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 |
NVIDIA
NVDA
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1151
Apple Hospitality REIT
APLE
$2.98B
| $95K | ﹤0.01% |
+6,560
| New | +$95K |
|
1152
Idaho Strategic Resources
IDR
$440M
| $95K | ﹤0.01% |
9,691
+9,250
| +2,098% | +$90.7K |
|
1153
Magnolia Oil & Gas
MGY
$4.41B
| $95K | ﹤0.01% |
+3,778
| New | +$95K |
|
1154
Vimeo
VMEO
$1.28B
| $95K | ﹤0.01% |
25,586
-92,129
| -78% | -$342K |
|
1155
CorVel
CRVL
$4.39B
| $94K | ﹤0.01% |
+1,116
| New | +$94K |
|
|
LSEA
1156
DELISTED
Landsea Homes
LSEA
| $94K | ﹤0.01% |
+10,268
| New | +$94K |
|
1157
ProShares Ultra Yen
YCL
$55.9M
| $94K | ﹤0.01% |
4,653
+3,308
| +246% | +$66.8K |
|
1158
MoonLake Immunotherapeutics
MLTX
$3.34B
| $93K | ﹤0.01% |
+2,118
| New | +$93K |
|
1159
Ryman Hospitality Properties
RHP
$6.31B
| $93K | ﹤0.01% |
935
+837
| +854% | +$83.3K |
|
1160
Xponential Fitness
XPOF
$313M
| $93K | ﹤0.01% |
5,982
-7,721
| -56% | -$120K |
|
|
BDN
1161
Brandywine Realty Trust
BDN
$789M
| $92K | ﹤0.01% |
20,715
-13,430
| -39% | -$59.6K |
|
1162
iShares MSCI Mexico ETF
EWW
$1.92B
| $92K | ﹤0.01% |
1,631
-25,541
| -94% | -$1.44M |
|
1163
REX FANG & Innovation Equity Premium Income ETF
FEPI
$517M
| $92K | ﹤0.01% |
+1,695
| New | +$92K |
|
1164
Energizer
ENR
$2.02B
| $91K | ﹤0.01% |
+3,095
| New | +$91K |
|
|
ORC
1165
Orchid Island Capital
ORC
$1.04B
| $91K | ﹤0.01% |
+10,937
| New | +$91K |
|
1166
iShares Russell 3000 ETF
IWV
$16.9B
| $90K | ﹤0.01% |
294
+267
| +989% | +$81.7K |
|
1167
Sterling Infrastructure
STRL
$9.54B
| $90K | ﹤0.01% |
763
-1,177
| -61% | -$139K |
|
1168
Aurora
AUR
$10.5B
| $89K | ﹤0.01% |
+32,281
| New | +$89K |
|
1169
Bit Digital
BTBT
$955M
| $89K | ﹤0.01% |
+28,258
| New | +$89K |
|
1170
Roundhill Generative AI & Technology ETF
CHAT
$591M
| $89K | ﹤0.01% |
+2,410
| New | +$89K |
|
1171
Camden Property Trust
CPT
$11.7B
| $89K | ﹤0.01% |
+823
| New | +$89K |
|
1172
Funko
FNKO
$182M
| $89K | ﹤0.01% |
+9,149
| New | +$89K |
|
1173
Intuitive Machines
LUNR
$1.03B
| $89K | ﹤0.01% |
27,156
+17,962
| +195% | +$58.9K |
|
1174
SoundHound AI
SOUN
$5.76B
| $89K | ﹤0.01% |
+22,747
| New | +$89K |
|
1175
Liberty Media Series A
FWONA
$22.5B
| $88K | ﹤0.01% |
+1,377
| New | +$88K |
|