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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
LLAP
1101
DELISTED
Terran Orbital Corporation
LLAP
| $141K | ﹤0.01% |
107,676
+12,678
| +13% | +$16.6K |
|
1102
Direxion Daily Financial Bear 3x Shares
FAZ
$107M
| $140K | ﹤0.01% |
+14,278
| New | +$140K |
|
1103
James River Group
JRVR
$247M
| $140K | ﹤0.01% |
15,116
-10,985
| -42% | -$102K |
|
1104
Hyliion Holdings
HYLN
$349M
| $139K | ﹤0.01% |
79,119
+29,818
| +60% | +$52.4K |
|
1105
Teucrium Corn Fund
CORN
$49.2M
| $138K | ﹤0.01% |
6,884
-4,492
| -39% | -$90K |
|
1106
Duolingo
DUOL
$13.3B
| $138K | ﹤0.01% |
+630
| New | +$138K |
|
1107
DNOW Inc
DNOW
$1.63B
| $137K | ﹤0.01% |
+9,021
| New | +$137K |
|
1108
Gentex
GNTX
$6.38B
| $137K | ﹤0.01% |
+3,809
| New | +$137K |
|
1109
iShares S&P GSCI Commodity-Indexed Trust
GSG
$978M
| $137K | ﹤0.01% |
6,221
-2,718
| -30% | -$59.9K |
|
1110
Vanda Pharmaceuticals
VNDA
$267M
| $137K | ﹤0.01% |
33,347
+25,942
| +350% | +$107K |
|
1111
Upwork
UPWK
$2.6B
| $136K | ﹤0.01% |
11,164
-32,014
| -74% | -$390K |
|
1112
Telus
TU
$24.1B
| $135K | ﹤0.01% |
+8,434
| New | +$135K |
|
1113
Danaos Corp
DAC
$1.74B
| $134K | ﹤0.01% |
+1,863
| New | +$134K |
|
1114
Haleon
HLN
$41.3B
| $134K | ﹤0.01% |
15,784
-18,673
| -54% | -$159K |
|
|
ARR
1115
Armour Residential REIT
ARR
$1.66B
| $133K | ﹤0.01% |
+6,732
| New | +$133K |
|
|
EXAI
1116
DELISTED
Exscientia Plc American Depositary Shares
EXAI
| $133K | ﹤0.01% |
23,316
+11,615
| +99% | +$66.3K |
|
1117
Cantaloupe
CTLP
$778M
| $132K | ﹤0.01% |
+20,649
| New | +$132K |
|
|
DRD
1118
DRDGold
DRD
$2.11B
| $131K | ﹤0.01% |
16,044
+900
| +6% | +$7.35K |
|
1119
Bank of Hawaii
BOH
$2.7B
| $130K | ﹤0.01% |
2,091
+922
| +79% | +$57.3K |
|
1120
Rambus
RMBS
$11.6B
| $130K | ﹤0.01% |
+2,108
| New | +$130K |
|
1121
Maravai LifeSciences
MRVI
$417M
| $128K | ﹤0.01% |
14,764
-31,851
| -68% | -$276K |
|
|
NPKI
1122
NPK International Inc.
NPKI
$932M
| $128K | ﹤0.01% |
17,794
-3,273
| -16% | -$23.5K |
|
|
SBDS
1123
Solo Brands, Inc.
SBDS
$32.6M
| $128K | ﹤0.01% |
59,321
+53,506
| +920% | +$115K |
|
1124
Arcos Dorados Holdings
ARCO
$1.42B
| $127K | ﹤0.01% |
11,498
-38,527
| -77% | -$426K |
|
|
BRAG
1125
Bragg Gaming Group
BRAG
$72.5M
| $127K | ﹤0.01% |
20,710
-21,509
| -51% | -$132K |
|