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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1151
Assurant
AIZ
$10.6B
| $81K | ﹤0.01% |
+412
| New | +$81K |
|
1152
Clearwater Paper
CLW
$342M
| $81K | ﹤0.01% |
2,841
+2,782
| +4,715% | +$79.3K |
|
1153
Matthews International
MATW
$761M
| $81K | ﹤0.01% |
3,534
-2,377
| -40% | -$54.5K |
|
1154
Repay Holdings
RPAY
$487M
| $81K | ﹤0.01% |
+10,008
| New | +$81K |
|
|
SRTA
1155
Strata Critical Medical, Inc. Class A Common Stock
SRTA
$326M
| $79K | ﹤0.01% |
26,954
-4,295
| -14% | -$12.6K |
|
|
KNDI
1156
Kandi Technologies Group
KNDI
$113M
| $79K | ﹤0.01% |
38,828
+37,067
| +2,105% | +$75.4K |
|
1157
PG&E
PCG
$34.6B
| $79K | ﹤0.01% |
4,038
-84,799
| -95% | -$1.66M |
|
|
PLYA
1158
DELISTED
Playa Hotels & Resorts
PLYA
| $79K | ﹤0.01% |
10,217
+264
| +3% | +$2.04K |
|
1159
Prospect Capital
PSEC
$1.29B
| $79K | ﹤0.01% |
+14,878
| New | +$79K |
|
1160
Ibotta
IBTA
$745M
| $79K | ﹤0.01% |
1,283
-750
| -37% | -$46.2K |
|
1161
ADS-TEC Energy
ADSE
$547M
| $78K | ﹤0.01% |
+5,863
| New | +$78K |
|
1162
Ocular Therapeutix
OCUL
$2.27B
| $78K | ﹤0.01% |
9,042
-13,900
| -61% | -$120K |
|
1163
Taysha Gene Therapies
TSHA
$887M
| $78K | ﹤0.01% |
+38,813
| New | +$78K |
|
1164
Direxion Daily MSCI Brazil Bull 2X Shares
BRZU
$136M
| $77K | ﹤0.01% |
1,109
-2,344
| -68% | -$163K |
|
1165
ProShares Ether Strategy ETF
EETH
$114M
| $77K | ﹤0.01% |
1,478
-1,274
| -46% | -$66.4K |
|
|
GMS
1166
DELISTED
GMS Inc
GMS
| $77K | ﹤0.01% |
+855
| New | +$77K |
|
1167
Patria Investments
PAX
$2.26B
| $77K | ﹤0.01% |
6,901
-121
| -2% | -$1.35K |
|
|
BMTX
1168
DELISTED
BM Technologies, Inc.
BMTX
| $77K | ﹤0.01% |
+22,725
| New | +$77K |
|
1169
Invesco DB Agriculture Fund
DBA
$811M
| $76K | ﹤0.01% |
2,943
-9,432
| -76% | -$244K |
|
1170
Workiva
WK
$4.24B
| $76K | ﹤0.01% |
969
-7,132
| -88% | -$559K |
|
|
GATO
1171
DELISTED
Gatos Silver, Inc.
GATO
| $76K | ﹤0.01% |
5,101
+444
| +10% | +$6.62K |
|
1172
Allogene Therapeutics
ALLO
$260M
| $75K | ﹤0.01% |
+27,130
| New | +$75K |
|
1173
Herbalife
HLF
$958M
| $75K | ﹤0.01% |
+10,451
| New | +$75K |
|
1174
Matsons
MATX
$3.28B
| $75K | ﹤0.01% |
+527
| New | +$75K |
|
|
VZIO
1175
DELISTED
VIZIO Holding Corp.
VZIO
| $75K | ﹤0.01% |
+6,728
| New | +$75K |
|