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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Jack in the Box
JACK
$345M
| $163K | 0.01% |
2,556
+1,940
| +315% | +$124K |
|
|
VLRS
502
Controladora Vuela Compañía de Aviación
VLRS
$712M
| $163K | 0.01% |
7,756
-14,494
| -65% | -$305K |
|
503
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.51B
| $161K | 0.01% |
684
+593
| +652% | +$140K |
|
|
DWA
504
DELISTED
DREAMWORKS ANIMATION SKG INC CL-A
DWA
| $161K | 0.01% |
6,482
+4,639
| +252% | +$115K |
|
505
Genworth Financial
GNW
$3.51B
| $159K | 0.01% |
+58,548
| New | +$159K |
|
506
Boston Properties
BXP
$11.7B
| $158K | 0.01% |
1,244
-32
| -3% | -$4.06K |
|
|
HDNG
507
DELISTED
Hardinge Inc
HDNG
| $157K | 0.01% |
+12,649
| New | +$157K |
|
508
Rayonier
RYN
$4.04B
| $156K | 0.01% |
+6,678
| New | +$156K |
|
|
NUVA
509
DELISTED
NuVasive, Inc.
NUVA
| $156K | 0.01% |
3,220
+2,982
| +1,253% | +$144K |
|
|
PVG
510
DELISTED
PRETIUM RESOURCES INC.
PVG
| $156K | 0.01% |
29,256
+29,225
| +94,274% | +$156K |
|
511
Casey's General Stores
CASY
$20B
| $155K | 0.01% |
+1,373
| New | +$155K |
|
512
EQT Corp
EQT
$31.9B
| $155K | 0.01% |
4,247
-7,916
| -65% | -$289K |
|
513
Vertex Pharmaceuticals
VRTX
$99.6B
| $155K | 0.01% |
1,950
-273
| -12% | -$21.7K |
|
514
Lloyds Banking Group
LYG
$66.4B
| $154K | 0.01% |
+39,172
| New | +$154K |
|
515
Genuine Parts
GPC
$19.4B
| $153K | 0.01% |
1,543
+1,456
| +1,674% | +$144K |
|
516
Trane Technologies
TT
$92.9B
| $153K | 0.01% |
2,471
-2,251
| -48% | -$139K |
|
517
Wheaton Precious Metals
WPM
$47.9B
| $153K | 0.01% |
9,273
+8,539
| +1,163% | +$141K |
|
518
Assertio
ASRT
$77.5M
| $152K | 0.01% |
2,741
-8,021
| -75% | -$445K |
|
|
AVTA
519
DELISTED
Avantax, Inc. Common Stock
AVTA
| $152K | 0.01% |
29,498
+16,796
| +132% | +$86.5K |
|
|
MFRM
520
DELISTED
MATTRESS FIRM HLDG CORP COM STK (DE)
MFRM
| $152K | 0.01% |
+3,598
| New | +$152K |
|
521
Hecla Mining
HL
$7.35B
| $150K | 0.01% |
54,126
+53,511
| +8,701% | +$148K |
|
522
Celanese
CE
$4.84B
| $149K | 0.01% |
+2,286
| New | +$149K |
|
523
Lands' End
LE
$453M
| $149K | 0.01% |
5,841
+1,650
| +39% | +$42.1K |
|
524
Darling Ingredients
DAR
$4.95B
| $148K | 0.01% |
11,302
-8,066
| -42% | -$106K |
|
|
CCIH
525
DELISTED
Chinacache International Holdings Ltd
CCIH
| $148K | 0.01% |
18,764
+17,656
| +1,594% | +$139K |
|