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 | |
|---|---|---|---|---|---|---|
2551
PUT
3M
MMM
$92.3B
| $2.34M | ﹤0.01% |
16,100
+13,500
| +519% | +$2.15M |
|
2552
Sasol
SSL
$7.3B
| $2.34M | ﹤0.01% |
180,400
-782,044
| -81% | -$6.83M |
|
2553
PMV Pharmaceuticals
PMVP
$70M
| $2.34M | ﹤0.01% |
1,884,530
+1,178,469
| +167% | +$1.5M |
|
2554
CALL
Alcoa
AA
$13.1B
| $2.33M | ﹤0.01% |
35,100
+30,100
| +602% | +$1.85M |
|
|
VOXR
2555
Vox Royalty Corp
VOXR
$398M
| $2.33M | ﹤0.01% |
444,204
+89,792
| +25% | +$480K |
|
2556
CALL
Kratos Defense & Security Solutions
KTOS
$9.91B
| $2.33M | ﹤0.01% |
33,000
+22,000
| +200% | +$2.11M |
|
2557
PUT
CoStar Group
CSGP
$12.9B
| $2.32M | ﹤0.01% |
+57,600
| New | +$3M |
|
2558
Eagle Bancorp
EGBN
$840M
| $2.32M | ﹤0.01% |
93,318
+34,004
| +57% | +$848K |
|
2559
SIGA Technologies
SIGA
$221M
| $2.32M | ﹤0.01% |
433,661
+423,261
| +4,070% | +$2.64M |
|
2560
American Resources Corp
AREC
$282M
| $2.32M | ﹤0.01% |
957,106
+18,261
| +2% | +$58.1K |
|
2561
Lifeway Foods
LWAY
$392M
| $2.31M | ﹤0.01% |
119,629
-7,386
| -6% | -$157K |
|
2562
CALL
United Therapeutics
UTHR
$22.2B
| $2.31M | ﹤0.01% |
+3,900
| New | +$1.94M |
|
|
MTAL.U
2563
Metals Acquisition Corp II Units
MTAL.U
| $2.31M | ﹤0.01% |
+229,167
| New | +$2.32M |
|
|
USAR
2564
PUT
USA Rare Earth Inc
USAR
$4.64B
| $2.3M | ﹤0.01% |
+152,200
| New | +$2.95M |
|
2565
PUT
Cardinal Health
CAH
$55.2B
| $2.3M | ﹤0.01% |
+10,900
| New | +$2.35M |
|
|
BZUN
2566
Baozun
BZUN
$162M
| $2.3M | ﹤0.01% |
963,515
+856,936
| +804% | +$2.23M |
|
2567
Invesco S&P MidCap Low Volatility ETF
XMLV
$747M
| $2.3M | ﹤0.01% |
36,500
| – | – |
|
|
AEVA
2568
Aeva Technologies
AEVA
$1.1B
| $2.3M | ﹤0.01% |
174,603
-267,606
| -61% | -$3.98M |
|
2569
8x8 Inc
EGHT
$274M
| $2.3M | ﹤0.01% |
1,383,839
+969,744
| +234% | +$1.98M |
|
2570
James River Group Holdings
JRVR
$193M
| $2.29M | ﹤0.01% |
364,199
+97,694
| +37% | +$642K |
|
|
WLIIU
2571
Willow Lane Acquisition Corp II Unit
WLIIU
| $2.29M | ﹤0.01% |
+226,562
| New | +$2.29M |
|
|
BORR
2572
Borr Drilling
BORR
$1.35B
| $2.29M | ﹤0.01% |
+396,427
| New | +$2.03M |
|
|
SCHW
2573
CALL
Charles Schwab
SCHW
$189B
| $2.28M | ﹤0.01% |
24,300
+4,300
| +22% | +$422K |
|
2574
Vanguard US Quality Factor ETF
VFQY
$501M
| $2.28M | ﹤0.01% |
+15,300
| New | +$2.38M |
|
2575
Daktronics
DAKT
$929M
| $2.28M | ﹤0.01% |
116,699
+46,999
| +67% | +$1.07M |
|
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.