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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
901
CGI
GIB
$21B
| $172K | ﹤0.01% |
+2,541
| New | +$172K |
|
902
Trimble
TRMB
$19.7B
| $172K | ﹤0.01% |
+3,541
| New | +$172K |
|
|
MIC
903
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
| $172K | ﹤0.01% |
6,416
-34,161
| -84% | -$916K |
|
904
BlackLine
BL
$3.41B
| $170K | ﹤0.01% |
+1,905
| New | +$170K |
|
905
ICU Medical
ICUI
$3.33B
| $170K | ﹤0.01% |
934
-608
| -39% | -$111K |
|
906
Pacific Biosciences
PACB
$378M
| $170K | ﹤0.01% |
17,319
+13,991
| +420% | +$137K |
|
907
Knight Transportation
KNX
$6.97B
| $169K | ﹤0.01% |
4,167
+3,886
| +1,383% | +$158K |
|
908
NewMarket
NEU
$7.98B
| $168K | ﹤0.01% |
+493
| New | +$168K |
|
909
TechTarget
TTGT
$429M
| $168K | ﹤0.01% |
3,843
+2,817
| +275% | +$123K |
|
|
VER
910
DELISTED
VEREIT, Inc.
VER
| $168K | ﹤0.01% |
5,180
-1,593
| -24% | -$51.7K |
|
911
QuantumScape
QS
$5.01B
| $167K | ﹤0.01% |
+10,029
| New | +$167K |
|
912
UFP Industries
UFPI
$6B
| $167K | ﹤0.01% |
2,963
+2,012
| +212% | +$113K |
|
|
SPWR
913
DELISTED
SunPower Corporation Common Stock
SPWR
| $167K | ﹤0.01% |
13,421
+3,011
| +29% | +$37.5K |
|
914
Vishay Intertechnology
VSH
$2.1B
| $166K | ﹤0.01% |
10,708
+4,614
| +76% | +$71.5K |
|
|
VGR
915
DELISTED
Vector Group Ltd.
VGR
| $166K | ﹤0.01% |
+24,255
| New | +$166K |
|
916
Mercury Systems
MRCY
$4.38B
| $163K | ﹤0.01% |
2,111
-2,940
| -58% | -$227K |
|
917
Everest Group
EG
$14.6B
| $162K | ﹤0.01% |
823
-160
| -16% | -$31.5K |
|
918
PetMed Express
PETS
$58.5M
| $162K | ﹤0.01% |
5,143
-9,129
| -64% | -$288K |
|
919
Invesco Aerospace & Defense ETF
PPA
$6.31B
| $162K | ﹤0.01% |
2,913
+770
| +36% | +$42.8K |
|
|
AXU
920
DELISTED
Alexco Resource Corp.
AXU
| $162K | ﹤0.01% |
+61,689
| New | +$162K |
|
921
BWX Technologies
BWXT
$15.5B
| $161K | ﹤0.01% |
+2,866
| New | +$161K |
|
922
Shenandoah Telecom
SHEN
$752M
| $161K | ﹤0.01% |
3,627
+3,362
| +1,269% | +$149K |
|
|
TTCF
923
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $160K | ﹤0.01% |
6,780
+1,706
| +34% | +$40.3K |
|
|
SAFE
924
DELISTED
Safehold Inc.
SAFE
| $160K | ﹤0.01% |
2,590
+2,412
| +1,355% | +$149K |
|
925
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$576M
| $159K | ﹤0.01% |
16
-440
| -96% | -$4.37M |
|