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 |
Alphabet (Google) Class C
GOOG
|
$54.1M |
| 2 |
Apple
AAPL
|
$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
$16.5M |
| 4 |
IBM
IBM
|
$13.4M |
| 5 |
Baidu
BIDU
|
$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 2 |
McDonald's
MCD
|
$8.52M |
| 3 |
Ralph Lauren
RL
|
$5.22M |
| 4 |
Intel
INTC
|
$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ANAC
251
DELISTED
ANACOR PHARMACEUTICALS INC COM
ANAC
| $481K | 0.04% |
+6,216
| New | +$481K |
|
252
Phillips 66
PSX
$53.2B
| $478K | 0.04% |
+5,940
| New | +$478K |
|
253
Burlington
BURL
$18.4B
| $477K | 0.04% |
+9,317
| New | +$477K |
|
254
Chemed
CHE
$6.79B
| $472K | 0.04% |
3,605
+3,343
| +1,276% | +$438K |
|
255
Voya Financial
VOYA
$7.38B
| $472K | 0.04% |
10,160
+9,445
| +1,321% | +$439K |
|
|
MDCO
256
DELISTED
Medicines Co
MDCO
| $472K | 0.04% |
16,525
-2,885
| -15% | -$82.4K |
|
|
SYT
257
DELISTED
Syngenta Ag
SYT
| $470K | 0.04% |
5,760
+5,065
| +729% | +$413K |
|
|
HES
258
DELISTED
Hess
HES
| $467K | 0.04% |
6,996
+2,400
| +52% | +$160K |
|
259
Corpay
CPAY
$22.4B
| $463K | 0.04% |
+2,971
| New | +$463K |
|
260
Entergy
ETR
$39.2B
| $458K | 0.04% |
13,004
-246
| -2% | -$8.66K |
|
261
Stratasys
SSYS
$871M
| $457K | 0.04% |
13,107
+2,224
| +20% | +$77.5K |
|
|
MDRX
262
DELISTED
Veradigm Inc. Common Stock
MDRX
| $456K | 0.04% |
33,384
+32,346
| +3,116% | +$442K |
|
|
SCTY
263
DELISTED
SolarCity Corporation
SCTY
| $456K | 0.04% |
+8,523
| New | +$456K |
|
264
Honeywell
HON
$136B
| $452K | 0.04% |
4,657
+813
| +21% | +$78.9K |
|
|
BPL
265
DELISTED
Buckeye Partners, L.P.
BPL
| $451K | 0.04% |
6,103
+1,391
| +30% | +$103K |
|
|
RHT
266
DELISTED
Red Hat Inc
RHT
| $446K | 0.04% |
+5,875
| New | +$446K |
|
267
iShares US Real Estate ETF
IYR
$3.76B
| $441K | 0.04% |
6,188
-23,334
| -79% | -$1.66M |
|
268
Sherwin-Williams
SHW
$92.9B
| $441K | 0.04% |
4,821
+1,089
| +29% | +$99.6K |
|
269
Direxion Daily 20+ Year Treasury Bear 3X Shares
TMV
$166M
| $440K | 0.04% |
5,160
+5,120
| +12,800% | +$437K |
|
270
Zimmer Biomet
ZBH
$20.9B
| $440K | 0.04% |
+4,157
| New | +$440K |
|
271
Nu Skin
NUS
$569M
| $436K | 0.04% |
9,264
+6,855
| +285% | +$323K |
|
|
BRLI
272
DELISTED
BIO-REFERENCE LABS INC-NEW-
BRLI
| $436K | 0.04% |
+10,583
| New | +$436K |
|
273
Vertex Pharmaceuticals
VRTX
$102B
| $431K | 0.04% |
3,493
-8,188
| -70% | -$1.01M |
|
|
RUSL
274
DELISTED
Direxion Daily Russia Bull 2X Shares
RUSL
| $431K | 0.04% |
+8,883
| New | +$431K |
|
275
SL Green Realty
SLG
$4.4B
| $425K | 0.04% |
4,000
+1,005
| +34% | +$107K |
|