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 |
Apple
AAPL
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
826
NovaGold Resources
NG
$2.69B
| $392K | ﹤0.01% |
50,779
+31,413
| +162% | +$243K |
|
827
Colliers International
CIGI
$8.4B
| $391K | ﹤0.01% |
+3,005
| New | +$391K |
|
828
CureVac
CVAC
$1.21B
| $391K | ﹤0.01% |
19,972
+11,040
| +124% | +$216K |
|
829
Vail Resorts
MTN
$5.37B
| $390K | ﹤0.01% |
1,502
+1,007
| +203% | +$261K |
|
830
Casey's General Stores
CASY
$20B
| $389K | ﹤0.01% |
1,964
-583
| -23% | -$115K |
|
|
SYNH
831
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
| $389K | ﹤0.01% |
4,809
+4,620
| +2,444% | +$374K |
|
832
Merit Medical Systems
MMSI
$5.26B
| $388K | ﹤0.01% |
5,843
+929
| +19% | +$61.7K |
|
833
Arbutus Biopharma
ABUS
$886M
| $386K | ﹤0.01% |
129,814
-72,149
| -36% | -$215K |
|
834
American Resources Corp
AREC
$172M
| $386K | ﹤0.01% |
150,318
+71,210
| +90% | +$183K |
|
835
Bloomin' Brands
BLMN
$586M
| $385K | ﹤0.01% |
17,575
-44,372
| -72% | -$972K |
|
|
WSR
836
Whitestone REIT
WSR
$656M
| $384K | ﹤0.01% |
+29,015
| New | +$384K |
|
837
Palomar
PLMR
$3.18B
| $383K | ﹤0.01% |
5,994
+5,840
| +3,792% | +$373K |
|
|
FRGI
838
DELISTED
Fiesta Restaurant Group, Inc.
FRGI
| $382K | ﹤0.01% |
51,115
+50,107
| +4,971% | +$374K |
|
839
Invesco DB Base Metals Fund
DBB
$121M
| $381K | ﹤0.01% |
+14,782
| New | +$381K |
|
840
TFI International
TFII
$7.7B
| $381K | ﹤0.01% |
3,578
+2,032
| +131% | +$216K |
|
841
PagerDuty
PD
$1.49B
| $380K | ﹤0.01% |
+11,143
| New | +$380K |
|
842
Credicorp
BAP
$21B
| $379K | ﹤0.01% |
2,206
-1,268
| -36% | -$218K |
|
|
CIM
843
Chimera Investment
CIM
$1.17B
| $379K | ﹤0.01% |
10,498
+142
| +1% | +$5.13K |
|
|
LEAP
844
DELISTED
Ribbit LEAP, Ltd.
LEAP
| $379K | ﹤0.01% |
+38,438
| New | +$379K |
|
845
Blink Charging
BLNK
$129M
| $375K | ﹤0.01% |
14,205
+10,936
| +335% | +$289K |
|
846
WEX
WEX
$5.81B
| $375K | ﹤0.01% |
+2,107
| New | +$375K |
|
|
NETI
847
DELISTED
Eneti Inc.
NETI
| $374K | ﹤0.01% |
+58,995
| New | +$374K |
|
848
Carlisle Companies
CSL
$16.2B
| $371K | ﹤0.01% |
1,512
+374
| +33% | +$91.8K |
|
|
JKS
849
JinkoSolar
JKS
$1.26B
| $371K | ﹤0.01% |
+7,700
| New | +$371K |
|
|
VLDR
850
DELISTED
Velodyne Lidar, Inc. Common Stock
VLDR
| $371K | ﹤0.01% |
144,925
+62,203
| +75% | +$159K |
|