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 | |
|---|---|---|---|---|---|---|
2051
Canadian Imperial Bank of Commerce
CM
$105B
| $4.19M | ﹤0.01% |
+44,200
| New | +$4.23M |
|
2052
Perspective Therapeutics
CATX
$376M
| $4.18M | ﹤0.01% |
1,003,474
-195,170
| -16% | -$825K |
|
2053
PennyMac Financial
PFSI
$3.85B
| $4.18M | ﹤0.01% |
47,824
-165,347
| -78% | -$17.8M |
|
|
APC
2054
ARKO Petroleum
APC
$896M
| $4.18M | ﹤0.01% |
+233,438
| New | +$4.32M |
|
2055
M-tron Industries
MPTI
$346M
| $4.18M | ﹤0.01% |
62,463
+40,917
| +190% | +$2.61M |
|
2056
Diebold Nixdorf
DBD
$2.3B
| $4.16M | ﹤0.01% |
55,177
-23,512
| -30% | -$1.73M |
|
2057
Fate Therapeutics
FATE
$306M
| $4.16M | ﹤0.01% |
3,466,786
+1,732,722
| +100% | +$2.11M |
|
|
AVBC
2058
Avidia Bancorp
AVBC
$405M
| $4.15M | ﹤0.01% |
211,122
+53,000
| +34% | +$975K |
|
2059
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$284M
| $4.15M | ﹤0.01% |
79,385
-87,395
| -52% | -$3.63M |
|
2060
PUT
Marathon Petroleum
MPC
$99.7B
| $4.15M | ﹤0.01% |
17,000
+15,000
| +750% | +$3.03M |
|
2061
Genpact
G
$6.26B
| $4.14M | ﹤0.01% |
+111,215
| New | +$4.58M |
|
2062
Stock Yards Bancorp
SYBT
$2.49B
| $4.14M | ﹤0.01% |
62,458
+48,420
| +345% | +$3.23M |
|
|
OIM
2063
OneIM Acquisition Corp
OIM
$366M
| $4.14M | ﹤0.01% |
+415,363
| New | +$4.16M |
|
2064
Caledonia Mining Corp
CMCL
$489M
| $4.13M | ﹤0.01% |
182,974
+170,474
| +1,364% | +$4.75M |
|
2065
Bankwell Financial Group
BWFG
$524M
| $4.13M | ﹤0.01% |
85,070
+16,991
| +25% | +$811K |
|
2066
Commercial Vehicle Group
CVGI
$126M
| $4.13M | ﹤0.01% |
1,210,028
+951,988
| +369% | +$1.96M |
|
2067
Choiceone Financial
COFS
$497M
| $4.12M | ﹤0.01% |
146,679
-35,885
| -20% | -$1.03M |
|
2068
SSR Mining
SSRM
$8B
| $4.12M | ﹤0.01% |
140,082
-190,937
| -58% | -$5.06M |
|
|
XYZ
2069
Block Inc
XYZ
$49.7B
| $4.12M | ﹤0.01% |
68,400
+3,000
| +5% | +$182K |
|
2070
Vanguard Russell 2000 Value ETF
VTWV
$1.36B
| $4.11M | ﹤0.01% |
+24,600
| New | +$4.2M |
|
2071
iQIYI
IQ
$994M
| $4.11M | ﹤0.01% |
3,046,300
+1,842,900
| +153% | +$3.18M |
|
2072
PUT
Dell
DELL
$292B
| $4.1M | ﹤0.01% |
25,000
+1,000
| +4% | +$133K |
|
2073
PUT
Applied Materials
AMAT
$381B
| $4.1M | ﹤0.01% |
12,000
+5,800
| +94% | +$1.95M |
|
2074
Erie Indemnity
ERIE
$13.5B
| $4.1M | ﹤0.01% |
16,299
-23,098
| -59% | -$6.2M |
|
|
DBCA
2075
D. Boral Acquisition I Corp
DBCA
$433M
| $4.1M | ﹤0.01% |
+415,363
| New | +$4.09M |
|
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.