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 | |
|---|---|---|---|---|---|---|
|
ETB
4201
Eaton Vance Tax-Managed Buy-Write Income Fund
ETB
$458M
| $422K | ﹤0.01% |
27,136
-13,997
| -34% | -$214K |
|
4202
Five Star Bancorp
FSBC
$1.11B
| $421K | ﹤0.01% |
8,643
-15,239
| -64% | -$642K |
|
4203
RE/MAX Holdings
RMAX
$290M
| $421K | ﹤0.01% |
42,664
-33,122
| -44% | -$289K |
|
4204
PUT
A.O. Smith
AOS
$8.57B
| $420K | ﹤0.01% |
6,700
+2,900
| +76% | +$176K |
|
4205
ARS Pharmaceuticals
SPRY
$547M
| $420K | ﹤0.01% |
+52,400
| New | +$451K |
|
4206
CALL
Red Cat Holdings
RCAT
$1.47B
| $420K | ﹤0.01% |
+39,400
| New | +$454K |
|
|
MREO
4207
Mereo BioPharma
MREO
$46.4M
| $419K | ﹤0.01% |
1,319,241
+1,131,402
| +602% | +$339K |
|
4208
California Water Service
CWT
$3.06B
| $419K | ﹤0.01% |
8,609
-68,367
| -89% | -$3.08M |
|
4209
PUT
Celanese
CE
$5.14B
| $419K | ﹤0.01% |
+9,100
| New | +$527K |
|
4210
Microvast
MVST
$309M
| $418K | ﹤0.01% |
357,038
-1,649,650
| -82% | -$2.54M |
|
4211
CALL
Best Buy
BBY
$18.1B
| $417K | ﹤0.01% |
5,500
-1,500
| -21% | -$99.6K |
|
4212
CEMIG Preferred Shares
CIG
$5.49B
| $417K | ﹤0.01% |
198,690
-332,664
| -63% | -$775K |
|
4213
PUT
Advance Auto Parts
AAP
$2.57B
| $417K | ﹤0.01% |
6,700
-2,300
| -26% | -$131K |
|
4214
CALL
Onto Innovation
ONTO
$17.9B
| $416K | ﹤0.01% |
1,100
-900
| -45% | -$255K |
|
4215
PUT
F5
FFIV
$21.8B
| $416K | ﹤0.01% |
+1,000
| New | +$355K |
|
|
FDIQ
4216
Invesco Bloomberg Financial Data Providers ETF
FDIQ
$50.5M
| $416K | ﹤0.01% |
6,500
+1,500
| +30% | +$104K |
|
4217
Zscaler
ZS
$29.4B
| $415K | ﹤0.01% |
2,940
-1,173,155
| -100% | -$164M |
|
4218
CALL
Canadian Natural Resources
CNQ
$106B
| $415K | ﹤0.01% |
+10,500
| New | +$477K |
|
4219
PUT
EQT Corp
EQT
$33.6B
| $415K | ﹤0.01% |
7,800
-3,200
| -29% | -$180K |
|
4220
Immix Biopharma
IMMX
$972M
| $414K | ﹤0.01% |
+40,181
| New | +$373K |
|
4221
Ceragon Networks
CRNT
$191M
| $414K | ﹤0.01% |
159,819
+108,388
| +211% | +$283K |
|
|
PDT
4222
John Hancock Premium Dividend Fund
PDT
$620M
| $414K | ﹤0.01% |
31,960
| – | – |
|
4223
CALL
KB Home
KBH
$3.39B
| $413K | ﹤0.01% |
6,600
-200
| -3% | -$10.4K |
|
4224
Public Service Enterprise Group
PEG
$36.2B
| $413K | ﹤0.01% |
+5,086
| New | +$406K |
|
4225
Planet Fitness
PLNT
$4.09B
| $413K | ﹤0.01% |
+7,907
| New | +$464K |
|
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.