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 |
Advanced Micro Devices
AMD
|
$17.7M |
| 2 |
iShares MSCI EAFE ETF
EFA
|
$10.1M |
| 3 |
NIO
NIO
|
$7.66M |
| 4 |
Alibaba
BABA
|
$7.54M |
| 5 |
Micron Technology
MU
|
$6.73M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$101M |
| 2 |
SPDR Gold Trust
GLD
|
$15.2M |
| 3 |
Amazon
AMZN
|
$9.5M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$8.76M |
| 5 |
Technology Select Sector SPDR Fund
XLK
|
$7.41M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
551
Equinox Gold
EQX
$7.65B
| $979K | ﹤0.01% |
141,691
+400
| +0.3% | +$2.76K |
|
552
CryoPort
CYRX
$518M
| $976K | ﹤0.01% |
15,902
-300
| -2% | -$18.4K |
|
553
MSCI
MSCI
$42.9B
| $975K | ﹤0.01% |
1,827
-200
| -10% | -$107K |
|
554
Deutsche Bank
DB
$67.8B
| $971K | ﹤0.01% |
73,903
| – | – |
|
555
Roundhill Video Games ETF
NERD
$25.7M
| $969K | ﹤0.01% |
30,902
-100
| -0.3% | -$3.14K |
|
|
LOV
556
DELISTED
Spark Networks SE American Depositary Shares
LOV
| $968K | ﹤0.01% |
186,526
+529
| +0.3% | +$2.75K |
|
557
Axalta
AXTA
$6.89B
| $957K | ﹤0.01% |
31,275
| – | – |
|
558
Masco
MAS
$15.9B
| $957K | ﹤0.01% |
16,280
+119
| +0.7% | +$7K |
|
|
CANO
559
DELISTED
Cano Health, Inc.
CANO
| $956K | ﹤0.01% |
813
+92
| +13% | +$108K |
|
|
RFP
560
DELISTED
Resolute Forest Products Inc.
RFP
| $956K | ﹤0.01% |
79,206
-2,500
| -3% | -$30.2K |
|
561
VanEck Steel ETF
SLX
$83M
| $955K | ﹤0.01% |
15,509
-100
| -0.6% | -$6.16K |
|
562
Anterix
ATEX
$412M
| $950K | ﹤0.01% |
15,847
| – | – |
|
563
Perion Network
PERI
$413M
| $949K | ﹤0.01% |
45,059
+809
| +2% | +$17K |
|
564
National Beverage
FIZZ
$3.75B
| $945K | ﹤0.01% |
20,622
-2,493
| -11% | -$114K |
|
565
Calix
CALX
$3.96B
| $943K | ﹤0.01% |
20,146
+100
| +0.5% | +$4.68K |
|
566
Cracker Barrel
CBRL
$1.18B
| $942K | ﹤0.01% |
6,311
-300
| -5% | -$44.8K |
|
567
Procure Space ETF
UFO
$110M
| $941K | ﹤0.01% |
30,313
| – | – |
|
|
CRON
568
Cronos Group
CRON
$957M
| $939K | ﹤0.01% |
109,498
-483
| -0.4% | -$4.14K |
|
569
Performance Food Group
PFGC
$16.5B
| $937K | ﹤0.01% |
19,437
| – | – |
|
|
BZUN
570
Baozun
BZUN
$207M
| $929K | ﹤0.01% |
26,174
-2,700
| -9% | -$95.8K |
|
571
HF Sinclair
DINO
$9.56B
| $929K | ﹤0.01% |
28,125
-9
| -0% | -$297 |
|
572
Revvity
RVTY
$10.1B
| $928K | ﹤0.01% |
6,007
+3
| +0% | +$463 |
|
|
BBIG
573
DELISTED
Vinco Ventures, Inc. Common Stock
BBIG
| $928K | ﹤0.01% |
16,605
+201
| +1% | +$11.2K |
|
574
iShares Gold Trust
IAU
$52.6B
| $920K | ﹤0.01% |
27,219
| – | – |
|
575
Texas Roadhouse
TXRH
$11.2B
| $918K | ﹤0.01% |
9,450
+400
| +4% | +$38.9K |
|