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
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
Invesco DB Agriculture Fund
DBA
$802M
| $227K | ﹤0.01% |
13,714
+10,985
| +403% | +$182K |
|
|
PBFX
702
DELISTED
PBF LOGISTICS LP
PBFX
| $227K | ﹤0.01% |
11,249
-6,810
| -38% | -$137K |
|
|
TLRA
703
DELISTED
Telaria, Inc.
TLRA
| $227K | ﹤0.01% |
25,794
+13,298
| +106% | +$117K |
|
704
Direxion Daily Technology Bull 3x Shares
TECL
$3.57B
| $226K | ﹤0.01% |
9,360
-26,840
| -74% | -$648K |
|
|
DLPH
705
DELISTED
Delphi Technologies PLC Ordinary Shares
DLPH
| $226K | ﹤0.01% |
+17,622
| New | +$226K |
|
706
Estee Lauder
EL
$31.9B
| $225K | ﹤0.01% |
1,090
-4,794
| -81% | -$990K |
|
707
Arcos Dorados Holdings
ARCO
$1.45B
| $224K | ﹤0.01% |
+28,516
| New | +$224K |
|
708
Goodyear
GT
$2.45B
| $223K | ﹤0.01% |
14,382
-23,804
| -62% | -$369K |
|
|
SA
709
Seabridge Gold
SA
$1.78B
| $223K | ﹤0.01% |
16,183
+5,411
| +50% | +$74.6K |
|
710
BlackLine
BL
$3.38B
| $222K | ﹤0.01% |
+4,319
| New | +$222K |
|
711
Sunrun
RUN
$3.7B
| $222K | ﹤0.01% |
16,146
-2,882
| -15% | -$39.6K |
|
|
QEP
712
DELISTED
QEP RESOURCES, INC.
QEP
| $222K | ﹤0.01% |
+49,385
| New | +$222K |
|
713
Ligand Pharmaceuticals
LGND
$3.22B
| $221K | ﹤0.01% |
3,411
+2,154
| +171% | +$140K |
|
714
iShares National Muni Bond ETF
MUB
$39.2B
| $221K | ﹤0.01% |
1,944
-455
| -19% | -$51.7K |
|
715
Clearside Biomedical
CLSD
$26.6M
| $220K | ﹤0.01% |
75,870
+75,418
| +16,685% | +$219K |
|
716
Gildan
GIL
$8.19B
| $220K | ﹤0.01% |
7,451
+7,339
| +6,553% | +$217K |
|
717
MakeMyTrip
MMYT
$9.31B
| $219K | ﹤0.01% |
9,581
+8,935
| +1,383% | +$204K |
|
718
Lennox International
LII
$19.6B
| $218K | ﹤0.01% |
+897
| New | +$218K |
|
|
TBCH
719
Turtle Beach Corporation Common Stock
TBCH
$298M
| $218K | ﹤0.01% |
23,157
+18,499
| +397% | +$174K |
|
|
ENLC
720
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $218K | ﹤0.01% |
+35,691
| New | +$218K |
|
721
Axalta
AXTA
$6.8B
| $217K | ﹤0.01% |
+7,153
| New | +$217K |
|
722
M/I Homes
MHO
$4.04B
| $215K | ﹤0.01% |
5,487
+2,757
| +101% | +$108K |
|
723
Invesco Aerospace & Defense ETF
PPA
$6.19B
| $215K | ﹤0.01% |
+3,149
| New | +$215K |
|
724
Altisource Portfolio Solutions
ASPS
$126M
| $214K | ﹤0.01% |
1,385
+1,254
| +957% | +$194K |
|
|
CALA
725
DELISTED
Calithera Biosciences, Inc
CALA
| $212K | ﹤0.01% |
+1,859
| New | +$212K |
|