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 |
NVIDIA
NVDA
|
$29.3M |
| 2 |
Industrial Select Sector SPDR Fund
XLI
|
$23.1M |
| 3 |
iShares Russell 2000 ETF
IWM
|
$18M |
| 4 |
Netflix
NFLX
|
$17.4M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$14M |
Top Sells
| 1 |
Invesco QQQ Trust
QQQ
|
$120M |
| 2 |
SPDR S&P 500 ETF Trust
SPY
|
$41.3M |
| 3 |
Walt Disney
DIS
|
$26.9M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
$13.8M |
| 5 |
Johnson & Johnson
JNJ
|
$11.3M |
Sector Composition
| 1 | Technology | 16.22% |
| 2 | Communication Services | 16.19% |
| 3 | Healthcare | 11.36% |
| 4 | Industrials | 9.74% |
| 5 | Consumer Discretionary | 8.61% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
RTN
226
DELISTED
Raytheon Company
RTN
| $1.06M | ﹤0.01% |
6,109
-6,939
| -53% | -$1.21M |
|
227
United Parks & Resorts
PRKS
$2.9B
| $1.06M | ﹤0.01% |
34,132
+14,963
| +78% | +$464K |
|
228
BlackBerry
BB
$2.29B
| $1.06M | ﹤0.01% |
141,787
+45,007
| +47% | +$336K |
|
229
AB InBev
BUD
$116B
| $1.04M | ﹤0.01% |
11,742
-20,788
| -64% | -$1.84M |
|
230
Truist Financial
TFC
$59.3B
| $1.03M | ﹤0.01% |
21,004
-60,063
| -74% | -$2.95M |
|
|
GOOS
231
Canada Goose Holdings
GOOS
$1.47B
| $1.03M | ﹤0.01% |
26,601
+7,490
| +39% | +$290K |
|
232
Coherus Oncology, Inc. Common Stock
CHRS
$159M
| $1.03M | ﹤0.01% |
46,556
+42,593
| +1,075% | +$940K |
|
233
Deckers Outdoor
DECK
$17.4B
| $1.02M | ﹤0.01% |
+34,896
| New | +$1.02M |
|
234
Home Depot
HD
$418B
| $1.02M | ﹤0.01% |
+4,900
| New | +$1.02M |
|
235
The Communication Services Select Sector SPDR Fund
XLC
$25.8B
| $1.02M | ﹤0.01% |
+20,675
| New | +$1.02M |
|
236
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $1.02M | ﹤0.01% |
11,509
-14,421
| -56% | -$1.27M |
|
237
O'Reilly Automotive
ORLY
$90.3B
| $1.02M | ﹤0.01% |
41,295
+26,475
| +179% | +$651K |
|
238
Canadian Solar
CSIQ
$731M
| $1.02M | ﹤0.01% |
46,512
-21,430
| -32% | -$468K |
|
239
Vanguard FTSE Emerging Markets ETF
VWO
$98.1B
| $1.01M | ﹤0.01% |
23,853
-69,995
| -75% | -$2.98M |
|
240
ProShares VIX Short-Term Futures ETF
VIXY
$83.7M
| $1.01M | ﹤0.01% |
+591
| New | +$1.01M |
|
241
Paysign
PAYS
$289M
| $1.01M | ﹤0.01% |
+75,533
| New | +$1.01M |
|
242
Floor & Decor
FND
$9.45B
| $1.01M | ﹤0.01% |
+24,070
| New | +$1.01M |
|
243
Charter Communications
CHTR
$36B
| $995K | ﹤0.01% |
+2,519
| New | +$995K |
|
244
Rogers Corp
ROG
$1.42B
| $995K | ﹤0.01% |
+5,770
| New | +$995K |
|
245
WisdomTree Japan Hedged Equity Fund
DXJ
$3.86B
| $993K | ﹤0.01% |
20,391
-14,523
| -42% | -$707K |
|
|
HUYA
246
Huya Inc
HUYA
$774M
| $993K | ﹤0.01% |
40,224
-17,674
| -31% | -$436K |
|
|
CLVS
247
DELISTED
Clovis Oncology, Inc.
CLVS
| $992K | ﹤0.01% |
66,740
+32,650
| +96% | +$485K |
|
|
WWE
248
DELISTED
World Wrestling Entertainment
WWE
| $988K | ﹤0.01% |
13,690
-5,238
| -28% | -$378K |
|
249
ProShares UltraShort S&P500
SDS
$441M
| $969K | ﹤0.01% |
6,314
-435
| -6% | -$66.8K |
|
|
SPLK
250
DELISTED
Splunk Inc
SPLK
| $968K | ﹤0.01% |
7,699
-19,206
| -71% | -$2.41M |
|