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 |
Apple
AAPL
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
651
ArcBest
ARCB
$1.61B
| $371K | ﹤0.01% |
5,282
-1,191
| -18% | -$83.7K |
|
652
Levi Strauss
LEVI
$8.59B
| $369K | ﹤0.01% |
+22,663
| New | +$369K |
|
653
Fortuna Silver Mines
FSM
$2.42B
| $367K | ﹤0.01% |
129,421
-15,906
| -11% | -$45.1K |
|
|
BKI
654
DELISTED
Black Knight, Inc. Common Stock
BKI
| $365K | ﹤0.01% |
5,588
-14,750
| -73% | -$963K |
|
655
Gen Digital
GEN
$18B
| $364K | ﹤0.01% |
16,578
-73,759
| -82% | -$1.62M |
|
656
Retractable Technologies
RVP
$24.5M
| $362K | ﹤0.01% |
94,748
+91,008
| +2,433% | +$348K |
|
657
Trinity Capital
TRIN
$1.13B
| $362K | ﹤0.01% |
25,047
+20,169
| +413% | +$291K |
|
658
Arcutis Biotherapeutics
ARQT
$2.11B
| $361K | ﹤0.01% |
16,985
+15,177
| +839% | +$323K |
|
659
Madison Square Garden
MSGS
$4.93B
| $361K | ﹤0.01% |
2,395
+1,018
| +74% | +$153K |
|
660
DigitalBridge
DBRG
$2.03B
| $357K | ﹤0.01% |
18,323
+807
| +5% | +$15.7K |
|
|
LADR
661
Ladder Capital
LADR
$1.5B
| $357K | ﹤0.01% |
33,872
+20,955
| +162% | +$221K |
|
662
FlexShares Global Upstream Natural Resources Index Fund
GUNR
$5.04B
| $355K | ﹤0.01% |
8,968
+5,179
| +137% | +$205K |
|
663
Invesco
IVZ
$9.88B
| $353K | ﹤0.01% |
+21,917
| New | +$353K |
|
664
KraneShares Global Carbon Strategy ETF
KRBN
$167M
| $353K | ﹤0.01% |
+7,177
| New | +$353K |
|
|
LEAP
665
DELISTED
Ribbit LEAP, Ltd.
LEAP
| $352K | ﹤0.01% |
35,597
-2,841
| -7% | -$28.1K |
|
666
Marqeta
MQ
$2.64B
| $351K | ﹤0.01% |
43,382
+2,160
| +5% | +$17.5K |
|
667
Arbutus Biopharma
ABUS
$886M
| $350K | ﹤0.01% |
129,391
-423
| -0.3% | -$1.14K |
|
668
DTE Energy
DTE
$28.2B
| $350K | ﹤0.01% |
+2,763
| New | +$350K |
|
|
LHCG
669
DELISTED
LHC Group LLC
LHCG
| $350K | ﹤0.01% |
+2,250
| New | +$350K |
|
670
WisdomTree Japan Hedged Equity Fund
DXJ
$3.81B
| $349K | ﹤0.01% |
5,598
+2,956
| +112% | +$184K |
|
|
SMAR
671
DELISTED
Smartsheet Inc.
SMAR
| $349K | ﹤0.01% |
11,126
+7,134
| +179% | +$224K |
|
672
TrueCar
TRUE
$172M
| $348K | ﹤0.01% |
134,718
+21,973
| +19% | +$56.8K |
|
|
ONIT
673
Onity Group Inc.
ONIT
$352M
| $347K | ﹤0.01% |
12,684
+1,941
| +18% | +$53.1K |
|
674
Clover Health Investments
CLOV
$1.55B
| $346K | ﹤0.01% |
161,964
+102,383
| +172% | +$219K |
|
675
Strategy Inc Common Stock Class A
MSTR
$92.6B
| $343K | ﹤0.01% |
20,910
| – | – |
|