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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
NEWP
1001
New Pacific Metals
NEWP
$362M
| $112K | ﹤0.01% |
51,743
+31,273
| +153% | +$67.7K |
|
1002
Beam Therapeutics
BEAM
$2.1B
| $111K | ﹤0.01% |
3,495
-18,523
| -84% | -$588K |
|
1003
InflaRx
IFRX
$91.5M
| $111K | ﹤0.01% |
24,932
+12,888
| +107% | +$57.4K |
|
1004
MYR Group
MYRG
$2.77B
| $111K | ﹤0.01% |
804
+599
| +292% | +$82.7K |
|
1005
Bunge Global
BG
$16.3B
| $110K | ﹤0.01% |
1,168
-6,950
| -86% | -$655K |
|
1006
Howmet Aerospace
HWM
$75.2B
| $110K | ﹤0.01% |
+2,224
| New | +$110K |
|
|
GHL
1007
DELISTED
Greenhill & Co., Inc.
GHL
| $110K | ﹤0.01% |
+7,530
| New | +$110K |
|
1008
First Horizon
FHN
$11.5B
| $109K | ﹤0.01% |
9,698
-19,376
| -67% | -$218K |
|
1009
Relmada Therapeutics
RLMD
$51.4M
| $109K | ﹤0.01% |
44,363
+39,859
| +885% | +$97.9K |
|
1010
United Airlines
UAL
$34.6B
| $109K | ﹤0.01% |
2,000
-163,464
| -99% | -$8.91M |
|
|
AMAM
1011
DELISTED
Ambrx Biopharma, Inc. Common Stock
AMAM
| $109K | ﹤0.01% |
6,634
-113,570
| -94% | -$1.87M |
|
1012
Gannett
GCI
$622M
| $108K | ﹤0.01% |
48,135
+36,510
| +314% | +$81.9K |
|
1013
MGM Resorts International
MGM
$9.46B
| $108K | ﹤0.01% |
+2,472
| New | +$108K |
|
1014
N-able
NABL
$1.54B
| $108K | ﹤0.01% |
7,540
+7,476
| +11,681% | +$107K |
|
1015
Zurn Elkay Water Solutions
ZWS
$7.86B
| $108K | ﹤0.01% |
+4,044
| New | +$108K |
|
1016
Immunic
IMUX
$78M
| $107K | ﹤0.01% |
42,728
-14,850
| -26% | -$37.2K |
|
|
VGR
1017
DELISTED
Vector Group Ltd.
VGR
| $107K | ﹤0.01% |
8,376
+4,904
| +141% | +$62.6K |
|
|
OLK
1018
DELISTED
Olink Holding AB (publ) American Depositary Shares
OLK
| $107K | ﹤0.01% |
+5,752
| New | +$107K |
|
|
SIEN
1019
DELISTED
Sientra, Inc.
SIEN
| $107K | ﹤0.01% |
36,681
+22,074
| +151% | +$64.4K |
|
1020
Cal-Maine
CALM
$5.37B
| $106K | ﹤0.01% |
2,363
-4,316
| -65% | -$194K |
|
1021
Frontdoor
FTDR
$4.85B
| $106K | ﹤0.01% |
+3,348
| New | +$106K |
|
1022
Grocery Outlet
GO
$1.74B
| $106K | ﹤0.01% |
+3,468
| New | +$106K |
|
|
PDCO
1023
DELISTED
Patterson Companies, Inc.
PDCO
| $106K | ﹤0.01% |
3,210
+1,224
| +62% | +$40.4K |
|
|
LL
1024
DELISTED
LL Flooring Holdings, Inc.
LL
| $106K | ﹤0.01% |
27,759
+17,723
| +177% | +$67.7K |
|
1025
Beam Global
BEEM
$42.2M
| $105K | ﹤0.01% |
10,205
-4,001
| -28% | -$41.2K |
|