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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1176
Ranpak Holdings
PACK
$395M
| $77K | ﹤0.01% |
+14,358
| New | +$77K |
|
|
ETHD
1177
ProShares UltraShort Ether ETF
ETHD
$83.3M
| $77K | ﹤0.01% |
1,430
+1,299
| +992% | +$69.9K |
|
|
IWMI
1178
NEOS Russell 2000 High Income ETF
IWMI
$265M
| $77K | ﹤0.01% |
+1,781
| New | +$77K |
|
|
LUCK
1179
Lucky Strike Entertainment Corporation
LUCK
$1.38B
| $77K | ﹤0.01% |
7,963
+7,008
| +734% | +$67.8K |
|
|
BHR
1180
Braemar Hotels & Resorts
BHR
$203M
| $76K | ﹤0.01% |
30,624
+30,277
| +8,725% | +$75.1K |
|
1181
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$653M
| $76K | ﹤0.01% |
2,880
+450
| +19% | +$11.9K |
|
1182
Flex
FLEX
$21.4B
| $76K | ﹤0.01% |
+2,326
| New | +$76K |
|
1183
iShares Floating Rate Bond ETF
FLOT
$9.07B
| $76K | ﹤0.01% |
+1,500
| New | +$76K |
|
1184
Fomento Económico Mexicano
FMX
$32B
| $76K | ﹤0.01% |
783
+65
| +9% | +$6.31K |
|
1185
Kopin
KOPN
$412M
| $76K | ﹤0.01% |
81,681
+57,001
| +231% | +$53K |
|
1186
Post Holdings
POST
$5.7B
| $76K | ﹤0.01% |
654
+386
| +144% | +$44.9K |
|
1187
Ardmore Shipping
ASC
$505M
| $75K | ﹤0.01% |
7,683
-52,256
| -87% | -$510K |
|
1188
Central Garden & Pet
CENT
$2.24B
| $75K | ﹤0.01% |
2,048
-419
| -17% | -$15.3K |
|
1189
Emergent Biosolutions
EBS
$434M
| $75K | ﹤0.01% |
+15,540
| New | +$75K |
|
1190
FirstCash
FCFS
$6.49B
| $75K | ﹤0.01% |
626
-14,351
| -96% | -$1.72M |
|
1191
Direxion Daily 7-10 Year Treasury Bull 3X Shares
TYD
$51.6M
| $75K | ﹤0.01% |
+2,959
| New | +$75K |
|
|
SGI
1192
Somnigroup International Inc.
SGI
$17.6B
| $75K | ﹤0.01% |
1,254
-19,398
| -94% | -$1.16M |
|
1193
VanEck Biotech ETF
BBH
$349M
| $74K | ﹤0.01% |
474
+238
| +101% | +$37.2K |
|
1194
DXP Enterprises
DXPE
$1.85B
| $74K | ﹤0.01% |
900
-2,405
| -73% | -$198K |
|
1195
MDU Resources
MDU
$3.32B
| $74K | ﹤0.01% |
4,383
-14,474
| -77% | -$244K |
|
1196
Vertex
VERX
$3.84B
| $74K | ﹤0.01% |
2,137
+1,101
| +106% | +$38.1K |
|
1197
Lyft
LYFT
$7.73B
| $73K | ﹤0.01% |
+6,189
| New | +$73K |
|
1198
Stifel
SF
$11.8B
| $73K | ﹤0.01% |
+778
| New | +$73K |
|
1199
Lloyds Banking Group
LYG
$67B
| $72K | ﹤0.01% |
19,077
+17,108
| +869% | +$64.6K |
|
|
ALTS
1200
ALT5 Sigma Corporation Common Stock
ALTS
$522M
| $72K | ﹤0.01% |
+18,611
| New | +$72K |
|