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 | |
|---|---|---|---|---|---|---|
176
Occidental Petroleum
OXY
$61.3B
| $174M | 0.13% |
3,576,936
+28,311
| +0.8% | +$1.61M |
|
177
Southern Copper
SCCO
$182B
| $173M | 0.13% |
1,003,878
+143,498
| +17% | +$25.8M |
|
178
argenx
ARGX
$65B
| $172M | 0.12% |
185,638
+76,517
| +70% | +$63.1M |
|
179
Portland General Electric
POR
$5.83B
| $170M | 0.12% |
3,275,901
+234,982
| +8% | +$11.9M |
|
180
Royal Bank of Canada
RY
$285B
| $170M | 0.12% |
819,618
+88,027
| +12% | +$16.3M |
|
181
Datadog
DDOG
$84.6B
| $169M | 0.12% |
649,467
+525,824
| +425% | +$97.7M |
|
182
Veeva Systems
VEEV
$40.3B
| $167M | 0.12% |
943,507
-880,492
| -48% | -$145M |
|
183
Canadian National Railway
CNI
$78.5B
| $167M | 0.12% |
1,398,413
+974,828
| +230% | +$111M |
|
184
Axsome Therapeutics
AXSM
$10.9B
| $164M | 0.12% |
669,478
+346,700
| +107% | +$75.2M |
|
|
SMCIP
185
Super Micro Computer Depositary Shares 7% Series A Preferred Stock
SMCIP
$4.72B
| $164M | 0.12% |
+3,153,643
| New | +$169M |
|
186
Royalty Pharma
RPRX
$27.3B
| $164M | 0.12% |
2,920,163
+668,638
| +30% | +$34.8M |
|
187
UiPath
PATH
$8.49B
| $163M | 0.12% |
15,034,443
+11,475,054
| +322% | +$123M |
|
188
Arista Networks
ANET
$238B
| $162M | 0.12% |
955,255
-2,803,024
| -75% | -$440M |
|
189
Automatic Data Processing
ADP
$112B
| $161M | 0.12% |
720,106
-562,131
| -44% | -$120M |
|
190
Jefferies Financial Group
JEF
$12.1B
| $160M | 0.12% |
3,205,077
+380,024
| +13% | +$19.6M |
|
191
Tower Semiconductor
TSEM
$25.2B
| $159M | 0.12% |
611,924
+602,324
| +6,274% | +$144M |
|
|
SEI
192
Solaris Energy Infrastructure
SEI
$3.51B
| $159M | 0.12% |
1,979,861
+38,315
| +2% | +$2.74M |
|
193
Sterling Infrastructure
STRL
$15.8B
| $159M | 0.11% |
189,003
+176,225
| +1,379% | +$124M |
|
|
B
194
Barrick Mining
B
$78.3B
| $158M | 0.11% |
4,311,385
-3,012,451
| -41% | -$123M |
|
195
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.93B
| $158M | 0.11% |
1,025,389
+590,265
| +136% | +$98.8M |
|
196
Kodiak Gas Services
KGS
$6.21B
| $158M | 0.11% |
2,103,821
+306,833
| +17% | +$20.9M |
|
197
Unum
UNM
$13.9B
| $157M | 0.11% |
1,759,799
+235,071
| +15% | +$19.5M |
|
198
Aflac
AFL
$58.2B
| $157M | 0.11% |
1,340,935
+862,200
| +180% | +$99.3M |
|
199
Tyson Foods
TSN
$20.6B
| $155M | 0.11% |
2,713,810
+657,937
| +32% | +$41.2M |
|
|
GOOGN
200
Alphabet Inc Depositary Shares Series B Preferred Stock
GOOGN
| $155M | 0.11% |
+3,081,123
| New | +$154M |
|
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.