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 | |
|---|---|---|---|---|---|---|
776
McEwen Inc.
MUX
$731M
| $255K | ﹤0.01% |
58,160
+57,590
| +10,104% | +$253K |
|
777
Avita Medical
RCEL
$116M
| $253K | ﹤0.01% |
53,283
+49,686
| +1,381% | +$236K |
|
778
First Trust NASDAQ-100 Technology Index Fund
QTEC
$2.74B
| $251K | ﹤0.01% |
2,197
+1,897
| +632% | +$217K |
|
779
Frontier Group Holdings
ULCC
$1.23B
| $251K | ﹤0.01% |
+26,824
| New | +$251K |
|
780
Ezcorp Inc
EZPW
$1.01B
| $250K | ﹤0.01% |
33,420
+25,473
| +321% | +$191K |
|
781
Malibu Boats
MBUU
$638M
| $250K | ﹤0.01% |
4,745
+4,447
| +1,492% | +$234K |
|
782
3D Systems Corporation
DDD
$289M
| $249K | ﹤0.01% |
25,743
-110,954
| -81% | -$1.07M |
|
783
Schrodinger
SDGR
$1.38B
| $249K | ﹤0.01% |
9,434
-18,252
| -66% | -$482K |
|
784
Dentsply Sirona
XRAY
$2.76B
| $249K | ﹤0.01% |
+6,975
| New | +$249K |
|
|
MTA
785
Metalla Royalty & Streaming
MTA
$517M
| $248K | ﹤0.01% |
51,436
+16,364
| +47% | +$78.9K |
|
786
BlackSky Technology
BKSY
$606M
| $247K | ﹤0.01% |
13,372
+8,466
| +173% | +$156K |
|
787
Opko Health
OPK
$1.14B
| $247K | ﹤0.01% |
97,796
-29,073
| -23% | -$73.4K |
|
788
Commercial Metals
CMC
$6.62B
| $246K | ﹤0.01% |
7,437
-10,460
| -58% | -$346K |
|
789
Ross Stores
ROST
$49.3B
| $246K | ﹤0.01% |
3,514
+14
| +0.4% | +$980 |
|
790
Sprott Uranium Miners ETF
URNM
$1.75B
| $246K | ﹤0.01% |
8,634
-55,588
| -87% | -$1.58M |
|
|
AGS
791
DELISTED
PlayAGS
AGS
| $245K | ﹤0.01% |
47,546
-4,082
| -8% | -$21K |
|
792
Fox Class A
FOXA
$28.4B
| $245K | ﹤0.01% |
7,645
-27,409
| -78% | -$878K |
|
793
KraneShares European Carbon Allowance Strategy ETF
KEUA
$7.76M
| $244K | ﹤0.01% |
7,560
+5,715
| +310% | +$184K |
|
794
Teucrium Soybean Fund
SOYB
$25.4M
| $244K | ﹤0.01% |
9,039
-8,710
| -49% | -$235K |
|
795
Playtika
PLTK
$1.38B
| $243K | ﹤0.01% |
18,427
-113,857
| -86% | -$1.5M |
|
|
HEP
796
DELISTED
Holly Energy Partners, L.P.
HEP
| $243K | ﹤0.01% |
15,184
+473
| +3% | +$7.57K |
|
797
Vital Energy
VTLE
$635M
| $241K | ﹤0.01% |
3,506
-2,919
| -45% | -$201K |
|
798
America Movil
AMX
$61.6B
| $240K | ﹤0.01% |
11,776
+10,864
| +1,191% | +$221K |
|
799
iShares MSCI Singapore ETF
EWS
$820M
| $240K | ﹤0.01% |
13,580
-38,101
| -74% | -$673K |
|
800
ProShares Ultra Silver
AGQ
$860M
| $237K | ﹤0.01% |
9,701
-12,617
| -57% | -$308K |
|