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 | |
|---|---|---|---|---|---|---|
801
Harmonic Inc
HLIT
$1.31B
| $28.3M | 0.02% |
1,733,447
+1,563,536
| +920% | +$19.9M |
|
802
CALL
Tesla
TSLA
$1.38T
| $28.2M | 0.02% |
67,100
-33,800
| -33% | -$13.4M |
|
803
Genco Shipping & Trading
GNK
$1.17B
| $28.2M | 0.02% |
1,138,225
-12,487
| -1% | -$301K |
|
804
Kyndryl
KD
$2.82B
| $28.2M | 0.02% |
2,492,683
+1,960,383
| +368% | +$24.4M |
|
805
Cohen & Steers
CNS
$4.27B
| $28.2M | 0.02% |
369,895
-51,094
| -12% | -$3.61M |
|
806
RELX
RELX
$63.6B
| $28.1M | 0.02% |
886,341
-437,470
| -33% | -$14.8M |
|
807
Capital Southwest
CSWC
$1.61B
| $28.1M | 0.02% |
1,180,391
-1,169,257
| -50% | -$27.4M |
|
808
Apogee Enterprises
APOG
$863M
| $28M | 0.02% |
611,671
+45,737
| +8% | +$1.71M |
|
809
Chemours
CC
$2.32B
| $28M | 0.02% |
1,362,389
+367,686
| +37% | +$8.42M |
|
810
PUT
Eli Lilly
LLY
$1.11T
| $27.9M | 0.02% |
23,300
+19,600
| +530% | +$20M |
|
811
Nabors Industries
NBR
$1.31B
| $27.9M | 0.02% |
331,585
-61,623
| -16% | -$5.73M |
|
812
Zoetis
ZTS
$32.1B
| $27.8M | 0.02% |
386,428
+244,128
| +172% | +$23M |
|
|
813
CALL
Goldman Sachs
GS
$302B
| $27.7M | 0.02% |
27,400
+3,400
| +14% | +$3.31M |
|
814
Nomad Foods
NOMD
$1.7B
| $27.7M | 0.02% |
2,526,407
+422,332
| +20% | +$4.2M |
|
815
Advanced Energy
AEIS
$11B
| $27.6M | 0.02% |
+74,131
| New | +$25.9M |
|
816
GFL Environmental
GFL
$15B
| $27.6M | 0.02% |
750,830
-26,612
| -3% | -$1.01M |
|
817
Lamar Advertising Co
LAMR
$15.4B
| $27.6M | 0.02% |
176,973
-140,370
| -44% | -$20.3M |
|
|
OPLN
818
Openlane
OPLN
$4.13B
| $27.5M | 0.02% |
665,872
-215,341
| -24% | -$7.53M |
|
819
Casey's General Stores
CASY
$31.5B
| $27.4M | 0.02% |
34,536
+30,716
| +804% | +$24.7M |
|
820
Jacobs Solutions
J
$17.7B
| $27.4M | 0.02% |
217,288
-601,155
| -73% | -$73.9M |
|
821
Encore Capital Group
ECPG
$2.18B
| $27.4M | 0.02% |
293,274
+10,295
| +4% | +$838K |
|
822
SunCoke Energy
SXC
$820M
| $27.3M | 0.02% |
3,395,843
+2,515,183
| +286% | +$19.4M |
|
823
Kratos Defense & Security Solutions
KTOS
$10B
| $27.3M | 0.02% |
546,984
+540,122
| +7,871% | +$32.7M |
|
824
CALL
ASML
ASML
$674B
| $27.3M | 0.02% |
13,700
+7,700
| +128% | +$12.3M |
|
825
BioNTech
BNTX
$28.5B
| $27.2M | 0.02% |
292,614
+126,435
| +76% | +$11.9M |
|
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.