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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
351
Tencent Music
TME
$38.9B
| $1.77M | ﹤0.01% |
257,822
-162,533
| -39% | -$1.11M |
|
352
Exelon
EXC
$43.5B
| $1.76M | ﹤0.01% |
+42,709
| New | +$1.76M |
|
353
Pultegroup
PHM
$27B
| $1.76M | ﹤0.01% |
30,717
-17,252
| -36% | -$986K |
|
354
CoreCivic
CXW
$2.19B
| $1.75M | ﹤0.01% |
175,695
+65,292
| +59% | +$651K |
|
355
Abbott
ABT
$230B
| $1.74M | ﹤0.01% |
+12,379
| New | +$1.74M |
|
356
iRobot
IRBT
$106M
| $1.74M | ﹤0.01% |
+26,427
| New | +$1.74M |
|
357
VICI Properties
VICI
$35.3B
| $1.74M | ﹤0.01% |
+57,776
| New | +$1.74M |
|
358
Pinnacle West Capital
PNW
$10.4B
| $1.73M | ﹤0.01% |
+24,501
| New | +$1.73M |
|
359
Murphy USA
MUSA
$7.55B
| $1.71M | ﹤0.01% |
8,599
+7,294
| +559% | +$1.45M |
|
360
CyberArk
CYBR
$23.7B
| $1.71M | ﹤0.01% |
9,854
-2,844
| -22% | -$493K |
|
361
iShares US Medical Devices ETF
IHI
$4.35B
| $1.71M | ﹤0.01% |
+25,895
| New | +$1.71M |
|
362
HSBC
HSBC
$230B
| $1.7M | ﹤0.01% |
56,355
+7,891
| +16% | +$238K |
|
363
Innoviz Technologies
INVZ
$375M
| $1.68M | ﹤0.01% |
264,776
+262,571
| +11,908% | +$1.66M |
|
364
McKesson
MCK
$87.8B
| $1.67M | ﹤0.01% |
6,726
-3,838
| -36% | -$954K |
|
|
ABMD
365
DELISTED
Abiomed Inc
ABMD
| $1.66M | ﹤0.01% |
4,633
+3,988
| +618% | +$1.43M |
|
|
VMW
366
DELISTED
VMware, Inc
VMW
| $1.66M | ﹤0.01% |
+14,331
| New | +$1.66M |
|
367
GSK
GSK
$82.1B
| $1.66M | ﹤0.01% |
30,066
+28,800
| +2,275% | +$1.59M |
|
368
SentinelOne
S
$6B
| $1.65M | ﹤0.01% |
+32,740
| New | +$1.65M |
|
369
S&P Global
SPGI
$167B
| $1.65M | ﹤0.01% |
3,499
-30,393
| -90% | -$14.3M |
|
370
Ambac
AMBC
$424M
| $1.65M | ﹤0.01% |
102,854
+101,894
| +10,614% | +$1.63M |
|
371
LyondellBasell Industries
LYB
$17.5B
| $1.65M | ﹤0.01% |
17,868
+9,939
| +125% | +$916K |
|
372
Zscaler
ZS
$44B
| $1.65M | ﹤0.01% |
5,123
-19,423
| -79% | -$6.24M |
|
|
BBL
373
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $1.64M | ﹤0.01% |
27,497
+13,096
| +91% | +$783K |
|
374
Boeing
BA
$174B
| $1.64M | ﹤0.01% |
8,150
-55,868
| -87% | -$11.2M |
|
375
Element Solutions
ESI
$6.22B
| $1.64M | ﹤0.01% |
+67,559
| New | +$1.64M |
|