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 | |
|---|---|---|---|---|---|---|
601
Fomento Económico Mexicano
FMX
$30.1B
| $434K | ﹤0.01% |
6,433
+5,480
| +575% | +$370K |
|
602
Omega Healthcare
OHI
$12.6B
| $432K | ﹤0.01% |
15,327
+1,427
| +10% | +$40.2K |
|
603
ProShares UltraShort S&P500
SDS
$476M
| $431K | ﹤0.01% |
8,570
-10,670
| -55% | -$537K |
|
604
StoneCo
STNE
$4.71B
| $430K | ﹤0.01% |
55,858
-55,777
| -50% | -$429K |
|
605
Voya Financial
VOYA
$7.3B
| $430K | ﹤0.01% |
7,229
+6,773
| +1,485% | +$403K |
|
606
Westlake Corp
WLK
$10.9B
| $430K | ﹤0.01% |
4,394
+4,163
| +1,802% | +$407K |
|
607
AvalonBay Communities
AVB
$27.4B
| $427K | ﹤0.01% |
+2,200
| New | +$427K |
|
608
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $427K | ﹤0.01% |
6,199
-35,780
| -85% | -$2.46M |
|
|
CDR
609
DELISTED
Cedar Realty Trust, Inc
CDR
| $425K | ﹤0.01% |
14,782
-34,391
| -70% | -$989K |
|
610
iShares Core High Dividend ETF
HDV
$11.6B
| $424K | ﹤0.01% |
4,225
+4,128
| +4,256% | +$414K |
|
611
Coeur Mining
CDE
$9.6B
| $423K | ﹤0.01% |
139,362
+23,296
| +20% | +$70.7K |
|
|
RETA
612
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $422K | ﹤0.01% |
13,908
+858
| +7% | +$26K |
|
613
Energy Fuels
UUUU
$2.91B
| $421K | ﹤0.01% |
85,917
-122,667
| -59% | -$601K |
|
614
ProShares UltraShort Bloomberg Natural Gas
KOLD
$183M
| $420K | ﹤0.01% |
20,992
+20,614
| +5,453% | +$412K |
|
|
OBE
615
Obsidian Energy
OBE
$417M
| $419K | ﹤0.01% |
+54,219
| New | +$419K |
|
616
iShares MSCI Turkey ETF
TUR
$163M
| $419K | ﹤0.01% |
+22,064
| New | +$419K |
|
617
ZTO Express
ZTO
$15.4B
| $418K | ﹤0.01% |
+15,249
| New | +$418K |
|
|
TE
618
T1 Energy Inc.
TE
$292M
| $417K | ﹤0.01% |
61,060
-196,530
| -76% | -$1.34M |
|
619
Photronics
PLAB
$1.32B
| $416K | ﹤0.01% |
+21,404
| New | +$416K |
|
620
Kosmos Energy
KOS
$832M
| $415K | ﹤0.01% |
67,100
+16,052
| +31% | +$99.3K |
|
621
Huron Consulting
HURN
$2.36B
| $412K | ﹤0.01% |
6,348
+4,670
| +278% | +$303K |
|
622
Direxion Daily Technology Bull 3x Shares
TECL
$3.76B
| $412K | ﹤0.01% |
14,706
-63,521
| -81% | -$1.78M |
|
|
TGH
623
DELISTED
Textainer Group Holdings limited
TGH
| $412K | ﹤0.01% |
15,049
-47,905
| -76% | -$1.31M |
|
624
Angi Inc
ANGI
$769M
| $410K | ﹤0.01% |
8,953
+5,244
| +141% | +$240K |
|
625
STAG Industrial
STAG
$6.68B
| $408K | ﹤0.01% |
13,216
+9,220
| +231% | +$285K |
|