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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1451
UroGen Pharma
URGN
$873M
| $42K | ﹤0.01% |
2,805
-3,846
| -58% | -$57.6K |
|
|
INBX
1452
DELISTED
Inhibrx, Inc. Common Stock
INBX
| $42K | ﹤0.01% |
1,215
-34,646
| -97% | -$1.2M |
|
1453
Pathward Financial
CASH
$1.75B
| $41K | ﹤0.01% |
822
+704
| +597% | +$35.1K |
|
1454
Viant Technology
DSP
$153M
| $41K | ﹤0.01% |
+3,862
| New | +$41K |
|
1455
Laureate Education
LAUR
$4.36B
| $41K | ﹤0.01% |
+2,826
| New | +$41K |
|
1456
LivePerson
LPSN
$66.2M
| $41K | ﹤0.01% |
41,358
+32,526
| +368% | +$32.2K |
|
1457
Protolabs
PRLB
$1.21B
| $41K | ﹤0.01% |
1,161
-993
| -46% | -$35.1K |
|
1458
Sasol
SSL
$4.27B
| $41K | ﹤0.01% |
+5,289
| New | +$41K |
|
1459
ProShares VIX Mid-Term Futures ETF
VIXM
$40.9M
| $41K | ﹤0.01% |
2,637
+776
| +42% | +$12.1K |
|
|
AGR
1460
DELISTED
Avangrid, Inc.
AGR
| $41K | ﹤0.01% |
1,150
+1,082
| +1,591% | +$38.6K |
|
1461
American States Water
AWR
$2.77B
| $40K | ﹤0.01% |
555
+465
| +517% | +$33.5K |
|
1462
BioXcel Therapeutics
BTAI
$48.2M
| $40K | ﹤0.01% |
+895
| New | +$40K |
|
1463
Ceco Environmental
CECO
$1.81B
| $40K | ﹤0.01% |
+1,753
| New | +$40K |
|
1464
Coherus Oncology, Inc. Common Stock
CHRS
$178M
| $40K | ﹤0.01% |
17,037
-56,001
| -77% | -$131K |
|
1465
CSG Systems International
CSGS
$1.93B
| $40K | ﹤0.01% |
790
+127
| +19% | +$6.43K |
|
|
GMRE
1466
Global Medical REIT
GMRE
$517M
| $40K | ﹤0.01% |
+4,683
| New | +$40K |
|
1467
IHS Holding
IHS
$2.32B
| $40K | ﹤0.01% |
11,338
+10,743
| +1,806% | +$37.9K |
|
1468
KalVista Pharmaceuticals
KALV
$701M
| $40K | ﹤0.01% |
+3,426
| New | +$40K |
|
1469
MarketWise
MKTW
$46.9M
| $40K | ﹤0.01% |
1,174
+1,017
| +648% | +$34.7K |
|
1470
iShares Treasury Floating Rate Bond ETF
TFLO
$6.64B
| $40K | ﹤0.01% |
+800
| New | +$40K |
|
1471
TTM Technologies
TTMI
$5.46B
| $40K | ﹤0.01% |
+2,574
| New | +$40K |
|
1472
ALX Oncology
ALXO
$58.4M
| $39K | ﹤0.01% |
3,514
-4,366
| -55% | -$48.5K |
|
1473
iShares MSCI South Africa ETF
EZA
$449M
| $39K | ﹤0.01% |
998
-2,552
| -72% | -$99.7K |
|
1474
Graco
GGG
$14.1B
| $39K | ﹤0.01% |
427
+224
| +110% | +$20.5K |
|
1475
Hubbell
HUBB
$23.4B
| $39K | ﹤0.01% |
+95
| New | +$39K |
|