Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
476
Champion Homes, Inc.
SKY
$4.17B
| $569K | ﹤0.01% |
21,292
+16,569
| +351% | +$443K |
|
477
Tower Semiconductor
TSEM
$7.51B
| $569K | ﹤0.01% |
31,234
-17,418
| -36% | -$317K |
|
|
LADR
478
Ladder Capital
LADR
$1.5B
| $564K | ﹤0.01% |
+79,318
| New | +$564K |
|
479
Macerich
MAC
$4.57B
| $563K | ﹤0.01% |
82,923
+20,481
| +33% | +$139K |
|
480
abrdn Physical Silver Shares ETF
SIVR
$2.54B
| $563K | ﹤0.01% |
25,040
+25,016
| +104,233% | +$562K |
|
481
CoreCivic
CXW
$2.18B
| $561K | ﹤0.01% |
70,170
+46,955
| +202% | +$375K |
|
482
Loews
L
$19.8B
| $556K | ﹤0.01% |
+16,001
| New | +$556K |
|
483
SLM Corp
SLM
$6.03B
| $554K | ﹤0.01% |
68,533
-16,826
| -20% | -$136K |
|
484
Lowe's Companies
LOW
$149B
| $550K | ﹤0.01% |
+3,322
| New | +$550K |
|
|
JOBS
485
DELISTED
51job, Inc.
JOBS
| $550K | ﹤0.01% |
7,059
+6,527
| +1,227% | +$509K |
|
486
ARK Autonomous Technology & Robotics ETF
ARKQ
$1.31B
| $549K | ﹤0.01% |
+9,582
| New | +$549K |
|
487
MP Materials
MP
$11B
| $548K | ﹤0.01% |
+40,426
| New | +$548K |
|
488
SolarEdge
SEDG
$1.77B
| $545K | ﹤0.01% |
+2,287
| New | +$545K |
|
489
Hecla Mining
HL
$7.24B
| $543K | ﹤0.01% |
+107,056
| New | +$543K |
|
490
MACOM Technology Solutions
MTSI
$9.83B
| $543K | ﹤0.01% |
+15,968
| New | +$543K |
|
491
Unilever
UL
$154B
| $542K | ﹤0.01% |
+8,802
| New | +$542K |
|
|
CUB
492
DELISTED
Cubic Corporation
CUB
| $542K | ﹤0.01% |
+9,320
| New | +$542K |
|
493
Global Payments
GPN
$20.8B
| $538K | ﹤0.01% |
+3,031
| New | +$538K |
|
|
AXNX
494
DELISTED
Axonics, Inc. Common Stock
AXNX
| $538K | ﹤0.01% |
10,559
+6,212
| +143% | +$317K |
|
495
BorgWarner
BWA
$9.36B
| $537K | ﹤0.01% |
+15,753
| New | +$537K |
|
496
Charles Schwab
SCHW
$169B
| $537K | ﹤0.01% |
+14,828
| New | +$537K |
|
497
Natera
NTRA
$23.4B
| $536K | ﹤0.01% |
7,424
+7,398
| +28,454% | +$534K |
|
498
Virgin Galactic
SPCE
$183M
| $536K | ﹤0.01% |
1,395
+842
| +152% | +$324K |
|
|
SAFE
499
Safehold
SAFE
$1.15B
| $534K | ﹤0.01% |
9,292
+7,039
| +312% | +$405K |
|
|
PRSP
500
DELISTED
Perspecta Inc. Common Stock
PRSP
| $533K | ﹤0.01% |
27,448
+17,694
| +181% | +$344K |
|