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 |
Tesla
TSLA
|
+$27.1M |
| 2 |
Netflix
NFLX
|
+$24.7M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$20.1M |
| 4 |
TWX
Time Warner Inc
TWX
|
+$18.3M |
| 5 |
Alibaba
BABA
|
+$14.8M |
Top Sells
| 1 |
Amazon
AMZN
|
+$71.9M |
| 2 |
Micron Technology
MU
|
+$47.7M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$26.3M |
| 4 |
Boeing
BA
|
+$21M |
| 5 |
Citigroup
C
|
+$19.6M |
Sector Composition
| 1 | Consumer Discretionary | 15.64% |
| 2 | Communication Services | 14.16% |
| 3 | Technology | 12.46% |
| 4 | Financials | 10.94% |
| 5 | Healthcare | 10.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
626
Amplify Transformational Data Sharing ETF
BLOK
$1.24B
| $208K | 0.01% |
+10,920
| New | +$208K |
|
627
Global X Robotics & Artificial Intelligence ETF
BOTZ
$2.86B
| $207K | 0.01% |
8,575
+6,311
| +279% | +$152K |
|
628
Flotek Industries
FTK
$331M
| $207K | 0.01% |
5,671
+2,217
| +64% | +$80.9K |
|
629
Lithia Motors
LAD
$8.64B
| $207K | 0.01% |
+2,064
| New | +$207K |
|
630
CoreCivic
CXW
$2.18B
| $206K | 0.01% |
+10,597
| New | +$206K |
|
631
iShares MSCI ACWI ETF
ACWI
$22.3B
| $205K | 0.01% |
+2,868
| New | +$205K |
|
632
AngloGold Ashanti
AU
$32.6B
| $205K | 0.01% |
21,681
-14,855
| -41% | -$140K |
|
633
Johnson Controls International
JCI
$70.5B
| $205K | 0.01% |
+5,824
| New | +$205K |
|
634
Brinker International
EAT
$6.88B
| $204K | 0.01% |
+5,673
| New | +$204K |
|
635
NatWest
NWG
$57.6B
| $204K | 0.01% |
+25,603
| New | +$204K |
|
636
Vanguard Total World Stock ETF
VT
$52.3B
| $203K | 0.01% |
+2,762
| New | +$203K |
|
|
AMRN
637
Amarin Corp
AMRN
$310M
| $202K | 0.01% |
3,360
+689
| +26% | +$41.4K |
|
638
Avery Dennison
AVY
$12.8B
| $201K | 0.01% |
1,900
-2,077
| -52% | -$220K |
|
639
Gannett
GCI
$601M
| $201K | 0.01% |
+11,784
| New | +$201K |
|
|
VSI
640
DELISTED
Vitamin Shoppe Inc.
VSI
| $201K | 0.01% |
46,402
+44,363
| +2,176% | +$192K |
|
641
Teucrium Corn Fund
CORN
$48.5M
| $200K | 0.01% |
11,178
+6,990
| +167% | +$125K |
|
642
Icon
ICLR
$12.9B
| $197K | 0.01% |
+1,672
| New | +$197K |
|
643
Century Aluminum
CENX
$2.09B
| $196K | 0.01% |
11,893
-45,508
| -79% | -$750K |
|
644
iShares US Oil & Gas Exploration & Production ETF
IEO
$475M
| $196K | 0.01% |
+3,091
| New | +$196K |
|
645
Natural Health Trends
NHTC
$54.3M
| $196K | 0.01% |
+10,356
| New | +$196K |
|
646
Telecom Argentina
TEO
$3.26B
| $196K | 0.01% |
+6,283
| New | +$196K |
|
|
AJRD
647
DELISTED
Aerojet Rocketdyne Holdings, Inc.
AJRD
| $196K | 0.01% |
+7,039
| New | +$196K |
|
648
Vanguard Mid-Cap Value ETF
VOE
$18.7B
| $195K | 0.01% |
1,791
+537
| +43% | +$58.5K |
|
649
CNX Resources
CNX
$4.14B
| $194K | 0.01% |
12,595
-14,283
| -53% | -$220K |
|
650
Digimarc
DMRC
$203M
| $194K | 0.01% |
8,133
+5,467
| +205% | +$130K |
|