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 | |
|---|---|---|---|---|---|---|
|
BELFB
3251
Bel Fuse Inc Class B
BELFB
$3.69B
| $1.4M | ﹤0.01% |
4,217
-10,367
| -71% | -$2.8M |
|
3252
Primoris Services
PRIM
$4.15B
| $1.4M | ﹤0.01% |
+14,155
| New | +$1.86M |
|
3253
National Healthcare
NHC
$3.66B
| $1.4M | ﹤0.01% |
6,629
-76,168
| -92% | -$14M |
|
3254
TTEC Holdings
TTEC
$67.5M
| $1.39M | ﹤0.01% |
718,910
-149,419
| -17% | -$386K |
|
3255
PUT
GE HealthCare
GEHC
$33.8B
| $1.39M | ﹤0.01% |
+21,700
| New | +$1.43M |
|
|
SFBS
3256
ServisFirst Bancshares
SFBS
$4.74B
| $1.39M | ﹤0.01% |
32,022
-4,932
| -13% | -$195K |
|
3257
Quad
QUAD
$532M
| $1.39M | ﹤0.01% |
164,718
-127,082
| -44% | -$956K |
|
3258
First Trust Nasdaq-100 Select Equal Weight ETF
QQEW
$1.87B
| $1.39M | ﹤0.01% |
8,700
-49,700
| -85% | -$7.21M |
|
3259
CALL
Modine Manufacturing
MOD
$10.5B
| $1.39M | ﹤0.01% |
5,200
-10,000
| -66% | -$2.64M |
|
3260
CALL
American Express
AXP
$227B
| $1.39M | ﹤0.01% |
4,100
-2,900
| -41% | -$929K |
|
|
BCAX
3261
Bicara Therapeutics
BCAX
$1.58B
| $1.38M | ﹤0.01% |
46,606
-43,275
| -48% | -$966K |
|
3262
Enovix
ENVX
$742M
| $1.38M | ﹤0.01% |
226,791
+180,654
| +392% | +$1.2M |
|
3263
Invesco Dorsey Wright Energy Momentum ETF
PXI
$56.3M
| $1.38M | ﹤0.01% |
+25,000
| New | +$1.45M |
|
3264
PUT
Pool Corp
POOL
$6.83B
| $1.38M | ﹤0.01% |
6,400
+5,400
| +540% | +$1.08M |
|
3265
Archer Daniels Midland
ADM
$38.7B
| $1.38M | ﹤0.01% |
18,000
-74,016
| -80% | -$5.63M |
|
3266
PUT
Clorox
CLX
$12.9B
| $1.37M | ﹤0.01% |
14,400
+8,700
| +153% | +$835K |
|
3267
CALL
MasTec
MTZ
$21.4B
| $1.37M | ﹤0.01% |
+3,300
| New | +$1.26M |
|
3268
PUT
Diamondback Energy
FANG
$59B
| $1.37M | ﹤0.01% |
+7,800
| New | +$1.51M |
|
|
P
3269
PUT
Everpure Inc
P
$36.1B
| $1.37M | ﹤0.01% |
+17,400
| New | +$1.28M |
|
|
GRVY
3270
GRAVITY
GRVY
$495M
| $1.37M | ﹤0.01% |
20,414
+15,314
| +300% | +$956K |
|
3271
Etsy
ETSY
$7.44B
| $1.37M | ﹤0.01% |
18,191
-50,243
| -73% | -$3.24M |
|
|
EGHA
3272
EGH Acquisition Corp
EGHA
$213M
| $1.37M | ﹤0.01% |
133,132
-410,618
| -76% | -$4.22M |
|
|
AIRJ
3273
Montana Technologies Corp
AIRJ
$368M
| $1.37M | ﹤0.01% |
+247,255
| New | +$958K |
|
3274
Crescent Capital BDC
CCAP
$395M
| $1.37M | ﹤0.01% |
125,400
-178,154
| -59% | -$2.17M |
|
3275
Invesco S&P SmallCap 600 Revenue ETF
RWJ
$2.09B
| $1.37M | ﹤0.01% |
+23,000
| New | +$1.28M |
|
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.