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 | |
|---|---|---|---|---|---|---|
1326
Addus HomeCare
ADUS
$2.03B
| $46K | ﹤0.01% |
+474
| New | +$46K |
|
1327
Innovator IBD 50 ETF
FFTY
$80.7M
| $46K | ﹤0.01% |
+1,723
| New | +$46K |
|
1328
JELD-WEN Holding
JELD
$537M
| $46K | ﹤0.01% |
7,776
+3,025
| +64% | +$17.9K |
|
1329
Aspen Aerogels
ASPN
$543M
| $45K | ﹤0.01% |
7,080
+3,414
| +93% | +$21.7K |
|
1330
Armstrong World Industries
AWI
$8.5B
| $45K | ﹤0.01% |
325
-1,026
| -76% | -$142K |
|
1331
Vanguard Total International Bond ETF
BNDX
$68.4B
| $45K | ﹤0.01% |
938
+50
| +6% | +$2.4K |
|
1332
Delcath Systems
DCTH
$379M
| $45K | ﹤0.01% |
3,547
-5,954
| -63% | -$75.5K |
|
1333
Enhabit
EHAB
$399M
| $45K | ﹤0.01% |
5,172
+2,086
| +68% | +$18.2K |
|
1334
Expensify
EXFY
$178M
| $45K | ﹤0.01% |
15,121
-5,992
| -28% | -$17.8K |
|
1335
Factset
FDS
$13.7B
| $45K | ﹤0.01% |
+99
| New | +$45K |
|
1336
Federated Hermes
FHI
$4.16B
| $45K | ﹤0.01% |
+1,118
| New | +$45K |
|
1337
Precigen
PGEN
$1.13B
| $45K | ﹤0.01% |
30,418
-5,915
| -16% | -$8.75K |
|
1338
Arcus Biosciences
RCUS
$1.23B
| $45K | ﹤0.01% |
5,764
+4,837
| +522% | +$37.8K |
|
1339
Sigma Lithium
SGML
$602M
| $45K | ﹤0.01% |
+4,420
| New | +$45K |
|
|
UROY
1340
Uranium Royalty Corp
UROY
$420M
| $45K | ﹤0.01% |
+25,776
| New | +$45K |
|
|
YETH
1341
Roundhill Ether Covered Call Strategy ETF
YETH
$113M
| $45K | ﹤0.01% |
1,715
+1,666
| +3,400% | +$43.7K |
|
1342
Camden Property Trust
CPT
$11.7B
| $44K | ﹤0.01% |
367
+86
| +31% | +$10.3K |
|
1343
Dream Finders Homes
DFH
$2.7B
| $44K | ﹤0.01% |
1,956
+1,592
| +437% | +$35.8K |
|
1344
MaxLinear
MXL
$1.37B
| $44K | ﹤0.01% |
4,138
-19,546
| -83% | -$208K |
|
1345
Global X US Preferred ETF
PFFD
$2.37B
| $44K | ﹤0.01% |
2,361
+1,638
| +227% | +$30.5K |
|
1346
ProShares Short Financials
SEF
$9.18M
| $44K | ﹤0.01% |
1,290
+1,118
| +650% | +$38.1K |
|
1347
SPDR Portfolio Long Term Treasury ETF
SPTL
$11.8B
| $44K | ﹤0.01% |
1,649
-410
| -20% | -$10.9K |
|
1348
ProShares Ultra Real Estate
URE
$60.8M
| $44K | ﹤0.01% |
681
+388
| +132% | +$25.1K |
|
1349
Zynex
ZYXI
$44.8M
| $44K | ﹤0.01% |
20,385
+19,031
| +1,406% | +$41.1K |
|
1350
Galapagos
GLPG
$2.11B
| $43K | ﹤0.01% |
+1,724
| New | +$43K |
|