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 | |
|---|---|---|---|---|---|---|
|
PENG
626
Penguin Solutions, Inc. Ordinary Shares
PENG
$1.34B
| $775K | ﹤0.01% |
21,862
-61,756
| -74% | -$2.19M |
|
627
FedEx
FDX
$53.3B
| $772K | ﹤0.01% |
2,987
-17,088
| -85% | -$4.42M |
|
628
Global X Cybersecurity ETF
BUG
$1.12B
| $770K | ﹤0.01% |
24,268
+15,129
| +166% | +$480K |
|
629
Equinox Gold
EQX
$8.4B
| $770K | ﹤0.01% |
113,949
-27,742
| -20% | -$187K |
|
630
Ares Capital
ARCC
$15.8B
| $769K | ﹤0.01% |
36,306
+20,348
| +128% | +$431K |
|
631
Invesco S&P SmallCap 600 Pure Value ETF
RZV
$222M
| $767K | ﹤0.01% |
+7,972
| New | +$767K |
|
632
Editas Medicine
EDIT
$230M
| $764K | ﹤0.01% |
28,796
-67,080
| -70% | -$1.78M |
|
|
GRTS
633
DELISTED
Gritstone bio, Inc. Common Stock
GRTS
| $762K | ﹤0.01% |
+59,327
| New | +$762K |
|
634
American Well
AMWL
$106M
| $760K | ﹤0.01% |
6,298
+2,414
| +62% | +$291K |
|
635
Teucrium Corn Fund
CORN
$48.5M
| $758K | ﹤0.01% |
35,213
+25,280
| +255% | +$544K |
|
636
WM Technology
MAPS
$131M
| $755K | ﹤0.01% |
126,414
+124,519
| +6,571% | +$744K |
|
637
Conduent
CNDT
$442M
| $754K | ﹤0.01% |
+141,372
| New | +$754K |
|
638
First Trust NASDAQ Cybersecurity ETF
CIBR
$10.8B
| $743K | ﹤0.01% |
14,076
+1,101
| +8% | +$58.1K |
|
639
XPO
XPO
$15.3B
| $743K | ﹤0.01% |
16,170
-7,352
| -31% | -$338K |
|
640
Gevo
GEVO
$392M
| $739K | ﹤0.01% |
+172,826
| New | +$739K |
|
641
SPDR Portfolio S&P 500 Value ETF
SPYV
$28.1B
| $739K | ﹤0.01% |
+17,605
| New | +$739K |
|
642
iShares Russell 1000 Value ETF
IWD
$63.4B
| $738K | ﹤0.01% |
+4,395
| New | +$738K |
|
643
Comerica
CMA
$8.9B
| $737K | ﹤0.01% |
8,479
-15,271
| -64% | -$1.33M |
|
|
SIX
644
DELISTED
Six Flags Entertainment Corp.
SIX
| $736K | ﹤0.01% |
17,307
-16,244
| -48% | -$691K |
|
645
Tecnoglass
TGLS
$3.36B
| $734K | ﹤0.01% |
+28,028
| New | +$734K |
|
646
Flowserve
FLS
$7.35B
| $733K | ﹤0.01% |
23,977
+21,023
| +712% | +$643K |
|
647
Liberty Global Class C
LBTYK
$3.99B
| $730K | ﹤0.01% |
26,016
-1,376
| -5% | -$38.6K |
|
648
Synaptics
SYNA
$2.67B
| $730K | ﹤0.01% |
2,522
-1,107
| -31% | -$320K |
|
649
PPL Corp
PPL
$26.5B
| $729K | ﹤0.01% |
24,260
-593
| -2% | -$17.8K |
|
650
Azenta
AZTA
$1.34B
| $728K | ﹤0.01% |
+7,063
| New | +$728K |
|