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 |
Alibaba
BABA
|
$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$97.6M |
| 3 |
Walt Disney
DIS
|
$73.4M |
| 4 |
Citigroup
C
|
$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$149M |
| 2 |
Amazon
AMZN
|
$107M |
| 3 |
SPDR Gold Trust
GLD
|
$58.6M |
| 4 |
Coinbase
COIN
|
$56.5M |
| 5 |
NVIDIA
NVDA
|
$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
226
Perrigo
PRGO
$3.12B
| $2.88M | ﹤0.01% |
89,475
+67,755
| +312% | +$2.18M |
|
227
Nexstar Media Group
NXST
$6.31B
| $2.88M | ﹤0.01% |
18,348
+5,903
| +47% | +$925K |
|
228
Ferguson
FERG
$47.8B
| $2.79M | ﹤0.01% |
14,452
+13,838
| +2,254% | +$2.67M |
|
229
UGI
UGI
$7.43B
| $2.79M | ﹤0.01% |
113,371
+13,173
| +13% | +$324K |
|
230
US Bancorp
USB
$75.9B
| $2.78M | ﹤0.01% |
64,345
-2,987
| -4% | -$129K |
|
231
BlackLine
BL
$3.32B
| $2.78M | ﹤0.01% |
44,452
+9,680
| +28% | +$604K |
|
232
Sphere Entertainment
SPHR
$1.76B
| $2.77M | ﹤0.01% |
81,629
+63,255
| +344% | +$2.15M |
|
233
Marvell Technology
MRVL
$54.6B
| $2.76M | ﹤0.01% |
45,804
-100,356
| -69% | -$6.05M |
|
234
BioMarin Pharmaceuticals
BMRN
$11.1B
| $2.75M | ﹤0.01% |
+28,503
| New | +$2.75M |
|
235
Evolent Health
EVH
$1.11B
| $2.72M | ﹤0.01% |
+82,478
| New | +$2.72M |
|
236
Apellis Pharmaceuticals
APLS
$3.55B
| $2.69M | ﹤0.01% |
44,954
-31,911
| -42% | -$1.91M |
|
237
SPDR S&P Homebuilders ETF
XHB
$2.01B
| $2.69M | ﹤0.01% |
+28,129
| New | +$2.69M |
|
238
Mobileye
MBLY
$12B
| $2.69M | ﹤0.01% |
+62,026
| New | +$2.69M |
|
239
Galicia Financial Group
GGAL
$6.44B
| $2.68M | ﹤0.01% |
155,337
+66,594
| +75% | +$1.15M |
|
240
MP Materials
MP
$11.2B
| $2.67M | ﹤0.01% |
134,546
+51,527
| +62% | +$1.02M |
|
241
Texas Roadhouse
TXRH
$11.2B
| $2.63M | ﹤0.01% |
21,521
+7,492
| +53% | +$916K |
|
242
Annaly Capital Management
NLY
$14.2B
| $2.61M | ﹤0.01% |
134,637
+60,912
| +83% | +$1.18M |
|
243
AbbVie
ABBV
$375B
| $2.6M | ﹤0.01% |
16,776
-107,476
| -86% | -$16.7M |
|
244
Ventas
VTR
$30.9B
| $2.58M | ﹤0.01% |
51,860
+32,624
| +170% | +$1.63M |
|
245
KE Holdings
BEKE
$22.4B
| $2.58M | ﹤0.01% |
159,167
+141,865
| +820% | +$2.3M |
|
246
Freshpet
FRPT
$2.7B
| $2.57M | ﹤0.01% |
29,646
+15,835
| +115% | +$1.37M |
|
247
KBR
KBR
$6.4B
| $2.57M | ﹤0.01% |
46,315
+19,028
| +70% | +$1.05M |
|
248
ConocoPhillips
COP
$116B
| $2.55M | ﹤0.01% |
+21,936
| New | +$2.55M |
|
249
Invesco S&P 500 Low Volatility ETF
SPLV
$7.99B
| $2.54M | ﹤0.01% |
+40,525
| New | +$2.54M |
|
250
Direxion Daily Financial Bull 3x Shares
FAS
$2.59B
| $2.52M | ﹤0.01% |
30,508
-8,610
| -22% | -$711K |
|