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 | |
|---|---|---|---|---|---|---|
|
CMRC
1051
Commerce.com, Inc. Series 1 Common Stock
CMRC
$370M
| $98K | ﹤0.01% |
9,873
+7,685
| +351% | +$76.3K |
|
1052
Global Net Lease
GNL
$1.81B
| $98K | ﹤0.01% |
+9,541
| New | +$98K |
|
1053
Kinetik
KNTK
$2.69B
| $98K | ﹤0.01% |
2,806
+685
| +32% | +$23.9K |
|
1054
MacroGenics
MGNX
$100M
| $98K | ﹤0.01% |
18,437
-521
| -3% | -$2.77K |
|
1055
Build-A-Bear
BBW
$977M
| $97K | ﹤0.01% |
4,572
+1,011
| +28% | +$21.4K |
|
1056
eHealth
EHTH
$122M
| $97K | ﹤0.01% |
12,159
-22,768
| -65% | -$182K |
|
1057
Neonode
NEON
$72.3M
| $97K | ﹤0.01% |
12,015
+628
| +6% | +$5.07K |
|
1058
Pampa Energía
PAM
$3.23B
| $97K | ﹤0.01% |
+2,248
| New | +$97K |
|
1059
PTC Therapeutics
PTCT
$4.85B
| $97K | ﹤0.01% |
+2,403
| New | +$97K |
|
1060
Tarsus Pharmaceuticals
TARS
$2.08B
| $97K | ﹤0.01% |
+5,383
| New | +$97K |
|
1061
Hyliion Holdings
HYLN
$284M
| $96K | ﹤0.01% |
57,592
+16,645
| +41% | +$27.7K |
|
1062
Prosperity Bancshares
PB
$6.44B
| $96K | ﹤0.01% |
1,707
-5,543
| -76% | -$312K |
|
|
SLCA
1063
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
| $96K | ﹤0.01% |
7,993
+3,234
| +68% | +$38.8K |
|
1064
Cytosorbents Corp
CTSO
$58.9M
| $95K | ﹤0.01% |
26,581
+2,033
| +8% | +$7.27K |
|
|
SVM
1065
Silvercorp Metals
SVM
$1.15B
| $95K | ﹤0.01% |
33,747
-51,441
| -60% | -$145K |
|
1066
Black Stone Minerals
BSM
$2.65B
| $94K | ﹤0.01% |
+5,912
| New | +$94K |
|
1067
iShares US Medical Devices ETF
IHI
$4.27B
| $94K | ﹤0.01% |
1,669
-6,906
| -81% | -$389K |
|
1068
ProShares VIX Short-Term Futures ETF
VIXY
$80.7M
| $94K | ﹤0.01% |
+943
| New | +$94K |
|
1069
Cinemark Holdings
CNK
$3.25B
| $93K | ﹤0.01% |
5,646
-26,795
| -83% | -$441K |
|
1070
Hagerty
HGTY
$1.24B
| $93K | ﹤0.01% |
10,032
+437
| +5% | +$4.05K |
|
|
MAG
1071
DELISTED
MAG Silver
MAG
| $93K | ﹤0.01% |
8,398
-40,296
| -83% | -$446K |
|
1072
PLAYSTUDIOS Inc
MYPS
$121M
| $93K | ﹤0.01% |
18,990
+8,544
| +82% | +$41.8K |
|
1073
Red Robin
RRGB
$121M
| $93K | ﹤0.01% |
6,751
+1,724
| +34% | +$23.7K |
|
|
CGC
1074
Canopy Growth
CGC
$427M
| $92K | ﹤0.01% |
23,915
+10,207
| +74% | +$39.3K |
|
1075
Nutanix
NTNX
$21.2B
| $92K | ﹤0.01% |
+3,292
| New | +$92K |
|