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
|
+$54.6M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$52.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$40.9M |
| 4 |
Apple
AAPL
|
+$16.5M |
| 5 |
Visa
V
|
+$12M |
Top Sells
| 1 |
Amazon
AMZN
|
+$98.7M |
| 2 |
Meta Platforms (Facebook)
META
|
+$70.7M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$33.4M |
| 4 |
Goldman Sachs
GS
|
+$30.2M |
| 5 |
Boeing
BA
|
+$26.5M |
Sector Composition
| 1 | Communication Services | 14.71% |
| 2 | Consumer Discretionary | 14.32% |
| 3 | Technology | 11.86% |
| 4 | Financials | 7.38% |
| 5 | Industrials | 6.44% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
Gentex
GNTX
$6.26B
| $129K | ﹤0.01% |
+6,431
| New | +$129K |
|
777
ProShares UltraPro Short 20+ Year Treasury
TTT
$21.5M
| $129K | ﹤0.01% |
+1,258
| New | +$129K |
|
778
Wheaton Precious Metals
WPM
$47.9B
| $129K | ﹤0.01% |
6,608
+3,884
| +143% | +$75.8K |
|
779
Meritage Homes
MTH
$5.72B
| $128K | ﹤0.01% |
+7,022
| New | +$128K |
|
780
iShares Mortgage Real Estate ETF
REM
$619M
| $128K | ﹤0.01% |
3,224
+2,826
| +710% | +$112K |
|
|
VIA
781
DELISTED
Via Renewables, Inc. Class A Common Stock
VIA
| $128K | ﹤0.01% |
+3,468
| New | +$128K |
|
|
CONE
782
DELISTED
CyrusOne Inc Common Stock
CONE
| $128K | ﹤0.01% |
2,433
+1,601
| +192% | +$84.2K |
|
783
Interactive Brokers
IBKR
$28.1B
| $127K | ﹤0.01% |
9,356
-15,888
| -63% | -$216K |
|
|
VRN
784
DELISTED
Veren
VRN
| $127K | ﹤0.01% |
42,242
-4,443
| -10% | -$13.4K |
|
|
LONE
785
DELISTED
Lonestar Resources US Inc. Class A Common Stock
LONE
| $127K | ﹤0.01% |
34,993
+28,279
| +421% | +$103K |
|
786
PBF Energy
PBF
$3.32B
| $126K | ﹤0.01% |
3,884
-17,442
| -82% | -$566K |
|
787
Trupanion
TRUP
$1.87B
| $126K | ﹤0.01% |
4,962
+4,952
| +49,520% | +$126K |
|
788
IQVIA
IQV
$32.2B
| $125K | ﹤0.01% |
1,082
-5,589
| -84% | -$646K |
|
789
FMC
FMC
$4.69B
| $124K | ﹤0.01% |
+1,940
| New | +$124K |
|
790
Kforce
KFRC
$567M
| $124K | ﹤0.01% |
+4,021
| New | +$124K |
|
791
Sally Beauty Holdings
SBH
$1.48B
| $124K | ﹤0.01% |
+7,318
| New | +$124K |
|
792
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.57B
| $123K | ﹤0.01% |
638
-4,899
| -88% | -$944K |
|
|
CRC
793
DELISTED
California Resources Corporation
CRC
| $123K | ﹤0.01% |
7,264
-35,167
| -83% | -$595K |
|
794
Dell
DELL
$85.8B
| $122K | ﹤0.01% |
+4,933
| New | +$122K |
|
795
ABM Industries
ABM
$2.87B
| $121K | ﹤0.01% |
3,775
-1,147
| -23% | -$36.8K |
|
796
Global X MSCI China Consumer Discretionary ETF
CHIQ
$247M
| $121K | ﹤0.01% |
9,399
-152
| -2% | -$1.96K |
|
797
Five Below
FIVE
$7.99B
| $121K | ﹤0.01% |
+1,192
| New | +$121K |
|
798
WPP
WPP
$5.77B
| $121K | ﹤0.01% |
+2,209
| New | +$121K |
|
799
Brookdale Senior Living
BKD
$1.75B
| $119K | ﹤0.01% |
+17,872
| New | +$119K |
|
800
Equifax
EFX
$31.8B
| $119K | ﹤0.01% |
1,286
+735
| +133% | +$68K |
|