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 |
NVIDIA
NVDA
|
+$1.84B |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$1.38B |
| 3 |
Apple
AAPL
|
+$1.31B |
| 4 |
Amazon
AMZN
|
+$1.14B |
| 5 |
Tesla
TSLA
|
+$966M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amgen
AMGN
|
+$224M |
| 2 |
VanEck Semiconductor ETF
SMH
|
+$216M |
| 3 |
Procter & Gamble
PG
|
+$215M |
| 4 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$212M |
| 5 |
Eaton
ETN
|
+$197M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 18.76% |
| 2 | Financials | 13.52% |
| 3 | Healthcare | 11.32% |
| 4 | Industrials | 11.3% |
| 5 | Consumer Discretionary | 10.01% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3976
America's Car Mart
CRMT
$19.2M
| $307K | ﹤0.01% |
24,123
-28,614
| -54% | -$610K |
|
3977
PUT
Omega Healthcare
OHI
$14.1B
| $307K | ﹤0.01% |
+7,000
| New | +$319K |
|
3978
PUT
Republic Services
RSG
$68.3B
| $307K | ﹤0.01% |
+1,400
| New | +$307K |
|
3979
CALL
Novartis
NVS
$300B
| $306K | ﹤0.01% |
2,000
-1,000
| -33% | -$153K |
|
3980
CALL
Cracker Barrel
CBRL
$1.3B
| $304K | ﹤0.01% |
+10,800
| New | +$329K |
|
3981
Alico
ALCO
$306M
| $302K | ﹤0.01% |
+7,330
| New | +$291K |
|
3982
Dr. Reddy's Laboratories
RDY
$10.2B
| $302K | ﹤0.01% |
+21,800
| New | +$303K |
|
|
MCN
3983
Madison Covered Call & Equity Strategy Fund
MCN
$119M
| $301K | ﹤0.01% |
51,709
+36,137
| +232% | +$217K |
|
3984
CALL
American International
AIG
$40.5B
| $301K | ﹤0.01% |
+4,000
| New | +$306K |
|
3985
Virco
VIRC
$94.2M
| $301K | ﹤0.01% |
49,136
+28,313
| +136% | +$179K |
|
3986
Ardmore Shipping
ASC
$746M
| $300K | ﹤0.01% |
+19,700
| New | +$271K |
|
3987
Invesco International Dividend Achievers ETF
PID
$918M
| $300K | ﹤0.01% |
+13,500
| New | +$307K |
|
3988
Phreesia
PHR
$723M
| $300K | ﹤0.01% |
+35,800
| New | +$474K |
|
3989
CALL
Constellation Brands
STZ
$23.5B
| $300K | ﹤0.01% |
2,000
-3,000
| -60% | -$463K |
|
3990
CALL
Maplebear
CART
$12B
| $300K | ﹤0.01% |
8,000
-900
| -10% | -$34.1K |
|
3991
CALL
Lithia Motors
LAD
$8.1B
| $300K | ﹤0.01% |
+1,200
| New | +$356K |
|
3992
PUT
Lam Research
LRCX
$388B
| $299K | ﹤0.01% |
1,400
-4,600
| -77% | -$1.03M |
|
|
OPRA
3993
Opera Ltd
OPRA
$1.69B
| $298K | ﹤0.01% |
+20,900
| New | +$289K |
|
|
SVCO
3994
Silvaco Group
SVCO
$232M
| $297K | ﹤0.01% |
+41,933
| New | +$189K |
|
3995
Invesco AI and Next Gen Software ETF
IGPT
$1.19B
| $296K | ﹤0.01% |
5,100
-47,600
| -90% | -$2.97M |
|
3996
CALL
CME Group
CME
$100B
| $295K | ﹤0.01% |
+1,000
| New | +$297K |
|
|
3997
PUT
CME Group
CME
$100B
| $295K | ﹤0.01% |
+1,000
| New | +$297K |
|
3998
PUT
BJs Wholesale Club
BJ
$12.6B
| $295K | ﹤0.01% |
3,000
-1,000
| -25% | -$96.5K |
|
|
ECHO
3999
EchoStar
ECHO
$24.8B
| $295K | ﹤0.01% |
+2,517
| New | +$289K |
|
4000
CALL
Hubbell
HUBB
$24.7B
| $294K | ﹤0.01% |
+600
| New | +$295K |
|
Similar funds
John Overdeck's Q1 2026 Portfolio in Review
As of Q1 2026, John Overdeck held 5,070 positions worth $124B, up 75% from $70.9B the previous quarter. Its ten largest holdings account for 9.4% of the portfolio.
John Overdeck deployed $54.2B of net new capital in Q1 2026, opening 1,038 new positions and adding to 2,050 existing holdings. Its largest new stake was Broadcom: 2,225,253 shares worth $689M.
By sector, the portfolio is most concentrated in Technology at 19% of assets, up from 16% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was Amgen, an estimated $224M trimmed.
- John Overdeck's largest Q1 2026 buy was Broadcom: 2,225,253 shares worth $689M.
- John Overdeck added most to NVIDIA in Q1 2026, an estimated $1.84B increase.
- John Overdeck's biggest Q1 2026 reduction was Amgen, cutting an estimated $224M.
- John Overdeck fully exited First Trust Dow Jones Internet Index Fund ETF in Q1 2026, selling an estimated $82.2M.
- John Overdeck's ten largest holdings make up 9.4% of its $124B portfolio in Q1 2026.
- John Overdeck opened 1,038 new positions and closed 524 in Q1 2026.
- John Overdeck's portfolio value rose 75% quarter-over-quarter to $124B.
Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.