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
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
801
Energy Fuels
UUUU
$2.89B
| $294K | ﹤0.01% |
48,662
-527
| -1% | -$3.18K |
|
|
BPMC
802
DELISTED
Blueprint Medicines
BPMC
| $293K | ﹤0.01% |
2,724
+9
| +0.3% | +$968 |
|
803
Avery Dennison
AVY
$13.1B
| $291K | ﹤0.01% |
1,333
-3,474
| -72% | -$758K |
|
804
Outset Medical
OM
$251M
| $291K | ﹤0.01% |
5,051
+2,364
| +88% | +$136K |
|
|
BIG
805
DELISTED
Big Lots, Inc.
BIG
| $291K | ﹤0.01% |
+168,277
| New | +$291K |
|
806
Beam Therapeutics
BEAM
$2.17B
| $290K | ﹤0.01% |
+12,417
| New | +$290K |
|
807
Warrior Met Coal
HCC
$3.11B
| $290K | ﹤0.01% |
4,624
-5,039
| -52% | -$316K |
|
808
Sana Biotechnology
SANA
$875M
| $290K | ﹤0.01% |
53,288
+6,772
| +15% | +$36.9K |
|
809
Calavo Growers
CVGW
$495M
| $289K | ﹤0.01% |
12,771
+10,645
| +501% | +$241K |
|
|
CERE
810
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
| $288K | ﹤0.01% |
+7,051
| New | +$288K |
|
811
Nike
NKE
$110B
| $287K | ﹤0.01% |
3,815
-292,206
| -99% | -$22M |
|
812
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$278M
| $284K | ﹤0.01% |
8,260
-21,013
| -72% | -$722K |
|
813
iShares MSCI Hong Kong ETF
EWH
$741M
| $283K | ﹤0.01% |
18,536
-7,423
| -29% | -$113K |
|
814
Matador Resources
MTDR
$6.04B
| $282K | ﹤0.01% |
4,743
-18,412
| -80% | -$1.09M |
|
815
Global X Artificial Intelligence & Technology ETF
AIQ
$4.88B
| $281K | ﹤0.01% |
7,899
-650
| -8% | -$23.1K |
|
816
Paylocity
PCTY
$9.48B
| $281K | ﹤0.01% |
2,134
+887
| +71% | +$117K |
|
817
OptimizeRx
OPRX
$348M
| $280K | ﹤0.01% |
28,034
+22,676
| +423% | +$226K |
|
|
CSW
818
CSW Industrials, Inc.
CSW
$4.28B
| $278K | ﹤0.01% |
1,048
+286
| +38% | +$75.9K |
|
819
Sportradar
SRAD
$8.85B
| $278K | ﹤0.01% |
24,915
-98,726
| -80% | -$1.1M |
|
820
Devon Energy
DVN
$22.4B
| $277K | ﹤0.01% |
5,851
-26,867
| -82% | -$1.27M |
|
821
SSR Mining
SSRM
$4.61B
| $276K | ﹤0.01% |
+61,271
| New | +$276K |
|
822
Innoviz Technologies
INVZ
$369M
| $275K | ﹤0.01% |
297,209
+226,532
| +321% | +$210K |
|
823
iShares National Muni Bond ETF
MUB
$39.5B
| $275K | ﹤0.01% |
+2,583
| New | +$275K |
|
824
Universal Health Services
UHS
$12.1B
| $274K | ﹤0.01% |
1,483
+865
| +140% | +$160K |
|
825
Legend Biotech
LEGN
$6.25B
| $272K | ﹤0.01% |
+6,151
| New | +$272K |
|