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 | |
|---|---|---|---|---|---|---|
1026
ProShares Short Russell2000
RWM
$124M
| $126K | ﹤0.01% |
6,707
-2,795
| -29% | -$52.5K |
|
1027
ProShares UltraPro Short 20+ Year Treasury
TTT
$21.5M
| $126K | ﹤0.01% |
2,106
+1,349
| +178% | +$80.7K |
|
|
RVNC
1028
DELISTED
Revance Therapeutics, Inc.
RVNC
| $126K | ﹤0.01% |
24,378
-33,744
| -58% | -$174K |
|
1029
Brookfield Asset Management
BAM
$91.5B
| $125K | ﹤0.01% |
2,664
-7,120
| -73% | -$334K |
|
1030
Integer Holdings
ITGR
$3.65B
| $125K | ﹤0.01% |
+967
| New | +$125K |
|
1031
Planet Labs
PL
$2.98B
| $125K | ﹤0.01% |
+56,214
| New | +$125K |
|
1032
Dollar General
DG
$23.2B
| $123K | ﹤0.01% |
+1,455
| New | +$123K |
|
1033
ClearPoint Neuro
CLPT
$315M
| $122K | ﹤0.01% |
10,943
+4,046
| +59% | +$45.1K |
|
1034
Murphy Oil
MUR
$3.69B
| $122K | ﹤0.01% |
3,640
-8,231
| -69% | -$276K |
|
1035
SSR Mining
SSRM
$4.62B
| $122K | ﹤0.01% |
21,630
-39,641
| -65% | -$224K |
|
1036
Vornado Realty Trust
VNO
$8.07B
| $122K | ﹤0.01% |
+3,105
| New | +$122K |
|
|
ROIC
1037
DELISTED
Retail Opportunity Investments Corp.
ROIC
| $122K | ﹤0.01% |
7,768
+5,922
| +321% | +$93K |
|
1038
Comtech Telecommunications
CMTL
$68.2M
| $120K | ﹤0.01% |
24,968
-36,846
| -60% | -$177K |
|
|
SW
1039
Smurfit Westrock plc
SW
$23.8B
| $120K | ﹤0.01% |
+2,434
| New | +$120K |
|
1040
Arch Capital
ACGL
$34.4B
| $119K | ﹤0.01% |
1,066
+450
| +73% | +$50.2K |
|
|
OTLY
1041
Oatly Group
OTLY
$528M
| $118K | ﹤0.01% |
6,928
+3,255
| +89% | +$55.4K |
|
1042
Sally Beauty Holdings
SBH
$1.51B
| $118K | ﹤0.01% |
+8,732
| New | +$118K |
|
|
ENLC
1043
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $118K | ﹤0.01% |
+8,186
| New | +$118K |
|
1044
Methanex
MEOH
$3.08B
| $117K | ﹤0.01% |
2,847
-553
| -16% | -$22.7K |
|
1045
ZimVie
ZIMV
$533M
| $117K | ﹤0.01% |
+7,384
| New | +$117K |
|
|
ARC
1046
DELISTED
ARC Document Solutions, Inc.
ARC
| $117K | ﹤0.01% |
+34,626
| New | +$117K |
|
1047
SITE Centers
SITC
$474M
| $116K | ﹤0.01% |
+9,890
| New | +$116K |
|
1048
Sonoco
SON
$4.66B
| $116K | ﹤0.01% |
2,141
-88
| -4% | -$4.77K |
|
1049
Direxion Daily CSI China Internet Index Bull 2X Shares
CWEB
$366M
| $115K | ﹤0.01% |
+2,564
| New | +$115K |
|
1050
Stitch Fix
SFIX
$757M
| $115K | ﹤0.01% |
41,005
+35,049
| +588% | +$98.3K |
|