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 | |
|---|---|---|---|---|---|---|
801
Global X Autonomous & Electric Vehicles ETF
DRIV
$343M
| $237K | ﹤0.01% |
11,043
-4,778
| -30% | -$103K |
|
|
LSI
802
DELISTED
Life Storage, Inc.
LSI
| $237K | ﹤0.01% |
2,124
-100
| -4% | -$11.2K |
|
|
AAWW
803
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
| $237K | ﹤0.01% |
3,856
-19,905
| -84% | -$1.22M |
|
|
SJT
804
San Juan Basin Royalty Trust
SJT
$271M
| $235K | ﹤0.01% |
27,118
-49,720
| -65% | -$431K |
|
805
SpartanNash
SPTN
$897M
| $235K | ﹤0.01% |
7,793
-17,279
| -69% | -$521K |
|
806
Ventas
VTR
$31.5B
| $235K | ﹤0.01% |
4,586
-69,319
| -94% | -$3.55M |
|
807
Teucrium Wheat Fund
WEAT
$116M
| $235K | ﹤0.01% |
26,074
-189,665
| -88% | -$1.71M |
|
808
NiSource
NI
$19.3B
| $234K | ﹤0.01% |
7,942
+6,124
| +337% | +$180K |
|
809
Knight Transportation
KNX
$6.89B
| $231K | ﹤0.01% |
4,997
+3,231
| +183% | +$149K |
|
810
MaxLinear
MXL
$1.36B
| $231K | ﹤0.01% |
+6,824
| New | +$231K |
|
|
XM
811
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
| $231K | ﹤0.01% |
18,491
+442
| +2% | +$5.52K |
|
812
Harmony Gold Mining
HMY
$9.44B
| $230K | ﹤0.01% |
73,798
+48,196
| +188% | +$150K |
|
|
ITOS
813
DELISTED
iTeos Therapeutics
ITOS
| $230K | ﹤0.01% |
+11,205
| New | +$230K |
|
814
Amplify Junior Silver Miners ETF
SILJ
$2.23B
| $230K | ﹤0.01% |
+24,271
| New | +$230K |
|
815
Wintrust Financial
WTFC
$9.15B
| $230K | ﹤0.01% |
2,878
+2,858
| +14,290% | +$228K |
|
816
Beam Therapeutics
BEAM
$2.1B
| $229K | ﹤0.01% |
+5,916
| New | +$229K |
|
817
ACM Research
ACMR
$1.88B
| $224K | ﹤0.01% |
13,358
-68,283
| -84% | -$1.15M |
|
|
RVNC
818
DELISTED
Revance Therapeutics, Inc.
RVNC
| $224K | ﹤0.01% |
16,226
-11,628
| -42% | -$161K |
|
|
TCDA
819
DELISTED
Tricida, Inc. Common Stock
TCDA
| $223K | ﹤0.01% |
23,119
-66,371
| -74% | -$640K |
|
820
ProShares UltraShort Dow 30
DXD
$51.8M
| $221K | ﹤0.01% |
4,236
+1,816
| +75% | +$94.7K |
|
821
Perion Network
PERI
$419M
| $221K | ﹤0.01% |
12,199
+8,325
| +215% | +$151K |
|
|
HUYA
822
Huya Inc
HUYA
$756M
| $220K | ﹤0.01% |
56,901
+31,643
| +125% | +$122K |
|
823
Allison Transmission
ALSN
$7.54B
| $219K | ﹤0.01% |
5,706
+1,049
| +23% | +$40.3K |
|
824
AutoNation
AN
$8.57B
| $219K | ﹤0.01% |
1,967
-11,711
| -86% | -$1.3M |
|
825
Bausch + Lomb
BLCO
$5.42B
| $219K | ﹤0.01% |
+14,408
| New | +$219K |
|