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 |
Apple
AAPL
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
First Citizens BancShares
FCNCA
$25.7B
| $3.63M | ﹤0.01% |
1,720
-2,487
| -59% | -$5.25M |
|
177
Solventum
SOLV
$12.4B
| $3.56M | ﹤0.01% |
53,950
+36,560
| +210% | +$2.41M |
|
178
Dave & Buster's
PLAY
$838M
| $3.49M | ﹤0.01% |
119,523
+113,533
| +1,895% | +$3.31M |
|
179
Pinterest
PINS
$25.2B
| $3.45M | ﹤0.01% |
119,130
-243,000
| -67% | -$7.05M |
|
180
NRG Energy
NRG
$28.4B
| $3.44M | ﹤0.01% |
+38,151
| New | +$3.44M |
|
181
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$304M
| $3.43M | ﹤0.01% |
93,671
+89,121
| +1,959% | +$3.26M |
|
182
Micron Technology
MU
$133B
| $3.42M | ﹤0.01% |
40,676
-61,371
| -60% | -$5.16M |
|
183
Global Ship Lease
GSL
$1.09B
| $3.4M | ﹤0.01% |
155,752
+143,024
| +1,124% | +$3.12M |
|
184
Global X Blockchain & Bitcoin Strategy ETF
BITS
$36M
| $3.4M | ﹤0.01% |
+50,823
| New | +$3.4M |
|
185
Advance Auto Parts
AAP
$3.54B
| $3.39M | ﹤0.01% |
71,791
+23,508
| +49% | +$1.11M |
|
186
Cenovus Energy
CVE
$29.7B
| $3.36M | ﹤0.01% |
222,053
+43,100
| +24% | +$653K |
|
187
Nutanix
NTNX
$18.2B
| $3.34M | ﹤0.01% |
+54,639
| New | +$3.34M |
|
188
iShares Gold Trust
IAU
$52.2B
| $3.33M | ﹤0.01% |
+67,330
| New | +$3.33M |
|
189
CRISPR Therapeutics
CRSP
$4.82B
| $3.27M | ﹤0.01% |
83,134
+16,254
| +24% | +$640K |
|
190
AdvisorShares Pure US Cannabis ETF
MSOS
$816M
| $3.25M | ﹤0.01% |
853,495
+540,009
| +172% | +$2.06M |
|
191
SiriusXM
SIRI
$7.92B
| $3.2M | ﹤0.01% |
140,381
-259,047
| -65% | -$5.91M |
|
192
BioMarin Pharmaceuticals
BMRN
$11.3B
| $3.17M | ﹤0.01% |
+48,243
| New | +$3.17M |
|
193
Group 1 Automotive
GPI
$6.09B
| $3.15M | ﹤0.01% |
7,467
+2,782
| +59% | +$1.17M |
|
194
Wynn Resorts
WYNN
$13.1B
| $3.14M | ﹤0.01% |
36,447
-45,764
| -56% | -$3.94M |
|
195
Nice
NICE
$8.48B
| $3.14M | ﹤0.01% |
18,481
-10,331
| -36% | -$1.75M |
|
196
Blackstone Mortgage Trust
BXMT
$3.33B
| $3.11M | ﹤0.01% |
178,838
+100,820
| +129% | +$1.75M |
|
197
C3.ai
AI
$2.29B
| $3.1M | ﹤0.01% |
89,911
-127,125
| -59% | -$4.38M |
|
198
Lockheed Martin
LMT
$105B
| $3.08M | ﹤0.01% |
+6,346
| New | +$3.08M |
|
199
Invesco CurrencyShares Euro Currency Trust
FXE
$527M
| $3.07M | ﹤0.01% |
32,075
+26,877
| +517% | +$2.57M |
|
200
NextDecade
NEXT
$2.74B
| $3.05M | ﹤0.01% |
395,637
+363,272
| +1,122% | +$2.8M |
|