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 |
Invesco QQQ Trust
QQQ
|
$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
$75.9M |
| 3 |
NVIDIA
NVDA
|
$42.6M |
| 4 |
Netflix
NFLX
|
$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$24.3M |
| 5 |
Broadcom
AVGO
|
$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
UNIT
226
Uniti Group
UNIT
$1.59B
| $1.35M | ﹤0.01% |
+143,909
| New | +$1.35M |
|
227
Baxter International
BAX
$12.5B
| $1.33M | ﹤0.01% |
15,451
+4,966
| +47% | +$427K |
|
228
Ryman Hospitality Properties
RHP
$6.35B
| $1.33M | ﹤0.01% |
38,449
+9,916
| +35% | +$343K |
|
229
Amicus Therapeutics
FOLD
$2.46B
| $1.33M | ﹤0.01% |
88,073
+65,695
| +294% | +$991K |
|
230
OneMain Financial
OMF
$7.31B
| $1.32M | ﹤0.01% |
53,827
+48,514
| +913% | +$1.19M |
|
231
WisdomTree India Earnings Fund ETF
EPI
$2.89B
| $1.3M | ﹤0.01% |
64,858
-2,820
| -4% | -$56.5K |
|
232
iShares MSCI Australia ETF
EWA
$1.53B
| $1.29M | ﹤0.01% |
67,133
+67,033
| +67,033% | +$1.29M |
|
233
Invesco CurrencyShares Euro Currency Trust
FXE
$530M
| $1.29M | ﹤0.01% |
12,188
-41,334
| -77% | -$4.38M |
|
234
QuidelOrtho
QDEL
$1.95B
| $1.29M | ﹤0.01% |
5,769
-9,816
| -63% | -$2.19M |
|
|
KSU
235
DELISTED
Kansas City Southern
KSU
| $1.28M | ﹤0.01% |
8,560
+7,996
| +1,418% | +$1.19M |
|
236
National Healthcare
NHC
$1.78B
| $1.27M | ﹤0.01% |
20,081
-397
| -2% | -$25.2K |
|
237
SPDR S&P MidCap 400 ETF Trust
MDY
$24B
| $1.27M | ﹤0.01% |
+3,908
| New | +$1.27M |
|
|
LSI
238
DELISTED
Life Storage, Inc.
LSI
| $1.27M | ﹤0.01% |
20,028
-28,769
| -59% | -$1.82M |
|
|
CCXI
239
DELISTED
ChemoCentryx, Inc.
CCXI
| $1.27M | ﹤0.01% |
21,997
+13,476
| +158% | +$775K |
|
|
HTO
240
H2O America Common Stock
HTO
$1.78B
| $1.26M | ﹤0.01% |
+20,295
| New | +$1.26M |
|
241
Teva Pharmaceuticals
TEVA
$21.7B
| $1.26M | ﹤0.01% |
102,175
-146,352
| -59% | -$1.8M |
|
242
General Mills
GIS
$27B
| $1.25M | ﹤0.01% |
+20,309
| New | +$1.25M |
|
243
Direxion Daily MSCI India Bull 2X Shares
INDL
$66.3M
| $1.25M | ﹤0.01% |
60,719
+58,989
| +3,410% | +$1.21M |
|
|
ITCI
244
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $1.25M | ﹤0.01% |
48,634
+9,809
| +25% | +$252K |
|
|
MIC
245
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
| $1.25M | ﹤0.01% |
40,577
-3,748
| -8% | -$115K |
|
|
KL
246
DELISTED
Kirkland Lake Gold Ltd Ordinary
KL
| $1.24M | ﹤0.01% |
30,110
+15,553
| +107% | +$641K |
|
247
Domino's
DPZ
$15.7B
| $1.23M | ﹤0.01% |
+3,328
| New | +$1.23M |
|
248
Marathon Petroleum
MPC
$54.8B
| $1.23M | ﹤0.01% |
32,841
+32,591
| +13,036% | +$1.22M |
|
249
Crown Castle
CCI
$41.9B
| $1.22M | ﹤0.01% |
+7,303
| New | +$1.22M |
|
250
Coherent
COHR
$15.2B
| $1.21M | ﹤0.01% |
+25,601
| New | +$1.21M |
|