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 |
Amazon
AMZN
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
VNTR
926
DELISTED
Venator Materials PLC
VNTR
| $132K | ﹤0.01% |
14,748
+13,383
| +980% | +$120K |
|
927
Rogers Corp
ROG
$1.52B
| $131K | ﹤0.01% |
895
+25
| +3% | +$3.66K |
|
|
GLOP
928
DELISTED
GASLOG PARTNERS LP
GLOP
| $131K | ﹤0.01% |
+5,261
| New | +$131K |
|
|
CRR
929
DELISTED
Carbo Ceramics Inc.
CRR
| $131K | ﹤0.01% |
+18,204
| New | +$131K |
|
930
Autohome
ATHM
$3.5B
| $130K | ﹤0.01% |
1,684
-612
| -27% | -$47.2K |
|
931
Kornit Digital
KRNT
$667M
| $130K | ﹤0.01% |
5,948
-4,411
| -43% | -$96.4K |
|
|
QD
932
Qudian
QD
$710M
| $130K | ﹤0.01% |
25,054
-10,276
| -29% | -$53.3K |
|
933
Vishay Precision Group
VPG
$423M
| $130K | ﹤0.01% |
3,483
+2,138
| +159% | +$79.8K |
|
|
TLRD
934
DELISTED
Tailored Brands, Inc.
TLRD
| $130K | ﹤0.01% |
5,200
+3,600
| +225% | +$90K |
|
935
CommScope
COMM
$3.67B
| $129K | ﹤0.01% |
4,218
+965
| +30% | +$29.5K |
|
936
Delek Logistics
DKL
$2.38B
| $129K | ﹤0.01% |
+3,797
| New | +$129K |
|
937
Helen of Troy
HELE
$567M
| $129K | ﹤0.01% |
+990
| New | +$129K |
|
|
MAG
938
DELISTED
MAG Silver
MAG
| $129K | ﹤0.01% |
16,014
+8,408
| +111% | +$67.7K |
|
939
Direxion Daily Technology Bear 3x Shares
TECS
$51.6M
| $129K | ﹤0.01% |
7
+4
| +133% | +$73.7K |
|
940
Viavi Solutions
VIAV
$2.74B
| $129K | ﹤0.01% |
+11,378
| New | +$129K |
|
941
Standard BioTools
LAB
$508M
| $128K | ﹤0.01% |
+17,096
| New | +$128K |
|
|
ZNGA
942
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $128K | ﹤0.01% |
31,945
+17,221
| +117% | +$69K |
|
943
Matador Resources
MTDR
$6.05B
| $126K | ﹤0.01% |
3,824
+2,542
| +198% | +$83.8K |
|
|
AVYA
944
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $126K | ﹤0.01% |
+5,705
| New | +$126K |
|
|
PTR
945
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $126K | ﹤0.01% |
+1,555
| New | +$126K |
|
946
Blackstone Mortgage Trust
BXMT
$3.39B
| $125K | ﹤0.01% |
+3,753
| New | +$125K |
|
|
KNDI
947
Kandi Technologies Group
KNDI
$115M
| $125K | ﹤0.01% |
25,932
+19,361
| +295% | +$93.3K |
|
948
Trane Technologies
TT
$92.3B
| $125K | ﹤0.01% |
1,226
-4,236
| -78% | -$432K |
|
|
PER
949
DELISTED
SANDRIDGE PERMIAN TRUST
PER
| $125K | ﹤0.01% |
47,543
+46,191
| +3,416% | +$121K |
|
950
Agnico Eagle Mines
AEM
$77.2B
| $124K | ﹤0.01% |
+3,642
| New | +$124K |
|