ﹤0.01% |
83,961
+10,661
| +15% | +$20.4K |
|
4556
American Battery Technology Co
ABAT
$351M
| $252K | ﹤0.01% |
88,897
-118,744
| -57% | -$380K |
|
4557
CALL
Alaska Air
ALK
$4.51B
| $251K | ﹤0.01% |
+4,800
| New | +$205K |
|
4558
PUT
Unum
UNM
$13.9B
| $250K | ﹤0.01% |
+2,800
| New | +$232K |
|
4559
Verrica Pharmaceuticals
VRCA
$82.8M
| $250K | ﹤0.01% |
40,825
-9,837
| -19% | -$61.3K |
|
4560
PUT
Welltower
WELL
$172B
| $250K | ﹤0.01% |
1,100
-1,500
| -58% | -$317K |
|
4561
Coastal Financial
CCB
$707M
| $249K | ﹤0.01% |
3,213
-587
| -15% | -$44.1K |
|
|
PONY
4562
CALL
Pony AI Inc
PONY
$3.58B
| $248K | ﹤0.01% |
+35,700
| New | +$331K |
|
4563
CALL
Peabody Energy
BTU
$3.37B
| $247K | ﹤0.01% |
10,700
-22,300
| -68% | -$593K |
|
4564
PUT
Harley-Davidson
HOG
$2.93B
| $247K | ﹤0.01% |
+10,100
| New | +$243K |
|
4565
UNIFI
UFI
$149M
| $246K | ﹤0.01% |
51,776
-700
| -1% | -$2.79K |
|
4566
SoundThinking
SSTI
$81.2M
| $245K | ﹤0.01% |
27,127
-4,762
| -15% | -$34K |
|
4567
CALL
LKQ Corp
LKQ
$6.52B
| $245K | ﹤0.01% |
9,300
+1,100
| +13% | +$30.6K |
|
4568
CALL
DaVita
DVA
$11.1B
| $245K | ﹤0.01% |
1,100
-600
| -35% | -$109K |
|
4569
AC Immune
ACIU
$288M
| $245K | ﹤0.01% |
102,825
+63,734
| +163% | +$176K |
|
|
4570
CALL
Harley-Davidson
HOG
$2.93B
| $245K | ﹤0.01% |
+10,000
| New | +$240K |
|
|
SSMR
4571
Sunshine Silver Mining & Refining Company
SSMR
$2.68B
| $245K | ﹤0.01% |
+18,500
| New | +$262K |
|
4572
iShares Core S&P US Growth ETF
IUSG
$33.2B
| $245K | ﹤0.01% |
1,300
-237,700
| -99% | -$42.9M |
|
|
HTT
4573
High Templar Tech Ltd
HTT
$388M
| $244K | ﹤0.01% |
95,321
-181,513
| -66% | -$473K |
|
4574
Mettler-Toledo International
MTD
$28B
| $244K | ﹤0.01% |
191
-1,709
| -90% | -$2.06M |
|
4575
Stellus Capital Investment Corp
SCM
$246M
| $243K | ﹤0.01% |
28,812
-168,434
| -85% | -$1.54M |
|
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 $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.