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 | |
|---|---|---|---|---|---|---|
451
Coty
COTY
$3.53B
| $919K | ﹤0.01% |
131,002
+49,604
| +61% | +$348K |
|
|
ROIC
452
DELISTED
Retail Opportunity Investments Corp.
ROIC
| $919K | ﹤0.01% |
68,665
+49,138
| +252% | +$658K |
|
453
Impinj
PI
$5.64B
| $913K | ﹤0.01% |
21,806
+3,228
| +17% | +$135K |
|
|
MTSC
454
DELISTED
MTS Systems Corp
MTSC
| $907K | ﹤0.01% |
15,597
+13,291
| +576% | +$773K |
|
455
ImmunityBio
IBRX
$2.42B
| $906K | ﹤0.01% |
67,988
+46,938
| +223% | +$625K |
|
|
CPE
456
DELISTED
Callon Petroleum Company
CPE
| $906K | ﹤0.01% |
68,917
+64,536
| +1,473% | +$848K |
|
457
Blackstone Mortgage Trust
BXMT
$3.41B
| $900K | ﹤0.01% |
+32,719
| New | +$900K |
|
458
Zebra Technologies
ZBRA
$15.7B
| $898K | ﹤0.01% |
+2,338
| New | +$898K |
|
459
SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$11.3B
| $897K | ﹤0.01% |
19,478
+19,078
| +4,770% | +$879K |
|
460
DXC Technology
DXC
$2.54B
| $896K | ﹤0.01% |
34,797
+19,709
| +131% | +$507K |
|
461
Liberty Global Class C
LBTYK
$3.99B
| $895K | ﹤0.01% |
+37,863
| New | +$895K |
|
|
SAIL
462
DELISTED
SailPoint Technologies Holdings, Inc. Common Stock
SAIL
| $891K | ﹤0.01% |
16,740
+10,792
| +181% | +$574K |
|
463
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$2.3B
| $883K | ﹤0.01% |
+22,056
| New | +$883K |
|
464
NeoGenomics
NEO
$978M
| $881K | ﹤0.01% |
16,367
+15,663
| +2,225% | +$843K |
|
465
JetBlue
JBLU
$1.87B
| $878K | ﹤0.01% |
60,413
-8,495
| -12% | -$123K |
|
466
Sprouts Farmers Market
SFM
$13B
| $870K | ﹤0.01% |
43,312
-11,321
| -21% | -$227K |
|
467
Team
TISI
$85.1M
| $867K | ﹤0.01% |
7,961
+7,146
| +877% | +$778K |
|
468
Waste Management
WM
$87.6B
| $863K | ﹤0.01% |
7,318
-14,708
| -67% | -$1.73M |
|
469
Vulcan Materials
VMC
$38.8B
| $862K | ﹤0.01% |
5,816
+3,383
| +139% | +$501K |
|
|
UNIT
470
Uniti Group
UNIT
$1.72B
| $861K | ﹤0.01% |
73,423
-65,565
| -47% | -$769K |
|
471
Monolithic Power Systems
MPWR
$41B
| $860K | ﹤0.01% |
+2,349
| New | +$860K |
|
472
Amplify Junior Silver Miners ETF
SILJ
$2.18B
| $855K | ﹤0.01% |
52,449
+24,545
| +88% | +$400K |
|
473
Cullen/Frost Bankers
CFR
$8.17B
| $853K | ﹤0.01% |
+9,779
| New | +$853K |
|
|
ITCI
474
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $853K | ﹤0.01% |
26,839
-3,368
| -11% | -$107K |
|
|
HIBB
475
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $847K | ﹤0.01% |
+18,362
| New | +$847K |
|