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
|
+$48.9M |
| 2 |
Boeing
BA
|
+$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
FedEx
FDX
|
+$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
+$17.5M |
| 4 |
Netflix
NFLX
|
+$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
876
Copel
ELP
$6.91B
| $100K | ﹤0.01% |
21,018
+16,313
| +347% | +$77.6K |
|
|
HIMX
877
Himax Technologies
HIMX
$1.45B
| $100K | ﹤0.01% |
44,187
+38,261
| +646% | +$86.6K |
|
878
Murphy USA
MUSA
$7.59B
| $99K | ﹤0.01% |
+1,166
| New | +$99K |
|
879
Nelnet
NNI
$4.51B
| $99K | ﹤0.01% |
+1,567
| New | +$99K |
|
880
STAAR Surgical
STAA
$1.39B
| $99K | ﹤0.01% |
3,853
-11,734
| -75% | -$301K |
|
881
Tidewater
TDW
$2.94B
| $99K | ﹤0.01% |
+6,554
| New | +$99K |
|
882
Travelzoo
TZOO
$106M
| $99K | ﹤0.01% |
9,339
-21,670
| -70% | -$230K |
|
|
PRMW
883
DELISTED
Primo Water Corporation
PRMW
| $99K | ﹤0.01% |
7,999
-376
| -4% | -$4.65K |
|
|
TAST
884
DELISTED
Carrols Restaurant Group, Inc.
TAST
| $99K | ﹤0.01% |
12,035
+11,593
| +2,623% | +$95.4K |
|
|
WBC
885
DELISTED
WABCO HOLDINGS INC.
WBC
| $99K | ﹤0.01% |
743
-2,257
| -75% | -$301K |
|
886
Axon Enterprise
AXON
$59B
| $98K | ﹤0.01% |
+1,731
| New | +$98K |
|
887
iShares MSCI Singapore ETF
EWS
$822M
| $98K | ﹤0.01% |
4,226
+2,503
| +145% | +$58K |
|
888
Theravance Biopharma
TBPH
$690M
| $98K | ﹤0.01% |
5,043
+1,172
| +30% | +$22.8K |
|
889
ProShares Ultra Technology
ROM
$816M
| $97K | ﹤0.01% |
+6,296
| New | +$97K |
|
|
PRFT
890
DELISTED
Perficient Inc
PRFT
| $97K | ﹤0.01% |
+2,533
| New | +$97K |
|
891
Gibraltar Industries
ROCK
$1.84B
| $96K | ﹤0.01% |
+2,110
| New | +$96K |
|
892
Grocery Outlet
GO
$1.75B
| $95K | ﹤0.01% |
+2,744
| New | +$95K |
|
893
Invesco KBW Bank ETF
KBWB
$4.98B
| $95K | ﹤0.01% |
1,862
+797
| +75% | +$40.7K |
|
894
VanEck Agribusiness ETF
MOO
$630M
| $95K | ﹤0.01% |
1,444
-5,333
| -79% | -$351K |
|
|
BCPC
895
Balchem Corporation
BCPC
$5.17B
| $95K | ﹤0.01% |
+965
| New | +$95K |
|
|
LHCG
896
DELISTED
LHC Group LLC
LHCG
| $95K | ﹤0.01% |
845
+149
| +21% | +$16.8K |
|
|
HWCC
897
DELISTED
Houston Wire & Cable Company
HWCC
| $95K | ﹤0.01% |
20,209
+19,946
| +7,584% | +$93.8K |
|
898
BioSig Technologies, Inc. Common Stock
BSGM
$215M
| $94K | ﹤0.01% |
1,145
+406
| +55% | +$33.3K |
|
899
ITT
ITT
$13.9B
| $94K | ﹤0.01% |
+1,552
| New | +$94K |
|
900
SolarEdge
SEDG
$1.75B
| $94K | ﹤0.01% |
+1,130
| New | +$94K |
|