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 | |
|---|---|---|---|---|---|---|
851
WEX
WEX
$6.03B
| $226K | ﹤0.01% |
+1,082
| New | +$226K |
|
852
AerSale
ASLE
$411M
| $223K | ﹤0.01% |
44,252
+26,900
| +155% | +$136K |
|
853
GraniteShares 2x Long COIN Daily ETF
CONL
$815M
| $223K | ﹤0.01% |
8,995
+8,965
| +29,883% | +$222K |
|
854
Harmonic Inc
HLIT
$1.16B
| $223K | ﹤0.01% |
15,351
+12,232
| +392% | +$178K |
|
855
First Trust NASDAQ Cybersecurity ETF
CIBR
$10.9B
| $222K | ﹤0.01% |
3,757
-164
| -4% | -$9.69K |
|
856
Marqeta
MQ
$2.67B
| $222K | ﹤0.01% |
45,318
+21,804
| +93% | +$107K |
|
857
AMC Networks
AMCX
$337M
| $220K | ﹤0.01% |
25,377
+2,062
| +9% | +$17.9K |
|
858
Sempra
SRE
$54.1B
| $219K | ﹤0.01% |
+2,620
| New | +$219K |
|
859
Old National Bancorp
ONB
$8.79B
| $218K | ﹤0.01% |
11,726
+8,282
| +240% | +$154K |
|
860
Amicus Therapeutics
FOLD
$2.45B
| $216K | ﹤0.01% |
20,250
-54,345
| -73% | -$580K |
|
861
Marriott Vacations Worldwide
VAC
$2.73B
| $216K | ﹤0.01% |
2,950
+1,600
| +119% | +$117K |
|
862
Alector
ALEC
$288M
| $215K | ﹤0.01% |
46,344
+22,913
| +98% | +$106K |
|
863
AngloGold Ashanti
AU
$32.7B
| $215K | ﹤0.01% |
+8,081
| New | +$215K |
|
864
JFrog
FROG
$5.82B
| $215K | ﹤0.01% |
+7,427
| New | +$215K |
|
865
HighPeak Energy
HPK
$917M
| $214K | ﹤0.01% |
15,454
-14,241
| -48% | -$197K |
|
|
STKL
866
SunOpta
STKL
$755M
| $213K | ﹤0.01% |
33,517
-59,831
| -64% | -$380K |
|
867
Revolve Group
RVLV
$1.71B
| $213K | ﹤0.01% |
+8,622
| New | +$213K |
|
868
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$520M
| $212K | ﹤0.01% |
4,300
-14,501
| -77% | -$715K |
|
869
Magnolia Oil & Gas
MGY
$4.49B
| $212K | ﹤0.01% |
8,692
+4,914
| +130% | +$120K |
|
870
W&T Offshore
WTI
$257M
| $211K | ﹤0.01% |
98,386
+52,845
| +116% | +$113K |
|
871
LifeMD
LFMD
$280M
| $210K | ﹤0.01% |
40,141
+3,502
| +10% | +$18.3K |
|
872
Direxion Daily Real Estate Bull 3X Shares
DRN
$66.6M
| $208K | ﹤0.01% |
+15,558
| New | +$208K |
|
873
Fortis
FTS
$24.7B
| $208K | ﹤0.01% |
4,578
+4,239
| +1,250% | +$193K |
|
874
Oaktree Specialty Lending
OCSL
$1.21B
| $206K | ﹤0.01% |
+12,643
| New | +$206K |
|
875
Allegro MicroSystems
ALGM
$5.65B
| $205K | ﹤0.01% |
+8,802
| New | +$205K |
|