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 | |
|---|---|---|---|---|---|---|
1501
Clear Secure
YOU
$4.46B
| $9.38M | 0.01% |
168,306
-263,724
| -61% | -$14.4M |
|
1502
TORM
TRMD
$3.26B
| $9.38M | 0.01% |
359,787
+52,636
| +17% | +$1.59M |
|
1503
CALL
Marathon Petroleum
MPC
$101B
| $9.36M | 0.01% |
36,600
+20,600
| +129% | +$5.06M |
|
1504
W&T Offshore
WTI
$592M
| $9.33M | 0.01% |
2,961,478
-2,176,627
| -42% | -$8.07M |
|
1505
Deere & Co
DE
$175B
| $9.32M | 0.01% |
14,697
| – | – |
|
1506
IQVIA
IQV
$42.8B
| $9.31M | 0.01% |
48,191
-171,793
| -78% | -$30M |
|
1507
RingCentral
RNG
$5.6B
| $9.31M | 0.01% |
238,762
-84,159
| -26% | -$3.4M |
|
1508
IDT Corp
IDT
$1.69B
| $9.3M | 0.01% |
159,819
-19,678
| -11% | -$1.04M |
|
1509
PUT
Datadog
DDOG
$84.6B
| $9.29M | 0.01% |
35,700
+30,700
| +614% | +$5.71M |
|
1510
PUT
Western Digital
WDC
$166B
| $9.26M | 0.01% |
14,500
+900
| +7% | +$438K |
|
1511
Equitable Holdings
EQH
$13.3B
| $9.25M | 0.01% |
210,911
+147,411
| +232% | +$6.16M |
|
|
KFII
1512
K&F Growth Acquisition Corp II
KFII
$417M
| $9.25M | 0.01% |
876,886
| – | – |
|
1513
State Street SPDR Portfolio S&P 500 Growth ETF
SPYG
$54.3B
| $9.25M | 0.01% |
77,700
-305,700
| -80% | -$34.9M |
|
1514
Costamare
CMRE
$1.89B
| $9.24M | 0.01% |
659,051
+70,372
| +12% | +$1.15M |
|
1515
Emcor
EME
$34.3B
| $9.24M | 0.01% |
11,133
-201
| -2% | -$170K |
|
|
AVB
1516
DELISTED
AvalonBay Communities
AVB
| $9.22M | 0.01% |
48,882
-140,953
| -74% | -$25.5M |
|
1517
Vanguard S&P Mid-Cap 400 ETF
IVOO
$3.87B
| $9.21M | 0.01% |
+70,617
| New | +$8.77M |
|
1518
CALL
Vertiv
VRT
$101B
| $9.21M | 0.01% |
27,500
+3,500
| +15% | +$1.11M |
|
1519
Axcelis
ACLS
$3.92B
| $9.18M | 0.01% |
48,437
-149,129
| -75% | -$22.1M |
|
1520
Peapack-Gladstone Financial
PGC
$808M
| $9.16M | 0.01% |
193,594
-13,451
| -6% | -$569K |
|
1521
Middlesex Water
MSEX
$1.1B
| $9.15M | 0.01% |
163,002
+97,485
| +149% | +$5.13M |
|
1522
Dycom Industries
DY
$11.8B
| $9.15M | 0.01% |
+18,090
| New | +$7.91M |
|
1523
Cerence
CRNC
$365M
| $9.14M | 0.01% |
807,773
-354,015
| -30% | -$3.47M |
|
1524
Diodes
DIOD
$4.33B
| $9.1M | 0.01% |
83,166
-137,849
| -62% | -$14M |
|
|
WYFI
1525
WhiteFiber Inc
WYFI
$805M
| $9.1M | 0.01% |
+234,172
| New | +$5.66M |
|
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.