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 |
Invesco QQQ Trust
QQQ
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
BZUN
476
Baozun
BZUN
$223M
| $844K | ﹤0.01% |
24,574
-7,828
| -24% | -$269K |
|
477
ARK Genomic Revolution ETF
ARKG
$1.03B
| $840K | ﹤0.01% |
9,013
-8,828
| -49% | -$823K |
|
478
Upbound Group
UPBD
$1.45B
| $840K | ﹤0.01% |
+21,945
| New | +$840K |
|
479
Leggett & Platt
LEG
$1.32B
| $836K | ﹤0.01% |
+18,872
| New | +$836K |
|
480
Blackstone
BX
$139B
| $833K | ﹤0.01% |
+12,867
| New | +$833K |
|
481
SBA Communications
SBAC
$20.7B
| $831K | ﹤0.01% |
+2,946
| New | +$831K |
|
|
CBD
482
DELISTED
Companhia Brasileira de Distribuicao
CBD
| $831K | ﹤0.01% |
58,096
+50,911
| +709% | +$728K |
|
483
Ocular Therapeutix
OCUL
$2.23B
| $829K | ﹤0.01% |
40,093
+35,574
| +787% | +$736K |
|
484
ARK Innovation ETF
ARKK
$7.19B
| $826K | ﹤0.01% |
6,643
-11,006
| -62% | -$1.37M |
|
485
BorgWarner
BWA
$9.31B
| $826K | ﹤0.01% |
24,298
+8,545
| +54% | +$290K |
|
486
Franco-Nevada
FNV
$38B
| $825K | ﹤0.01% |
6,589
-1,617
| -20% | -$202K |
|
487
Topgolf Callaway Brands
MODG
$1.68B
| $822K | ﹤0.01% |
34,256
+8,115
| +31% | +$195K |
|
488
CarMax
KMX
$8.98B
| $818K | ﹤0.01% |
8,669
+8,167
| +1,627% | +$771K |
|
489
Invesco S&P 500 Equal Weight ETF
RSP
$74.1B
| $818K | ﹤0.01% |
6,421
-18,427
| -74% | -$2.35M |
|
490
Altice USA
ATUS
$1.09B
| $817K | ﹤0.01% |
21,582
-9,380
| -30% | -$355K |
|
491
CoreCivic
CXW
$2.18B
| $810K | ﹤0.01% |
123,684
+53,514
| +76% | +$350K |
|
492
United States Gasoline Fund
UGA
$78.3M
| $801K | ﹤0.01% |
32,988
+9,655
| +41% | +$234K |
|
493
Applied Therapeutics
APLT
$65.4M
| $799K | ﹤0.01% |
+36,322
| New | +$799K |
|
494
LiveRamp
RAMP
$1.74B
| $799K | ﹤0.01% |
+10,920
| New | +$799K |
|
495
ProShares Ultra Financials
UYG
$860M
| $796K | ﹤0.01% |
18,821
+1,999
| +12% | +$84.5K |
|
496
Kinder Morgan
KMI
$60.3B
| $795K | ﹤0.01% |
58,177
+33,094
| +132% | +$452K |
|
|
ABB
497
DELISTED
ABB Ltd.
ABB
| $795K | ﹤0.01% |
28,462
+16,020
| +129% | +$447K |
|
|
CNR
498
DELISTED
Cornerstone Building Brands, Inc.
CNR
| $794K | ﹤0.01% |
85,600
+37,184
| +77% | +$345K |
|
499
Sony
SONY
$171B
| $792K | ﹤0.01% |
+39,215
| New | +$792K |
|
|
TIGR
500
UP Fintech Holding
TIGR
$2B
| $789K | ﹤0.01% |
99,429
+76,980
| +343% | +$611K |
|