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 | |
|---|---|---|---|---|---|---|
351
Direxion Daily Homebuilders & Supplies Bull 3X Shares
NAIL
$643M
| $1.08M | ﹤0.01% |
+17,377
| New | +$1.08M |
|
352
AeroVironment
AVAV
$11.6B
| $1.08M | ﹤0.01% |
9,064
+5,875
| +184% | +$700K |
|
353
TEGNA Inc
TGNA
$3.37B
| $1.08M | ﹤0.01% |
59,065
+44,103
| +295% | +$803K |
|
354
Conagra Brands
CAG
$9.34B
| $1.07M | ﹤0.01% |
40,234
+10,309
| +34% | +$275K |
|
355
iShares MSCI Japan ETF
EWJ
$15.6B
| $1.06M | ﹤0.01% |
15,426
-63,615
| -80% | -$4.36M |
|
356
Invesco CurrencyShares Euro Currency Trust
FXE
$531M
| $1.04M | ﹤0.01% |
10,429
-21,646
| -67% | -$2.16M |
|
357
Zeekr
ZK
$7.52B
| $1.04M | ﹤0.01% |
+43,176
| New | +$1.04M |
|
358
Birkenstock
BIRK
$8.85B
| $1.03M | ﹤0.01% |
22,530
+12,396
| +122% | +$568K |
|
359
Sprott Uranium Miners ETF
URNM
$1.76B
| $1.03M | ﹤0.01% |
31,633
+24,627
| +352% | +$799K |
|
360
Cal-Maine
CALM
$5.41B
| $1.02M | ﹤0.01% |
11,169
-1,260
| -10% | -$115K |
|
361
Genesis Energy
GEL
$2.02B
| $1.02M | ﹤0.01% |
64,740
-18,663
| -22% | -$293K |
|
362
Grupo Cibest S.A. American Depositary Shares (each representing four (4) Preferred Shares)
CIB
$12.8B
| $1.01M | ﹤0.01% |
+25,131
| New | +$1.01M |
|
|
SNDK
363
Sandisk Corporation Common Stock
SNDK
$10.4B
| $1.01M | ﹤0.01% |
+21,153
| New | +$1.01M |
|
364
Intellia Therapeutics
NTLA
$1.25B
| $1M | ﹤0.01% |
141,267
+30,736
| +28% | +$218K |
|
365
Velocity Financial
VEL
$735M
| $1M | ﹤0.01% |
53,545
+34,977
| +188% | +$654K |
|
366
-1x Short VIX Futures ETF
SVIX
$188M
| $997K | ﹤0.01% |
49,051
+47,126
| +2,448% | +$958K |
|
367
Western Midstream Partners
WES
$14.6B
| $997K | ﹤0.01% |
+24,357
| New | +$997K |
|
368
UBS Group
UBS
$126B
| $988K | ﹤0.01% |
+32,263
| New | +$988K |
|
369
HF Sinclair
DINO
$9.89B
| $987K | ﹤0.01% |
30,036
+13,743
| +84% | +$452K |
|
370
Ecolab
ECL
$77.4B
| $986K | ﹤0.01% |
3,892
+3,044
| +359% | +$771K |
|
371
Vanguard High Dividend Yield ETF
VYM
$64.2B
| $978K | ﹤0.01% |
+7,586
| New | +$978K |
|
372
The GEO Group
GEO
$2.89B
| $977K | ﹤0.01% |
33,478
-6,571
| -16% | -$192K |
|
373
Atmos Energy
ATO
$26.2B
| $976K | ﹤0.01% |
6,315
+5,618
| +806% | +$868K |
|
374
Nucor
NUE
$33.1B
| $969K | ﹤0.01% |
+8,059
| New | +$969K |
|
375
Trump Media & Technology Group
DJT
$4.74B
| $969K | ﹤0.01% |
49,618
-105,415
| -68% | -$2.06M |
|