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
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CIO
1451
City Office REIT
CIO
$280M
| $44K | ﹤0.01% |
7,994
-78,712
| -91% | -$433K |
|
1452
Descartes Systems
DSGX
$8.96B
| $44K | ﹤0.01% |
+392
| New | +$44K |
|
1453
EXL Service
EXLS
$7.04B
| $44K | ﹤0.01% |
+992
| New | +$44K |
|
1454
iShares US Healthcare Providers ETF
IHF
$825M
| $44K | ﹤0.01% |
+923
| New | +$44K |
|
1455
Radware
RDWR
$1.1B
| $44K | ﹤0.01% |
1,958
-8,332
| -81% | -$187K |
|
1456
Invesco S&P 500 Top 50 ETF
XLG
$10.6B
| $44K | ﹤0.01% |
891
-10,902
| -92% | -$538K |
|
|
SOBO
1457
South Bow Corporation
SOBO
$5.78B
| $44K | ﹤0.01% |
+1,908
| New | +$44K |
|
1458
Alarm.com
ALRM
$2.77B
| $43K | ﹤0.01% |
+716
| New | +$43K |
|
1459
Aspen Aerogels
ASPN
$545M
| $43K | ﹤0.01% |
3,666
-22,815
| -86% | -$268K |
|
1460
Vanguard Total International Bond ETF
BNDX
$68.4B
| $43K | ﹤0.01% |
+888
| New | +$43K |
|
1461
China Yuchai International
CYD
$1.45B
| $43K | ﹤0.01% |
+4,584
| New | +$43K |
|
1462
Eledon Pharmaceuticals
ELDN
$146M
| $43K | ﹤0.01% |
+10,437
| New | +$43K |
|
1463
Idacorp
IDA
$6.79B
| $43K | ﹤0.01% |
+395
| New | +$43K |
|
1464
Live Oak Bancshares
LOB
$1.67B
| $43K | ﹤0.01% |
+1,097
| New | +$43K |
|
1465
OneSpan
OSPN
$589M
| $43K | ﹤0.01% |
2,373
-144,714
| -98% | -$2.62M |
|
1466
Phathom Pharmaceuticals
PHAT
$842M
| $43K | ﹤0.01% |
5,395
-10,303
| -66% | -$82.1K |
|
1467
abrdn Physical Gold Shares ETF
SGOL
$5.8B
| $43K | ﹤0.01% |
+1,723
| New | +$43K |
|
1468
SelectQuote
SLQT
$359M
| $43K | ﹤0.01% |
11,798
+7,304
| +163% | +$26.6K |
|
|
AUTL
1469
Autolus Therapeutics
AUTL
$359M
| $42K | ﹤0.01% |
18,057
+9,241
| +105% | +$21.5K |
|
1470
1-800-Flowers.com
FLWS
$336M
| $42K | ﹤0.01% |
5,235
+4,541
| +654% | +$36.4K |
|
1471
Kraft Heinz
KHC
$30.9B
| $42K | ﹤0.01% |
+1,386
| New | +$42K |
|
1472
KULR Technology Group
KULR
$185M
| $42K | ﹤0.01% |
+1,512
| New | +$42K |
|
1473
Fidelity Nasdaq Composite Index ETF
ONEQ
$8.77B
| $42K | ﹤0.01% |
+553
| New | +$42K |
|
1474
Playtika
PLTK
$1.41B
| $42K | ﹤0.01% |
+6,102
| New | +$42K |
|
1475
ProShares UltraShort Bloomberg Crude Oil
SCO
$124M
| $42K | ﹤0.01% |
2,538
-1,114
| -31% | -$18.4K |
|