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 | |
|---|---|---|---|---|---|---|
|
FLG
226
Flagstar Financial, Inc.
FLG
$5.39B
| $1.69M | ﹤0.01% |
62,339
+35,077
| +129% | +$951K |
|
227
ReNew
RNW
$2.83B
| $1.67M | ﹤0.01% |
297,343
+61,166
| +26% | +$344K |
|
228
Consolidated Edison
ED
$35.4B
| $1.67M | ﹤0.01% |
17,422
+3,263
| +23% | +$312K |
|
|
HES
229
DELISTED
Hess
HES
| $1.66M | ﹤0.01% |
+12,547
| New | +$1.66M |
|
230
JPMorgan Equity Premium Income ETF
JEPI
$41.1B
| $1.66M | ﹤0.01% |
+30,406
| New | +$1.66M |
|
231
iShares S&P 500 Value ETF
IVE
$41B
| $1.66M | ﹤0.01% |
+10,919
| New | +$1.66M |
|
232
UiPath
PATH
$6.15B
| $1.66M | ﹤0.01% |
+94,311
| New | +$1.66M |
|
233
Aramark
ARMK
$10.2B
| $1.65M | ﹤0.01% |
+63,947
| New | +$1.65M |
|
234
Alphabet (Google) Class A
GOOGL
$2.84T
| $1.64M | ﹤0.01% |
15,789
-316,085
| -95% | -$32.8M |
|
235
Ambarella
AMBA
$3.54B
| $1.62M | ﹤0.01% |
+20,980
| New | +$1.62M |
|
236
Boston Properties
BXP
$12.2B
| $1.62M | ﹤0.01% |
29,931
-25,124
| -46% | -$1.36M |
|
237
Spotify
SPOT
$146B
| $1.6M | ﹤0.01% |
11,986
-20,824
| -63% | -$2.78M |
|
238
XP
XP
$9.96B
| $1.6M | ﹤0.01% |
134,893
+116,514
| +634% | +$1.38M |
|
239
Markel Group
MKL
$24.2B
| $1.59M | ﹤0.01% |
1,243
+935
| +304% | +$1.19M |
|
240
Global X Uranium ETF
URA
$4.17B
| $1.58M | ﹤0.01% |
79,130
+32,676
| +70% | +$651K |
|
241
SS&C Technologies
SSNC
$21.7B
| $1.57M | ﹤0.01% |
27,849
+20,452
| +276% | +$1.15M |
|
242
Coherent
COHR
$15.2B
| $1.55M | ﹤0.01% |
40,631
+34,449
| +557% | +$1.31M |
|
|
ISEE
243
DELISTED
IVERIC bio, Inc. Common Stock
ISEE
| $1.55M | ﹤0.01% |
63,605
+21,970
| +53% | +$534K |
|
244
Dollar Tree
DLTR
$20.6B
| $1.55M | ﹤0.01% |
+10,765
| New | +$1.55M |
|
245
Avantis US Small Cap Value ETF
AVUV
$18.4B
| $1.54M | ﹤0.01% |
+20,733
| New | +$1.54M |
|
246
Equinox Gold
EQX
$7.65B
| $1.53M | ﹤0.01% |
297,827
+109,351
| +58% | +$563K |
|
247
Range Resources
RRC
$8.27B
| $1.52M | ﹤0.01% |
+57,406
| New | +$1.52M |
|
248
Renaissance IPO ETF
IPO
$165M
| $1.52M | ﹤0.01% |
51,826
+462
| +0.9% | +$13.5K |
|
249
Mattel
MAT
$6.06B
| $1.51M | ﹤0.01% |
82,138
+27,211
| +50% | +$501K |
|
250
Zions Bancorporation
ZION
$8.34B
| $1.51M | ﹤0.01% |
+50,526
| New | +$1.51M |
|