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 |
Tesla
TSLA
|
+$27.1M |
| 2 |
Netflix
NFLX
|
+$24.7M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$20.1M |
| 4 |
TWX
Time Warner Inc
TWX
|
+$18.3M |
| 5 |
Alibaba
BABA
|
+$14.8M |
Top Sells
| 1 |
Amazon
AMZN
|
+$71.9M |
| 2 |
Micron Technology
MU
|
+$47.7M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$26.3M |
| 4 |
Boeing
BA
|
+$21M |
| 5 |
Citigroup
C
|
+$19.6M |
Sector Composition
| 1 | Consumer Discretionary | 15.64% |
| 2 | Communication Services | 14.16% |
| 3 | Technology | 12.46% |
| 4 | Financials | 10.94% |
| 5 | Healthcare | 10.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
POLY
501
DELISTED
Plantronics, Inc.
POLY
| $332K | 0.01% |
+5,511
| New | +$332K |
|
502
Nucor
NUE
$32.6B
| $331K | 0.01% |
+5,420
| New | +$331K |
|
|
SAIL
503
DELISTED
SailPoint Technologies Holdings, Inc. Common Stock
SAIL
| $331K | 0.01% |
+16,010
| New | +$331K |
|
|
FNG
504
DELISTED
AdvisorShares New Tech and Media ETF
FNG
| $331K | 0.01% |
15,940
-6,423
| -29% | -$133K |
|
505
Kennametal
KMT
$1.59B
| $330K | 0.01% |
8,221
-5,555
| -40% | -$223K |
|
|
SCG
506
DELISTED
Scana
SCG
| $330K | 0.01% |
8,803
-8,738
| -50% | -$328K |
|
|
AZUL
507
DELISTED
Azul
AZUL
| $329K | 0.01% |
+9,478
| New | +$329K |
|
508
ProShares UltraShort NASDAQ Biotechnology
BIS
$2.38M
| $328K | 0.01% |
+3,885
| New | +$328K |
|
509
Evercore
EVR
$12.8B
| $327K | 0.01% |
3,757
+2,308
| +159% | +$201K |
|
510
Kulicke & Soffa
KLIC
$1.98B
| $327K | 0.01% |
13,090
+12,506
| +2,141% | +$312K |
|
511
BHP
BHP
$135B
| $326K | 0.01% |
+8,228
| New | +$326K |
|
512
Quest Diagnostics
DGX
$20.1B
| $326K | 0.01% |
+3,256
| New | +$326K |
|
513
Southern Copper
SCCO
$82.9B
| $326K | 0.01% |
6,324
-1,907
| -23% | -$98.3K |
|
514
Gyre Therapeutics
GYRE
$742M
| $325K | 0.01% |
+1,680
| New | +$325K |
|
515
Stitch Fix
SFIX
$745M
| $325K | 0.01% |
16,031
+10,581
| +194% | +$215K |
|
516
MPLX
MPLX
$50.8B
| $323K | 0.01% |
9,781
+2,151
| +28% | +$71K |
|
517
Rithm Capital
RITM
$6.63B
| $321K | 0.01% |
19,567
-11,414
| -37% | -$187K |
|
518
EPAM Systems
EPAM
$8.53B
| $317K | 0.01% |
2,774
-6,045
| -69% | -$691K |
|
519
Cheniere Energy
CQP
$25.7B
| $316K | 0.01% |
+10,870
| New | +$316K |
|
520
Public Storage
PSA
$50.7B
| $315K | 0.01% |
+1,575
| New | +$315K |
|
521
El Pollo Loco
LOCO
$303M
| $310K | 0.01% |
+32,657
| New | +$310K |
|
522
Martin Marietta Materials
MLM
$37.2B
| $310K | 0.01% |
+1,497
| New | +$310K |
|
523
Direxion Daily Emerging Markets Bull 3X Shares
EDC
$92M
| $309K | 0.01% |
+2,431
| New | +$309K |
|
524
DXC Technology
DXC
$2.55B
| $308K | 0.01% |
3,548
-3,069
| -46% | -$266K |
|
525
Highwoods Properties
HIW
$3.44B
| $307K | 0.01% |
+7,025
| New | +$307K |
|