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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
276
Teucrium Corn Fund
CORN
$48.8M
| $407K | 0.03% |
20,250
+17,048
| +532% | +$343K |
|
277
Shopify
SHOP
$186B
| $407K | 0.03% |
144,430
+126,790
| +719% | +$357K |
|
278
Ionis Pharmaceuticals
IONS
$10.3B
| $404K | 0.03% |
9,988
+6,784
| +212% | +$274K |
|
279
Agios Pharmaceuticals
AGIO
$2.1B
| $403K | 0.03% |
9,933
+9,812
| +8,109% | +$398K |
|
280
ProShares UltraShort FTSE Europe
EPV
$15.9M
| $403K | 0.03% |
+1,369
| New | +$403K |
|
|
ZBIO
281
DELISTED
ProShares UltraPro Short NASDAQ Biotechnology
ZBIO
| $400K | 0.03% |
+5,531
| New | +$400K |
|
282
Dillards
DDS
$9.03B
| $399K | 0.03% |
+4,705
| New | +$399K |
|
|
INFN
283
DELISTED
Infinera Corporation Common Stock
INFN
| $398K | 0.03% |
24,820
+11,840
| +91% | +$190K |
|
284
Voya Financial
VOYA
$7.3B
| $392K | 0.03% |
13,191
+7,982
| +153% | +$237K |
|
285
CarMax
KMX
$9.21B
| $386K | 0.03% |
7,560
+6,144
| +434% | +$314K |
|
286
Public Storage
PSA
$51.7B
| $386K | 0.03% |
1,402
+58
| +4% | +$16K |
|
287
iShares Russell Mid-Cap Value ETF
IWS
$14.1B
| $383K | 0.03% |
+5,411
| New | +$383K |
|
|
CLVS
288
DELISTED
Clovis Oncology, Inc.
CLVS
| $382K | 0.03% |
19,909
+14,888
| +297% | +$286K |
|
|
INVX
289
Innovex International, Inc.
INVX
$1.14B
| $378K | 0.03% |
6,244
-3,980
| -39% | -$241K |
|
290
Technology Select Sector SPDR Fund
XLK
$84.7B
| $376K | 0.03% |
+8,489
| New | +$376K |
|
291
Liberty Global Class A
LBTYA
$3.99B
| $375K | 0.03% |
11,192
+4,013
| +56% | +$134K |
|
292
Rockwell Medical
RMTI
$62M
| $374K | 0.03% |
+4,536
| New | +$374K |
|
293
MiMedx Group
MDXG
$1.06B
| $373K | 0.03% |
42,683
+2,223
| +5% | +$19.4K |
|
294
T-Mobile US
TMUS
$273B
| $373K | 0.03% |
9,764
+7,059
| +261% | +$270K |
|
295
Norwegian Cruise Line
NCLH
$11.5B
| $371K | 0.03% |
+6,717
| New | +$371K |
|
296
Dycom Industries
DY
$7.31B
| $369K | 0.03% |
5,718
-5,422
| -49% | -$350K |
|
297
NetApp
NTAP
$24.2B
| $368K | 0.03% |
13,486
+4,871
| +57% | +$133K |
|
298
Puma Biotechnology
PBYI
$230M
| $368K | 0.03% |
12,558
+567
| +5% | +$16.6K |
|
299
AstraZeneca
AZN
$252B
| $367K | 0.03% |
+13,047
| New | +$367K |
|
300
SPDR S&P Insurance ETF
KIE
$822M
| $365K | 0.03% |
+15,837
| New | +$365K |
|