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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
PETQ
926
DELISTED
PetIQ, Inc. Class A Common Stock
PETQ
| $173K | ﹤0.01% |
5,636
+5,581
| +10,147% | +$171K |
|
927
Esperion Therapeutics
ESPR
$563M
| $172K | ﹤0.01% |
104,359
+12,515
| +14% | +$20.6K |
|
928
HDFC Bank
HDB
$181B
| $172K | ﹤0.01% |
+2,752
| New | +$172K |
|
929
Larimar Therapeutics
LRMR
$357M
| $172K | ﹤0.01% |
26,262
+1,708
| +7% | +$11.2K |
|
930
Oppenheimer Holdings
OPY
$815M
| $172K | ﹤0.01% |
+3,373
| New | +$172K |
|
931
Virco
VIRC
$130M
| $172K | ﹤0.01% |
12,458
-5,366
| -30% | -$74.1K |
|
932
Alto Ingredients
ALTO
$89.8M
| $171K | ﹤0.01% |
106,528
+49,667
| +87% | +$79.7K |
|
|
AZUL
933
DELISTED
Azul
AZUL
| $170K | ﹤0.01% |
+49,546
| New | +$170K |
|
934
Ceragon Networks
CRNT
$180M
| $170K | ﹤0.01% |
62,113
-9,940
| -14% | -$27.2K |
|
935
Health Catalyst
HCAT
$228M
| $170K | ﹤0.01% |
20,937
+19,847
| +1,821% | +$161K |
|
936
KLX Energy Services
KLXE
$33.4M
| $169K | ﹤0.01% |
31,013
-3,439
| -10% | -$18.7K |
|
937
Wave Life Sciences
WVE
$1.14B
| $169K | ﹤0.01% |
20,645
+8,434
| +69% | +$69K |
|
938
Clover Health Investments
CLOV
$1.61B
| $168K | ﹤0.01% |
59,859
+8,308
| +16% | +$23.3K |
|
939
AbCellera Biologics
ABCL
$1.38B
| $166K | ﹤0.01% |
64,183
+26,998
| +73% | +$69.8K |
|
940
Fomento Económico Mexicano
FMX
$31.4B
| $166K | ﹤0.01% |
+1,689
| New | +$166K |
|
941
SS&C Technologies
SSNC
$22B
| $166K | ﹤0.01% |
2,242
+1,262
| +129% | +$93.4K |
|
942
Air Lease Corp
AL
$7.1B
| $165K | ﹤0.01% |
+3,663
| New | +$165K |
|
943
Getty Images
GETY
$813M
| $165K | ﹤0.01% |
43,494
-81,404
| -65% | -$309K |
|
944
Riskified
RSKD
$732M
| $165K | ﹤0.01% |
+35,062
| New | +$165K |
|
|
NAPA
945
DELISTED
The Duckhorn Portfolio, Inc.
NAPA
| $164K | ﹤0.01% |
28,305
+18,693
| +194% | +$108K |
|
946
Arcus Biosciences
RCUS
$1.22B
| $164K | ﹤0.01% |
10,740
-119,120
| -92% | -$1.82M |
|
947
Gevo
GEVO
$401M
| $163K | ﹤0.01% |
100,090
+9,849
| +11% | +$16K |
|
948
Globus Medical
GMED
$8.05B
| $163K | ﹤0.01% |
+2,288
| New | +$163K |
|
949
Mercer International
MERC
$209M
| $162K | ﹤0.01% |
23,938
+5,512
| +30% | +$37.3K |
|
950
Universal Health Services
UHS
$12.1B
| $162K | ﹤0.01% |
711
-772
| -52% | -$176K |
|