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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1526
Sasol
SSL
$4.46B
| $21K | ﹤0.01% |
1,580
-1,885
| -54% | -$25.1K |
|
1527
Mammoth Energy Services
TUSK
$114M
| $21K | ﹤0.01% |
5,024
-29,954
| -86% | -$125K |
|
1528
TeraWulf
WULF
$4.39B
| $21K | ﹤0.01% |
22,900
-2,984
| -12% | -$2.74K |
|
|
LAC
1529
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $21K | ﹤0.01% |
1,000
| – | – |
|
1530
Brink's
BCO
$4.83B
| $20K | ﹤0.01% |
307
+262
| +582% | +$17.1K |
|
1531
CRA International
CRAI
$1.3B
| $20K | ﹤0.01% |
+193
| New | +$20K |
|
1532
Douglas Emmett
DEI
$2.79B
| $20K | ﹤0.01% |
1,696
-659
| -28% | -$7.77K |
|
|
EFXT
1533
Enerflex
EFXT
$1.29B
| $20K | ﹤0.01% |
3,467
-8,129
| -70% | -$46.9K |
|
1534
Exact Sciences
EXAS
$10.2B
| $20K | ﹤0.01% |
300
| – | – |
|
1535
HF Foods Group
HFFG
$177M
| $20K | ﹤0.01% |
+5,124
| New | +$20K |
|
1536
Lucid Motors
LCID
$5.92B
| $20K | ﹤0.01% |
256
+56
| +28% | +$4.38K |
|
1537
Ramaco Resources Class A
METC
$1.6B
| $20K | ﹤0.01% |
2,357
-43,517
| -95% | -$369K |
|
1538
Virtus InfraCap US Preferred Stock ETF
PFFA
$1.83B
| $20K | ﹤0.01% |
1,077
-1,854
| -63% | -$34.4K |
|
|
RDNW
1539
RideNow Group, Inc. Class B Common Stock
RDNW
$156M
| $20K | ﹤0.01% |
3,372
+2,419
| +254% | +$14.3K |
|
1540
ProShares Short Financials
SEF
$9.18M
| $20K | ﹤0.01% |
384
+72
| +23% | +$3.75K |
|
1541
Trimble
TRMB
$19.2B
| $20K | ﹤0.01% |
+382
| New | +$20K |
|
|
XNET
1542
Xunlei
XNET
$472M
| $20K | ﹤0.01% |
11,140
+3,939
| +55% | +$7.07K |
|
1543
XPeng
XPEV
$19.9B
| $20K | ﹤0.01% |
1,850
| – | – |
|
|
MODN
1544
DELISTED
MODEL N, INC.
MODN
| $20K | ﹤0.01% |
624
-2,395
| -79% | -$76.8K |
|
|
HLTH
1545
DELISTED
Cue Health Inc. Common Stock
HLTH
| $20K | ﹤0.01% |
+11,204
| New | +$20K |
|
1546
Salesforce
CRM
$231B
| $19K | ﹤0.01% |
100
-116
| -54% | -$22K |
|
|
CMRC
1547
Commerce.com, Inc. Series 1 Common Stock
CMRC
$370M
| $19K | ﹤0.01% |
+2,188
| New | +$19K |
|
1548
Bit Digital
BTBT
$955M
| $19K | ﹤0.01% |
12,908
+6,163
| +91% | +$9.07K |
|
1549
Cerus
CERS
$236M
| $19K | ﹤0.01% |
6,484
-25,140
| -79% | -$73.7K |
|
1550
Strive US Energy ETF
DRLL
$260M
| $19K | ﹤0.01% |
+719
| New | +$19K |
|