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 | |
|---|---|---|---|---|---|---|
1176
Viasat
VSAT
$4.28B
| $74K | ﹤0.01% |
6,232
-13,406
| -68% | -$159K |
|
1177
Direxion Daily AAPL Bull 2X Shares
AAPU
$190M
| $73K | ﹤0.01% |
1,942
-6,052
| -76% | -$227K |
|
1178
Camden Property Trust
CPT
$11.8B
| $72K | ﹤0.01% |
585
-238
| -29% | -$29.3K |
|
1179
Nine Energy Service
NINE
$30.6M
| $72K | ﹤0.01% |
64,239
-60,420
| -48% | -$67.7K |
|
1180
Omeros
OMER
$286M
| $72K | ﹤0.01% |
18,144
-15,929
| -47% | -$63.2K |
|
1181
Semrush
SEMR
$1.1B
| $72K | ﹤0.01% |
4,645
-1,958
| -30% | -$30.4K |
|
1182
SiteOne Landscape Supply
SITE
$6.39B
| $72K | ﹤0.01% |
+481
| New | +$72K |
|
1183
GraniteShares 2x Long MSFT Daily ETF
MSFL
$23.8M
| $72K | ﹤0.01% |
2,892
+2,822
| +4,031% | +$70.3K |
|
1184
FuelCell Energy
FCEL
$209M
| $71K | ﹤0.01% |
6,314
+393
| +7% | +$4.42K |
|
1185
ProShares UltraShort Bloomberg Crude Oil
SCO
$125M
| $71K | ﹤0.01% |
+3,652
| New | +$71K |
|
1186
10x Genomics
TXG
$1.63B
| $71K | ﹤0.01% |
+3,169
| New | +$71K |
|
1187
Vanguard Long-Term Treasury ETF
VGLT
$10.2B
| $71K | ﹤0.01% |
1,155
-2,600
| -69% | -$160K |
|
|
VRE
1188
Veris Residential
VRE
$1.49B
| $71K | ﹤0.01% |
4,031
+2,538
| +170% | +$44.7K |
|
1189
Atomera
ATOM
$103M
| $70K | ﹤0.01% |
26,634
-27,254
| -51% | -$71.6K |
|
1190
Phreesia
PHR
$1.53B
| $70K | ﹤0.01% |
+3,088
| New | +$70K |
|
|
LAR
1191
Lithium Argentina AG
LAR
$513M
| $70K | ﹤0.01% |
+21,700
| New | +$70K |
|
1192
Annovis Bio
ANVS
$45M
| $69K | ﹤0.01% |
+8,605
| New | +$69K |
|
1193
Extreme Networks
EXTR
$3.02B
| $69K | ﹤0.01% |
4,632
-13,238
| -74% | -$197K |
|
1194
VistaGen Therapeutics
VTGN
$107M
| $69K | ﹤0.01% |
23,000
+5,893
| +34% | +$17.7K |
|
|
AISP
1195
Airship AI Holdings
AISP
$146M
| $68K | ﹤0.01% |
+29,778
| New | +$68K |
|
|
CHX
1196
DELISTED
ChampionX
CHX
| $68K | ﹤0.01% |
2,279
-5,893
| -72% | -$176K |
|
1197
Global Net Lease
GNL
$1.81B
| $68K | ﹤0.01% |
8,096
+3,132
| +63% | +$26.3K |
|
1198
Hyliion Holdings
HYLN
$288M
| $68K | ﹤0.01% |
27,495
+12,078
| +78% | +$29.9K |
|
1199
Cars.com
CARS
$815M
| $67K | ﹤0.01% |
+4,002
| New | +$67K |
|
1200
ProShares Ultra Dow30
DDM
$452M
| $67K | ﹤0.01% |
703
-1,593
| -69% | -$152K |
|