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 | |
|---|---|---|---|---|---|---|
426
Grab
GRAB
$21.1B
| $782K | ﹤0.01% |
+309,194
| New | +$782K |
|
427
Amplify Energy
AMPY
$152M
| $777K | ﹤0.01% |
+118,868
| New | +$777K |
|
428
United States 12 Month Oil Fund,
USL
$42.8M
| $773K | ﹤0.01% |
19,544
-504
| -3% | -$19.9K |
|
429
Bath & Body Works
BBWI
$5.93B
| $772K | ﹤0.01% |
+28,680
| New | +$772K |
|
430
Shift4
FOUR
$5.91B
| $772K | ﹤0.01% |
23,370
+4,730
| +25% | +$156K |
|
431
Biogen
BIIB
$20.9B
| $769K | ﹤0.01% |
3,774
-5,576
| -60% | -$1.14M |
|
432
Hecla Mining
HL
$6.87B
| $768K | ﹤0.01% |
196,006
-2,455
| -1% | -$9.62K |
|
433
Dayforce
DAY
$10.9B
| $768K | ﹤0.01% |
16,316
-26,851
| -62% | -$1.26M |
|
434
Dynatrace
DT
$14.7B
| $765K | ﹤0.01% |
+19,407
| New | +$765K |
|
435
Ambac
AMBC
$421M
| $764K | ﹤0.01% |
67,329
+60,844
| +938% | +$690K |
|
436
Vanguard Growth ETF
VUG
$188B
| $764K | ﹤0.01% |
+3,431
| New | +$764K |
|
437
International Flavors & Fragrances
IFF
$16.9B
| $759K | ﹤0.01% |
6,379
+150
| +2% | +$17.8K |
|
438
Teucrium Corn Fund
CORN
$48.7M
| $756K | ﹤0.01% |
30,078
-9,658
| -24% | -$243K |
|
|
RC
439
Ready Capital
RC
$715M
| $754K | ﹤0.01% |
63,293
+61,109
| +2,798% | +$728K |
|
440
Sabesp
SBS
$15.7B
| $753K | ﹤0.01% |
94,308
-158,064
| -63% | -$1.26M |
|
441
LivaNova
LIVN
$3.16B
| $752K | ﹤0.01% |
12,048
-5,548
| -32% | -$346K |
|
442
Steven Madden
SHOO
$2.2B
| $752K | ﹤0.01% |
23,366
+3,825
| +20% | +$123K |
|
|
ZUO
443
DELISTED
Zuora, Inc.
ZUO
| $747K | ﹤0.01% |
+83,566
| New | +$747K |
|
|
COHR
444
DELISTED
Coherent Inc
COHR
| $745K | ﹤0.01% |
+2,800
| New | +$745K |
|
|
AVTA
445
DELISTED
Avantax, Inc. Common Stock
AVTA
| $743K | ﹤0.01% |
40,268
+7,213
| +22% | +$133K |
|
|
ONEM
446
DELISTED
1Life Healthcare, Inc. Common Stock
ONEM
| $743K | ﹤0.01% |
94,894
+33,645
| +55% | +$263K |
|
447
TechnipFMC
FTI
$16.1B
| $737K | ﹤0.01% |
109,629
-120,592
| -52% | -$811K |
|
448
Hudbay
HBM
$5.22B
| $732K | ﹤0.01% |
179,592
+46,603
| +35% | +$190K |
|
|
VRN
449
DELISTED
Veren
VRN
| $730K | ﹤0.01% |
102,597
+67,702
| +194% | +$482K |
|
450
Xerox
XRX
$479M
| $725K | ﹤0.01% |
+48,879
| New | +$725K |
|