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 | |
|---|---|---|---|---|---|---|
1601
Ondas Inc
ONDS
$4.97B
| $8.3M | 0.01% |
1,007,776
+92,184
| +10% | +$910K |
|
1602
Vanguard Energy ETF
VDE
$10.9B
| $8.3M | 0.01% |
+55,300
| New | +$8.96M |
|
1603
iShares MSCI South Korea ETF
EWY
$27.9B
| $8.3M | 0.01% |
41,105
-448,995
| -92% | -$79.3M |
|
1604
Newmark Group
NMRK
$2.94B
| $8.28M | 0.01% |
548,312
+97,492
| +22% | +$1.49M |
|
1605
Sempra
SRE
$54.2B
| $8.28M | 0.01% |
89,336
+48,751
| +120% | +$4.53M |
|
1606
Avery Dennison
AVY
$13.9B
| $8.28M | 0.01% |
51,004
+42,029
| +468% | +$6.84M |
|
|
KCHV
1607
Kochav Defense Acquisition Corp
KCHV
$357M
| $8.27M | 0.01% |
797,500
| – | – |
|
1608
AMC Global Media
AMCX
$511M
| $8.26M | 0.01% |
827,948
-14,400
| -2% | -$128K |
|
1609
Vanda Pharmaceuticals
VNDA
$319M
| $8.26M | 0.01% |
1,349,072
-49,129
| -4% | -$321K |
|
|
CBC
1610
Central Bancompany Inc
CBC
$7.65B
| $8.24M | 0.01% |
271,281
-57,640
| -18% | -$1.57M |
|
1611
Fulgent Genetics
FLGT
$548M
| $8.23M | 0.01% |
400,986
+78,797
| +24% | +$1.34M |
|
|
BLUW
1612
Blue Water Acquisition Corp III
BLUW
$335M
| $8.22M | 0.01% |
797,500
| – | – |
|
1613
CALL
Fabrinet
FN
$15.6B
| $8.21M | 0.01% |
14,600
+10,500
| +256% | +$6.77M |
|
|
OYSE
1614
Oyster Enterprises II Acquisition Corp
OYSE
| $8.21M | 0.01% |
797,500
| – | – |
|
|
TBN
1615
Tamboran Resources
TBN
$1.32B
| $8.2M | 0.01% |
252,249
+99,267
| +65% | +$3.55M |
|
|
HCMA
1616
HCM III Acquisition Corp
HCMA
| $8.2M | 0.01% |
797,500
| – | – |
|
1617
Vital Farms
VITL
$454M
| $8.17M | 0.01% |
702,843
-961,632
| -58% | -$10.7M |
|
1618
Titan International
TWI
$461M
| $8.16M | 0.01% |
1,058,716
+253,397
| +31% | +$1.95M |
|
|
PACH
1619
Pioneer Acquisition I Corp
PACH
$293M
| $8.16M | 0.01% |
797,500
| – | – |
|
1620
CALL
Super Micro Computer
SMCI
$24.1B
| $8.13M | 0.01% |
277,100
-175,900
| -39% | -$5.6M |
|
1621
Avient
AVNT
$4.1B
| $8.12M | 0.01% |
219,736
+146,487
| +200% | +$5.3M |
|
1622
Rigel Pharmaceuticals
RIGL
$857M
| $8.12M | 0.01% |
207,578
-198,229
| -49% | -$6.11M |
|
1623
Hovnanian Enterprises
HOV
$770M
| $8.11M | 0.01% |
56,963
-13,385
| -19% | -$1.53M |
|
|
MCHB
1624
Mechanics Bancorp
MCHB
$3.59B
| $8.06M | 0.01% |
507,019
+357,462
| +239% | +$5.36M |
|
1625
Spectrum Brands
SPB
$2B
| $8.06M | 0.01% |
93,993
-59,536
| -39% | -$4.82M |
|
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.