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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1501
89bio
ETNB
$1.2B
| $26K | ﹤0.01% |
+3,686
| New | +$26K |
|
1502
Genworth Financial
GNW
$3.61B
| $26K | ﹤0.01% |
3,740
-100,094
| -96% | -$696K |
|
1503
IDT Corp
IDT
$1.67B
| $26K | ﹤0.01% |
510
-5,682
| -92% | -$290K |
|
1504
ARK Israel Innovative Technology ETF
IZRL
$126M
| $26K | ﹤0.01% |
+1,216
| New | +$26K |
|
|
OBE
1505
Obsidian Energy
OBE
$403M
| $26K | ﹤0.01% |
4,592
-11,733
| -72% | -$66.4K |
|
|
OPRA
1506
Opera Ltd
OPRA
$1.76B
| $26K | ﹤0.01% |
+1,635
| New | +$26K |
|
1507
SoundThinking
SSTI
$160M
| $26K | ﹤0.01% |
1,558
+1,394
| +850% | +$23.3K |
|
1508
Watts Water Technologies
WTS
$9.39B
| $26K | ﹤0.01% |
+132
| New | +$26K |
|
1509
X4 Pharmaceuticals
XFOR
$73.2M
| $26K | ﹤0.01% |
3,723
-2,674
| -42% | -$18.7K |
|
1510
Arq
ARQ
$306M
| $26K | ﹤0.01% |
+6,248
| New | +$26K |
|
1511
Allogene Therapeutics
ALLO
$251M
| $25K | ﹤0.01% |
17,671
-50,640
| -74% | -$71.6K |
|
1512
Vanguard Long-Term Bond ETF
BLV
$5.72B
| $25K | ﹤0.01% |
368
+210
| +133% | +$14.3K |
|
1513
Comtech Telecommunications
CMTL
$69.1M
| $25K | ﹤0.01% |
15,755
-65,880
| -81% | -$105K |
|
1514
Lightwave Logic
LWLG
$417M
| $25K | ﹤0.01% |
25,263
-88,650
| -78% | -$87.7K |
|
1515
La-Z-Boy
LZB
$1.39B
| $25K | ﹤0.01% |
+656
| New | +$25K |
|
1516
AdvisorShares MSOS 2X Daily ETF
MSOX
$42.4M
| $25K | ﹤0.01% |
6,345
+4,290
| +209% | +$16.9K |
|
1517
Insight Enterprises
NSIT
$3.9B
| $25K | ﹤0.01% |
+173
| New | +$25K |
|
1518
Sana Biotechnology
SANA
$828M
| $25K | ﹤0.01% |
+15,473
| New | +$25K |
|
|
YQ
1519
17 Education & Technology Group
YQ
$23.7M
| $25K | ﹤0.01% |
13,489
+11,700
| +654% | +$21.7K |
|
1520
CarGurus
CARG
$3.58B
| $24K | ﹤0.01% |
+849
| New | +$24K |
|
1521
Inter&Co
INTR
$3.92B
| $24K | ﹤0.01% |
4,396
-40,450
| -90% | -$221K |
|
1522
JB Hunt Transport Services
JBHT
$13.4B
| $24K | ﹤0.01% |
163
+154
| +1,711% | +$22.7K |
|
1523
NovaGold Resources
NG
$2.82B
| $24K | ﹤0.01% |
8,555
-547
| -6% | -$1.54K |
|
1524
Navigator Holdings
NVGS
$1.11B
| $24K | ﹤0.01% |
1,863
+490
| +36% | +$6.31K |
|
1525
SunCoke Energy
SXC
$654M
| $24K | ﹤0.01% |
+2,674
| New | +$24K |
|