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 | |
|---|---|---|---|---|---|---|
451
Cintas
CTAS
$81.2B
| $192K | 0.02% |
8,588
+3,224
| +60% | +$72.1K |
|
|
WP
452
DELISTED
Worldpay, Inc.
WP
| $191K | 0.02% |
+3,551
| New | +$191K |
|
|
ARLZ
453
DELISTED
Aralez Pharmaceuticals Inc.
ARLZ
| $191K | 0.02% |
+53,835
| New | +$191K |
|
454
Kayne Anderson Energy Infrastructure Fund
KYN
$2.05B
| $190K | 0.02% |
11,490
+178
| +2% | +$2.94K |
|
455
ProShares Ultra NASDAQ Biotechnology
BIB
$55.3M
| $189K | 0.02% |
+4,633
| New | +$189K |
|
456
Gen Digital
GEN
$18B
| $189K | 0.02% |
10,315
+4,552
| +79% | +$83.4K |
|
457
Palo Alto Networks
PANW
$132B
| $189K | 0.02% |
+6,978
| New | +$189K |
|
458
Williams-Sonoma
WSM
$24.7B
| $187K | 0.01% |
6,848
-6,110
| -47% | -$167K |
|
459
Cal-Maine
CALM
$5.31B
| $186K | 0.01% |
+3,588
| New | +$186K |
|
460
Pan American Silver
PAAS
$15.3B
| $186K | 0.01% |
17,188
-29,192
| -63% | -$316K |
|
|
HAR
461
DELISTED
Harman International Industries
HAR
| $186K | 0.01% |
2,096
-6,216
| -75% | -$552K |
|
462
First Industrial Realty Trust
FR
$6.77B
| $185K | 0.01% |
+8,153
| New | +$185K |
|
|
SRC
463
DELISTED
SPIRIT REALTY CAPITAL, INC.
SRC
| $183K | 0.01% |
+3,645
| New | +$183K |
|
464
Autohome
ATHM
$3.4B
| $182K | 0.01% |
6,522
-4,795
| -42% | -$134K |
|
465
SM Energy
SM
$3.14B
| $182K | 0.01% |
+9,761
| New | +$182K |
|
466
Copa Holdings
CPA
$4.73B
| $180K | 0.01% |
+2,660
| New | +$180K |
|
|
CPE
467
DELISTED
Callon Petroleum Company
CPE
| $180K | 0.01% |
2,043
+1,961
| +2,391% | +$173K |
|
|
IBKC
468
DELISTED
IBERIABANK Corp
IBKC
| $180K | 0.01% |
+3,522
| New | +$180K |
|
469
Kennametal
KMT
$1.59B
| $179K | 0.01% |
7,987
+4,585
| +135% | +$103K |
|
|
LQ
470
DELISTED
La Quinta Holdings Inc.
LQ
| $178K | 0.01% |
14,247
+13,398
| +1,578% | +$167K |
|
|
ZLTQ
471
DELISTED
ZELTIQ Aesthetics, Inc.
ZLTQ
| $178K | 0.01% |
6,562
+5,112
| +353% | +$139K |
|
472
Alerian MLP ETF
AMLP
$10.5B
| $177K | 0.01% |
+3,256
| New | +$177K |
|
473
Brown-Forman Class B
BF.B
$12.9B
| $177K | 0.01% |
+5,625
| New | +$177K |
|
|
DPLO
474
DELISTED
DIPLOMAT PHARMACY, INC.
DPLO
| $177K | 0.01% |
6,473
-8,970
| -58% | -$245K |
|
|
EJ
475
DELISTED
E HOUSE (CHINA) HOLDINGS LIMITED
EJ
| $177K | 0.01% |
28,613
-26,161
| -48% | -$162K |
|