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 |
Apple
AAPL
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
PCL
276
DELISTED
PLUM CREEK TIMBER CO (REIT)
PCL
| $419K | 0.03% |
8,781
+8,215
| +1,451% | +$392K |
|
277
United Parcel Service
UPS
$72.1B
| $411K | 0.03% |
+4,281
| New | +$411K |
|
278
AvalonBay Communities
AVB
$27.6B
| $410K | 0.03% |
+2,229
| New | +$410K |
|
279
ProShares Ultra Financials
UYG
$894M
| $410K | 0.03% |
17,364
+11,796
| +212% | +$279K |
|
280
Direxion Daily Small Cap Bear 3x Shares
TZA
$272M
| $406K | 0.03% |
+226
| New | +$406K |
|
|
TCS
281
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
| $405K | 0.03% |
3,295
+3,085
| +1,469% | +$379K |
|
282
LendingClub
LC
$2.02B
| $403K | 0.03% |
+7,305
| New | +$403K |
|
|
SOHU
283
Sohu.com
SOHU
$473M
| $403K | 0.03% |
+7,056
| New | +$403K |
|
284
Entergy
ETR
$39.2B
| $400K | 0.03% |
11,728
-4,686
| -29% | -$160K |
|
285
Autohome
ATHM
$3.48B
| $395K | 0.03% |
+11,317
| New | +$395K |
|
286
Royal Bank of Canada
RY
$206B
| $394K | 0.03% |
+7,354
| New | +$394K |
|
287
Estee Lauder
EL
$31.7B
| $393K | 0.03% |
4,467
+5
| +0.1% | +$440 |
|
288
IQVIA
IQV
$32.3B
| $393K | 0.03% |
+5,736
| New | +$393K |
|
|
MXIM
289
DELISTED
Maxim Integrated Products
MXIM
| $388K | 0.03% |
+10,214
| New | +$388K |
|
290
JB Hunt Transport Services
JBHT
$13.1B
| $387K | 0.03% |
+5,286
| New | +$387K |
|
|
SWIR
291
DELISTED
Sierra Wireless
SWIR
| $385K | 0.03% |
24,475
+8,976
| +58% | +$141K |
|
|
SGG
292
DELISTED
iPath Bloomberg Sugar Subindex Total Return ETN due June 24, 2038
SGG
| $384K | 0.03% |
+11,074
| New | +$384K |
|
293
Guidewire Software
GWRE
$20.8B
| $383K | 0.03% |
6,380
+4,393
| +221% | +$264K |
|
294
IAC Inc
IAC
$3.05B
| $382K | 0.03% |
35,682
+9,311
| +35% | +$99.7K |
|
|
VLRS
295
Controladora Vuela Compañía de Aviación
VLRS
$769M
| $381K | 0.03% |
22,250
+18,157
| +444% | +$311K |
|
296
Cisco
CSCO
$272B
| $380K | 0.03% |
+14,012
| New | +$380K |
|
297
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$417M
| $380K | 0.03% |
450
+369
| +456% | +$312K |
|
|
DYN
298
DELISTED
Dynegy, Inc.
DYN
| $380K | 0.03% |
28,409
+25,352
| +829% | +$339K |
|
|
IHS
299
DELISTED
IHS INC CL-A COM STK
IHS
| $380K | 0.03% |
3,209
+2,925
| +1,030% | +$346K |
|
300
MiMedx Group
MDXG
$1.06B
| $379K | 0.03% |
40,460
+37,417
| +1,230% | +$350K |
|