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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Mister Car Wash
MCW
$1.77B
| $596K | ﹤0.01% |
75,587
-16,830
| -18% | -$133K |
|
502
Sturm, Ruger & Co
RGR
$563M
| $596K | ﹤0.01% |
+15,189
| New | +$596K |
|
503
Li Auto
LI
$24.4B
| $592K | ﹤0.01% |
23,528
-322,268
| -93% | -$8.11M |
|
504
Invesco CurrencyShares British Pound Sterling Trust
FXB
$91.1M
| $590K | ﹤0.01% |
+4,748
| New | +$590K |
|
505
Star Bulk Carriers
SBLK
$2.24B
| $589K | ﹤0.01% |
37,896
-8,170
| -18% | -$127K |
|
506
Adecoagro
AGRO
$805M
| $587K | ﹤0.01% |
52,591
+51,291
| +3,945% | +$572K |
|
507
Regency Centers
REG
$13.1B
| $586K | ﹤0.01% |
+7,946
| New | +$586K |
|
508
Axalta
AXTA
$6.7B
| $585K | ﹤0.01% |
17,647
+10,757
| +156% | +$357K |
|
509
Papa John's
PZZA
$1.61B
| $583K | ﹤0.01% |
14,208
-4,800
| -25% | -$197K |
|
510
JetBlue
JBLU
$1.86B
| $582K | ﹤0.01% |
+120,947
| New | +$582K |
|
511
Union Pacific
UNP
$126B
| $581K | ﹤0.01% |
2,463
-7,979
| -76% | -$1.88M |
|
512
WisdomTree India Earnings Fund ETF
EPI
$2.93B
| $580K | ﹤0.01% |
+13,286
| New | +$580K |
|
513
Fastly
FSLY
$1.11B
| $578K | ﹤0.01% |
91,426
+46,070
| +102% | +$291K |
|
514
PAR Technology
PAR
$1.85B
| $576K | ﹤0.01% |
+9,395
| New | +$576K |
|
515
Sempra
SRE
$53.2B
| $575K | ﹤0.01% |
8,068
-16,485
| -67% | -$1.17M |
|
516
Amneal Pharmaceuticals
AMRX
$3.1B
| $574K | ﹤0.01% |
68,549
+68,278
| +25,195% | +$572K |
|
517
Solventum
SOLV
$12.4B
| $573K | ﹤0.01% |
7,546
-46,404
| -86% | -$3.52M |
|
518
Murphy Oil
MUR
$3.68B
| $572K | ﹤0.01% |
20,156
+14,298
| +244% | +$406K |
|
519
Assured Guaranty
AGO
$3.89B
| $571K | ﹤0.01% |
+6,484
| New | +$571K |
|
|
HSAI
520
Hesai Group
HSAI
$3.72B
| $571K | ﹤0.01% |
38,595
-4,889
| -11% | -$72.3K |
|
521
Teekay
TK
$721M
| $569K | ﹤0.01% |
86,700
-26,660
| -24% | -$175K |
|
|
CTEV
522
Claritev Corporation
CTEV
$1.11B
| $568K | ﹤0.01% |
27,536
+3,675
| +15% | +$75.8K |
|
523
APA Corp
APA
$8.08B
| $564K | ﹤0.01% |
26,849
-158,440
| -86% | -$3.33M |
|
524
Clearwater Paper
CLW
$341M
| $564K | ﹤0.01% |
22,255
-15,281
| -41% | -$387K |
|
525
First Trust Natural Gas ETF
FCG
$330M
| $560K | ﹤0.01% |
22,551
+20,645
| +1,083% | +$513K |
|