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 |
Gilead Sciences
GILD
|
+$16.8M |
| 2 |
Apple
AAPL
|
+$16.2M |
| 3 |
Booking.com
BKNG
|
+$15.6M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
+$15.3M |
| 5 |
Wells Fargo
WFC
|
+$11.9M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$38M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
+$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
+$11.5M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
+$10.5M |
Sector Composition
| 1 | Communication Services | 15.83% |
| 2 | Healthcare | 15.63% |
| 3 | Consumer Discretionary | 12.92% |
| 4 | Technology | 11.44% |
| 5 | Financials | 8.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1126
Artisan Partners
APAM
$3.33B
| $19K | ﹤0.01% |
722
-1,692
| -70% | -$44.5K |
|
|
BDN
1127
Brandywine Realty Trust
BDN
$776M
| $19K | ﹤0.01% |
1,242
+1,155
| +1,328% | +$17.7K |
|
1128
BRF SA
BRFS
$6.06B
| $19K | ﹤0.01% |
1,117
-3,406
| -75% | -$57.9K |
|
1129
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.68B
| $19K | ﹤0.01% |
+461
| New | +$19K |
|
1130
Equinor
EQNR
$61.2B
| $19K | ﹤0.01% |
+1,185
| New | +$19K |
|
1131
Inovio Pharmaceuticals
INO
$139M
| $19K | ﹤0.01% |
+177
| New | +$19K |
|
1132
Oramed Pharmaceuticals
ORMP
$97.6M
| $19K | ﹤0.01% |
2,673
-1,500
| -36% | -$10.7K |
|
1133
Service Corp International
SCI
$11.2B
| $19K | ﹤0.01% |
724
-745
| -51% | -$19.6K |
|
1134
Shenandoah Telecom
SHEN
$733M
| $19K | ﹤0.01% |
+734
| New | +$19K |
|
1135
Veracyte
VCYT
$2.51B
| $19K | ﹤0.01% |
2,588
-59,465
| -96% | -$437K |
|
|
PPP
1136
DELISTED
Primero Mining Corp
PPP
| $19K | ﹤0.01% |
11,518
+6,964
| +153% | +$11.5K |
|
1137
Calumet Specialty Products
CLMT
$1.53B
| $18K | ﹤0.01% |
4,118
+1,491
| +57% | +$6.52K |
|
1138
Ezcorp Inc
EZPW
$1.01B
| $18K | ﹤0.01% |
1,708
-9,065
| -84% | -$95.5K |
|
1139
Perrigo
PRGO
$3.07B
| $18K | ﹤0.01% |
198
-12,847
| -98% | -$1.17M |
|
1140
Rigel Pharmaceuticals
RIGL
$663M
| $18K | ﹤0.01% |
497
-5,413
| -92% | -$196K |
|
1141
Sinclair Inc
SBGI
$949M
| $18K | ﹤0.01% |
644
-16,207
| -96% | -$453K |
|
1142
WisdomTree
WT
$2.06B
| $18K | ﹤0.01% |
+1,774
| New | +$18K |
|
|
ATHX
1143
DELISTED
Athersys, Inc. Common Stock
ATHX
| $18K | ﹤0.01% |
355
-101
| -22% | -$5.12K |
|
|
UBIO
1144
DELISTED
Proshares UltraPro NASDAQ Biotechnology
UBIO
| $18K | ﹤0.01% |
+637
| New | +$18K |
|
1145
Alpha and Omega Semiconductor
AOSL
$873M
| $17K | ﹤0.01% |
811
+729
| +889% | +$15.3K |
|
1146
IDEX
IEX
$12.3B
| $17K | ﹤0.01% |
+184
| New | +$17K |
|
1147
Kaiser Aluminum
KALU
$1.24B
| $17K | ﹤0.01% |
+197
| New | +$17K |
|
1148
Masimo
MASI
$7.95B
| $17K | ﹤0.01% |
292
+201
| +221% | +$11.7K |
|
1149
US Foods
USFD
$17.9B
| $17K | ﹤0.01% |
+741
| New | +$17K |
|
1150
Vanguard Consumer Discretionary ETF
VCR
$6.55B
| $17K | ﹤0.01% |
140
-200
| -59% | -$24.3K |
|