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 | |
|---|---|---|---|---|---|---|
76
Valero Energy
VLO
$100B
| $334M | 0.24% |
1,283,485
+592,325
| +86% | +$146M |
|
77
Fortinet
FTNT
$113B
| $334M | 0.24% |
2,171,408
+1,047,009
| +93% | +$121M |
|
78
Rivian
RIVN
$24.6B
| $333M | 0.24% |
19,178,109
+9,624,687
| +101% | +$150M |
|
79
HubSpot
HUBS
$12B
| $332M | 0.24% |
1,819,744
+475,123
| +35% | +$99.3M |
|
80
PG&E
PCG
$38.8B
| $328M | 0.24% |
19,512,052
+12,454,879
| +176% | +$210M |
|
81
Mercado Libre
MELI
$97.5B
| $318M | 0.23% |
187,255
+158,439
| +550% | +$271M |
|
82
Marathon Petroleum
MPC
$101B
| $317M | 0.23% |
1,239,241
-285,045
| -19% | -$70M |
|
83
L3Harris
LHX
$49.7B
| $312M | 0.23% |
1,075,122
+468,735
| +77% | +$149M |
|
84
State Street Energy Select Sector SPDR ETF
XLE
$41.7B
| $309M | 0.22% |
+5,819,502
| New | +$333M |
|
85
CarMax
KMX
$8.82B
| $308M | 0.22% |
5,831,970
+484,873
| +9% | +$21.1M |
|
86
Verisk Analytics
VRSK
$24.4B
| $308M | 0.22% |
1,717,969
+142,556
| +9% | +$25.1M |
|
87
Trade Desk
TTD
$6.19B
| $308M | 0.22% |
17,050,857
+2,889,536
| +20% | +$61.4M |
|
88
Hormel Foods
HRL
$13.1B
| $306M | 0.22% |
12,325,712
+338,984
| +3% | +$7.54M |
|
|
SPCX
89
SpaceX
SPCX
$1.81T
| $303M | 0.22% |
+1,775,121
| New | +$302M |
|
90
iShares Biotechnology ETF
IBB
$10.7B
| $302M | 0.22% |
1,588,107
+1,030,300
| +185% | +$177M |
|
91
RBC Bearings
RBC
$16B
| $301M | 0.22% |
467,098
+182,011
| +64% | +$108M |
|
|
SOLS
92
Solstice Advanced Materials
SOLS
$8.92B
| $297M | 0.22% |
3,355,801
+905,732
| +37% | +$74.7M |
|
93
Waste Management
WM
$89.6B
| $297M | 0.22% |
1,333,794
-705,400
| -35% | -$157M |
|
94
DigitalOcean
DOCN
$13.6B
| $296M | 0.21% |
1,886,632
+1,697,290
| +896% | +$230M |
|
95
GoDaddy
GDDY
$12.3B
| $296M | 0.21% |
3,485,477
-34,370
| -1% | -$2.9M |
|
96
Insulet
PODD
$10.3B
| $290M | 0.21% |
1,903,734
+1,141,385
| +150% | +$190M |
|
97
Molina Healthcare
MOH
$10.5B
| $290M | 0.21% |
1,266,338
-84,357
| -6% | -$15.3M |
|
98
Five Below
FIVE
$13.8B
| $289M | 0.21% |
1,605,648
+171,403
| +12% | +$36.9M |
|
99
Super Micro Computer
SMCI
$24.1B
| $287M | 0.21% |
9,783,845
+8,876,913
| +979% | +$283M |
|
100
TeraWulf
WULF
$7.8B
| $284M | 0.21% |
11,495,860
+3,658,763
| +47% | +$84.1M |
|
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.