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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
251
Diamondback Energy
FANG
$40.7B
| $1.04M | 0.05% |
+10,036
| New | +$1.04M |
|
|
OCLR
252
DELISTED
Oclaro Inc.
OCLR
| $1.03M | 0.04% |
105,386
+50,897
| +93% | +$499K |
|
|
STRP
253
DELISTED
Straight Path Communications Inc.
STRP
| $1.03M | 0.04% |
28,756
+28,625
| +21,851% | +$1.03M |
|
|
BBL
254
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $1.03M | 0.04% |
32,991
+32,080
| +3,521% | +$999K |
|
|
EBIX
255
DELISTED
Ebix Inc
EBIX
| $1.03M | 0.04% |
+16,743
| New | +$1.03M |
|
256
Parker-Hannifin
PH
$95.7B
| $1.01M | 0.04% |
6,328
+2,740
| +76% | +$439K |
|
257
Lowe's Companies
LOW
$150B
| $1.01M | 0.04% |
12,255
+6,838
| +126% | +$562K |
|
|
PNK
258
DELISTED
Pinnacle Entertainment Inc.
PNK
| $1.01M | 0.04% |
51,577
+20,857
| +68% | +$407K |
|
259
Take-Two Interactive
TTWO
$46.1B
| $1.01M | 0.04% |
16,958
+14,270
| +531% | +$846K |
|
260
KLA
KLAC
$138B
| $1M | 0.04% |
10,520
+2,751
| +35% | +$262K |
|
261
Vodafone
VOD
$27.5B
| $999K | 0.04% |
37,819
+397
| +1% | +$10.5K |
|
|
CLR
262
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $997K | 0.04% |
21,969
+17,808
| +428% | +$808K |
|
263
Novartis
NVS
$237B
| $994K | 0.04% |
+14,938
| New | +$994K |
|
|
AGN
264
DELISTED
Allergan plc
AGN
| $983K | 0.04% |
+4,115
| New | +$983K |
|
|
POT
265
DELISTED
Potash Corp Of Saskatchewan
POT
| $967K | 0.04% |
+56,627
| New | +$967K |
|
266
Evolent Health
EVH
$1.01B
| $962K | 0.04% |
43,171
+31,992
| +286% | +$713K |
|
267
Madison Square Garden
MSGS
$5.17B
| $962K | 0.04% |
6,756
+2,525
| +60% | +$360K |
|
|
NSR
268
DELISTED
Neustar Inc
NSR
| $962K | 0.04% |
+29,030
| New | +$962K |
|
|
WLL
269
DELISTED
Whiting Petroleum Corporation
WLL
| $960K | 0.04% |
+338
| New | +$960K |
|
270
Esperion Therapeutics
ESPR
$554M
| $958K | 0.04% |
27,155
+12,802
| +89% | +$452K |
|
271
Clorox
CLX
$15.2B
| $956K | 0.04% |
+7,091
| New | +$956K |
|
272
Antero Resources
AR
$9.85B
| $955K | 0.04% |
41,878
+20,642
| +97% | +$471K |
|
273
Molina Healthcare
MOH
$9.74B
| $948K | 0.04% |
20,809
+20,159
| +3,101% | +$918K |
|
274
AutoZone
AZO
$69.1B
| $945K | 0.04% |
1,308
+795
| +155% | +$574K |
|
275
Ford
F
$46.7B
| $939K | 0.04% |
80,728
-19,424
| -19% | -$226K |
|