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
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
ProShares UltraPro Short S&P 500
SPXU
$524M
| $2.41M | ﹤0.01% |
35,738
+32,256
| +926% | +$2.17M |
|
177
89bio
ETNB
$1.31B
| $2.4M | ﹤0.01% |
157,700
+88,017
| +126% | +$1.34M |
|
178
ZIM Integrated Shipping Services
ZIM
$1.61B
| $2.4M | ﹤0.01% |
101,855
+68,886
| +209% | +$1.62M |
|
179
Weibo
WB
$2.85B
| $2.38M | ﹤0.01% |
+118,883
| New | +$2.38M |
|
180
McCormick & Company Non-Voting
MKC
$19B
| $2.38M | ﹤0.01% |
+28,576
| New | +$2.38M |
|
181
Pfizer
PFE
$141B
| $2.37M | ﹤0.01% |
58,169
+4,179
| +8% | +$170K |
|
182
Alliant Energy
LNT
$16.6B
| $2.35M | ﹤0.01% |
44,011
-7,248
| -14% | -$387K |
|
|
SPWR
183
DELISTED
SunPower Corporation Common Stock
SPWR
| $2.33M | ﹤0.01% |
+168,592
| New | +$2.33M |
|
184
Cardinal Health
CAH
$35.6B
| $2.31M | ﹤0.01% |
30,561
-1,449
| -5% | -$109K |
|
|
ITCI
185
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $2.29M | ﹤0.01% |
42,348
+36,159
| +584% | +$1.96M |
|
186
Concentrix
CNXC
$3.38B
| $2.27M | ﹤0.01% |
18,697
+17,034
| +1,024% | +$2.07M |
|
187
PTC
PTC
$25.6B
| $2.26M | ﹤0.01% |
+17,607
| New | +$2.26M |
|
188
TransUnion
TRU
$17.6B
| $2.26M | ﹤0.01% |
+36,304
| New | +$2.26M |
|
189
Spectrum Brands
SPB
$1.38B
| $2.25M | ﹤0.01% |
33,950
+30,681
| +939% | +$2.03M |
|
190
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.23B
| $2.24M | ﹤0.01% |
69,569
+34,745
| +100% | +$1.12M |
|
191
Ovintiv
OVV
$10.6B
| $2.22M | ﹤0.01% |
61,583
+3,062
| +5% | +$110K |
|
192
Global Payments
GPN
$21.2B
| $2.21M | ﹤0.01% |
21,034
+7,027
| +50% | +$739K |
|
193
Voya Financial
VOYA
$7.35B
| $2.2M | ﹤0.01% |
+30,806
| New | +$2.2M |
|
194
Campbell Soup
CPB
$10B
| $2.19M | ﹤0.01% |
+39,854
| New | +$2.19M |
|
195
Vanguard S&P 500 Growth ETF
VOOG
$19.3B
| $2.16M | ﹤0.01% |
9,368
+333
| +4% | +$76.7K |
|
196
BJs Wholesale Club
BJ
$12.8B
| $2.15M | ﹤0.01% |
+28,252
| New | +$2.15M |
|
197
BridgeBio Pharma
BBIO
$10.1B
| $2.14M | ﹤0.01% |
+129,127
| New | +$2.14M |
|
198
Jabil
JBL
$22.6B
| $2.14M | ﹤0.01% |
24,234
+10,068
| +71% | +$887K |
|
199
Robinhood
HOOD
$89.4B
| $2.13M | ﹤0.01% |
219,722
+16,010
| +8% | +$155K |
|
200
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.19B
| $2.12M | ﹤0.01% |
+44,655
| New | +$2.12M |
|