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 | |
|---|---|---|---|---|---|---|
976
Fidelity Enhanced Large Cap Growth ETF
FELG
$5.67B
| $21.2M | 0.02% |
+485,600
| New | +$20.7M |
|
977
Satellogic
SATL
$812M
| $21.1M | 0.02% |
3,688,871
+3,094,247
| +520% | +$22.7M |
|
978
Dimensional US Marketwide Value ETF
DFUV
$15.9B
| $21.1M | 0.02% |
+383,500
| New | +$20.1M |
|
979
AMERISAFE
AMSF
$490M
| $21.1M | 0.02% |
623,473
+148,234
| +31% | +$4.69M |
|
|
980
CALL
Dell
DELL
$280B
| $21M | 0.02% |
48,600
+23,700
| +95% | +$6.85M |
|
981
HCI Group
HCI
$2.31B
| $20.9M | 0.02% |
119,320
+19,983
| +20% | +$3.15M |
|
982
Invesco Semiconductors ETF
PSI
$2.39B
| $20.9M | 0.02% |
+111,300
| New | +$16M |
|
983
State Street SPDR S&P Oil & Gas Equipment & Services ETF
XES
$379M
| $20.9M | 0.02% |
186,390
+118,200
| +173% | +$14.4M |
|
984
Ero Copper
ERO
$4.02B
| $20.9M | 0.02% |
780,782
-151,101
| -16% | -$4.28M |
|
985
Energizer
ENR
$1.47B
| $20.9M | 0.02% |
973,966
+663,376
| +214% | +$12.6M |
|
986
Heartland Express
HTLD
$967M
| $20.9M | 0.02% |
1,371,702
-68,432
| -5% | -$927K |
|
987
Theravance Biopharma
TBPH
$883M
| $20.8M | 0.02% |
1,225,587
-32,910
| -3% | -$545K |
|
988
Pegasystems
PEGA
$5.64B
| $20.8M | 0.02% |
693,835
+650,595
| +1,505% | +$23.3M |
|
|
HPE.PRC
989
Hewlett Packard Enterprise 7.625% Series C Preferred Stock
HPE.PRC
$4.01B
| $20.7M | 0.02% |
179,126
-1,158,559
| -87% | -$110M |
|
990
National Beverage
FIZZ
$3.1B
| $20.7M | 0.02% |
663,792
+67,233
| +11% | +$2.34M |
|
991
Thomson Reuters
TRI
$47.1B
| $20.7M | 0.02% |
253,513
-148,400
| -37% | -$13M |
|
992
Astronics
ATRO
$3.21B
| $20.7M | 0.02% |
254,758
-5,314
| -2% | -$363K |
|
|
ZBIO
993
Zenas BioPharma
ZBIO
$2.06B
| $20.7M | 0.02% |
815,150
+540,094
| +196% | +$10.7M |
|
994
Teekay Tankers
TNK
$3.19B
| $20.7M | 0.02% |
318,893
+222,904
| +232% | +$16.8M |
|
|
USAS
995
Americas Gold and Silver
USAS
$1.82B
| $20.6M | 0.01% |
4,372,111
-210,252
| -5% | -$1.21M |
|
996
First Merchants
FRME
$2.63B
| $20.6M | 0.01% |
470,409
+64,857
| +16% | +$2.63M |
|
997
Forum Energy Technologies
FET
$855M
| $20.5M | 0.01% |
408,252
+82,120
| +25% | +$4.58M |
|
998
TriMas Corp
TRS
$1.42B
| $20.4M | 0.01% |
453,425
-16,966
| -4% | -$675K |
|
999
PUT
GE Aerospace
GE
$355B
| $20.4M | 0.01% |
54,500
+32,500
| +148% | +$10.2M |
|
|
KEEL
1000
Keel Infrastructure Corp
KEEL
$2.01B
| $20.4M | 0.01% |
3,546,260
+1,614,512
| +84% | +$6.93M |
|
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.