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 |
Apple
AAPL
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
376
LegalZoom.com
LZ
$1.86B
| $1.3M | ﹤0.01% |
172,444
-466
| -0.3% | -$3.5K |
|
377
Viking Therapeutics
VKTX
$3.03B
| $1.29M | ﹤0.01% |
32,141
-28,840
| -47% | -$1.16M |
|
378
Insmed
INSM
$30.7B
| $1.29M | ﹤0.01% |
18,715
-40,846
| -69% | -$2.82M |
|
379
Moody's
MCO
$89.5B
| $1.29M | ﹤0.01% |
2,729
+608
| +29% | +$288K |
|
380
Vital Farms
VITL
$2.28B
| $1.29M | ﹤0.01% |
34,275
-19,813
| -37% | -$746K |
|
381
Intellia Therapeutics
NTLA
$1.29B
| $1.29M | ﹤0.01% |
110,531
+31,537
| +40% | +$367K |
|
382
Cal-Maine
CALM
$5.52B
| $1.28M | ﹤0.01% |
+12,429
| New | +$1.28M |
|
|
PTIR
383
GraniteShares 2x Long PLTR Daily ETF
PTIR
$652M
| $1.27M | ﹤0.01% |
+144,855
| New | +$1.27M |
|
384
Organon & Co
OGN
$2.7B
| $1.26M | ﹤0.01% |
84,541
-7,606
| -8% | -$113K |
|
385
Bausch + Lomb
BLCO
$5.31B
| $1.24M | ﹤0.01% |
68,852
+41,248
| +149% | +$745K |
|
386
Perrigo
PRGO
$3.12B
| $1.23M | ﹤0.01% |
47,787
+10,289
| +27% | +$264K |
|
|
JNPR
387
DELISTED
Juniper Networks
JNPR
| $1.21M | ﹤0.01% |
32,253
+10,932
| +51% | +$409K |
|
388
Vanguard FTSE Emerging Markets ETF
VWO
$97.2B
| $1.21M | ﹤0.01% |
27,366
-11,793
| -30% | -$519K |
|
389
RxSight
RXST
$364M
| $1.19M | ﹤0.01% |
+34,730
| New | +$1.19M |
|
390
Kosmos Energy
KOS
$784M
| $1.19M | ﹤0.01% |
348,937
+219,083
| +169% | +$749K |
|
|
NNDM
391
Nano Dimension
NNDM
$293M
| $1.19M | ﹤0.01% |
481,355
+236,579
| +97% | +$586K |
|
392
ZTO Express
ZTO
$14.7B
| $1.19M | ﹤0.01% |
60,791
+51,385
| +546% | +$1M |
|
393
Semtech
SMTC
$5.26B
| $1.18M | ﹤0.01% |
+19,130
| New | +$1.18M |
|
394
Melco Resorts & Entertainment
MLCO
$3.8B
| $1.18M | ﹤0.01% |
204,245
+90,362
| +79% | +$523K |
|
395
Fabrinet
FN
$13.2B
| $1.17M | ﹤0.01% |
+5,323
| New | +$1.17M |
|
|
SGI
396
Somnigroup International Inc.
SGI
$18.3B
| $1.17M | ﹤0.01% |
20,652
+11,189
| +118% | +$634K |
|
|
AZPN
397
DELISTED
Aspen Technology Inc
AZPN
| $1.17M | ﹤0.01% |
+4,688
| New | +$1.17M |
|
398
Toronto Dominion Bank
TD
$127B
| $1.16M | ﹤0.01% |
+21,835
| New | +$1.16M |
|
399
Waste Management
WM
$88.6B
| $1.16M | ﹤0.01% |
+5,732
| New | +$1.16M |
|
400
Hasbro
HAS
$11.2B
| $1.15M | ﹤0.01% |
+20,598
| New | +$1.15M |
|