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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1276
BioAtla
BCAB
$45.6M
| $50K | ﹤0.01% |
+28,490
| New | +$50K |
|
1277
LENSAR
LNSR
$147M
| $50K | ﹤0.01% |
11,087
+7,080
| +177% | +$31.9K |
|
1278
Invesco Golden Dragon China ETF
PGJ
$156M
| $50K | ﹤0.01% |
1,775
+1,441
| +431% | +$40.6K |
|
1279
Teucrium Soybean Fund
SOYB
$25.5M
| $50K | ﹤0.01% |
2,187
-2,002
| -48% | -$45.8K |
|
1280
Vanguard Intermediate-Term Treasury ETF
VGIT
$32.4B
| $50K | ﹤0.01% |
+829
| New | +$50K |
|
1281
Diana Shipping
DSX
$223M
| $49K | ﹤0.01% |
19,445
-37,477
| -66% | -$94.4K |
|
1282
Carter's
CRI
$1.08B
| $49K | ﹤0.01% |
756
+544
| +257% | +$35.3K |
|
1283
DXP Enterprises
DXPE
$1.87B
| $49K | ﹤0.01% |
931
-325
| -26% | -$17.1K |
|
1284
Inter&Co
INTR
$3.96B
| $49K | ﹤0.01% |
7,438
+392
| +6% | +$2.58K |
|
|
SLI
1285
Standard Lithium
SLI
$586M
| $49K | ﹤0.01% |
30,936
+13,091
| +73% | +$20.7K |
|
1286
SPDR S&P Oil & Gas Equipment & Services ETF
XES
$158M
| $49K | ﹤0.01% |
+607
| New | +$49K |
|
1287
NovaGold Resources
NG
$2.83B
| $48K | ﹤0.01% |
11,868
-39,032
| -77% | -$158K |
|
|
OBE
1288
Obsidian Energy
OBE
$407M
| $48K | ﹤0.01% |
8,814
-43
| -0.5% | -$234 |
|
1289
CVRx
CVRX
$211M
| $47K | ﹤0.01% |
5,393
+2,686
| +99% | +$23.4K |
|
1290
GFL Environmental
GFL
$17.1B
| $47K | ﹤0.01% |
+1,202
| New | +$47K |
|
|
HUYA
1291
Huya Inc
HUYA
$780M
| $47K | ﹤0.01% |
9,340
+4,360
| +88% | +$21.9K |
|
1292
Navigator Holdings
NVGS
$1.11B
| $47K | ﹤0.01% |
2,930
-20,522
| -88% | -$329K |
|
1293
LendingTree
TREE
$974M
| $47K | ﹤0.01% |
+820
| New | +$47K |
|
1294
Vanguard Health Care ETF
VHT
$15.7B
| $47K | ﹤0.01% |
+169
| New | +$47K |
|
1295
Vanda Pharmaceuticals
VNDA
$268M
| $47K | ﹤0.01% |
10,194
-13,726
| -57% | -$63.3K |
|
|
DM
1296
DELISTED
Desktop Metal, Inc.
DM
| $47K | ﹤0.01% |
10,270
-121,254
| -92% | -$555K |
|
1297
Andersons Inc
ANDE
$1.38B
| $46K | ﹤0.01% |
+930
| New | +$46K |
|
1298
Brady Corp
BRC
$3.74B
| $46K | ﹤0.01% |
+605
| New | +$46K |
|
1299
Knowles
KN
$1.89B
| $46K | ﹤0.01% |
2,603
+2,072
| +390% | +$36.6K |
|
1300
Virtus InfraCap US Preferred Stock ETF
PFFA
$1.83B
| $46K | ﹤0.01% |
+2,035
| New | +$46K |
|