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 |
Invesco QQQ Trust
QQQ
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CLCT
526
DELISTED
Collectors Universe
CLCT
| $734K | ﹤0.01% |
9,738
-5,649
| -37% | -$426K |
|
527
Enbridge
ENB
$106B
| $732K | ﹤0.01% |
22,900
+22,875
| +91,500% | +$731K |
|
528
CenterPoint Energy
CNP
$24.7B
| $731K | ﹤0.01% |
33,799
+32,294
| +2,146% | +$698K |
|
529
ING
ING
$73B
| $726K | ﹤0.01% |
76,907
+66,210
| +619% | +$625K |
|
530
Vanguard FTSE Emerging Markets ETF
VWO
$99B
| $720K | ﹤0.01% |
+14,373
| New | +$720K |
|
531
Conduent
CNDT
$442M
| $713K | ﹤0.01% |
148,733
+106,033
| +248% | +$508K |
|
532
Ascendis Pharma
ASND
$12B
| $710K | ﹤0.01% |
4,258
+3,095
| +266% | +$516K |
|
533
Advanced Drainage Systems
WMS
$11B
| $710K | ﹤0.01% |
8,497
+6,910
| +435% | +$577K |
|
534
La-Z-Boy
LZB
$1.43B
| $708K | ﹤0.01% |
+17,792
| New | +$708K |
|
535
Papa John's
PZZA
$1.63B
| $705K | ﹤0.01% |
+8,314
| New | +$705K |
|
|
IDEX
536
DELISTED
Ideanomics, Inc. Common Stock
IDEX
| $705K | ﹤0.01% |
+2,836
| New | +$705K |
|
|
GRUB
537
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $695K | ﹤0.01% |
4,686
-903
| -16% | -$134K |
|
538
HF Sinclair
DINO
$9.57B
| $691K | ﹤0.01% |
+26,742
| New | +$691K |
|
|
NOVA
539
DELISTED
Sunnova Energy
NOVA
| $689K | ﹤0.01% |
15,283
+5,986
| +64% | +$270K |
|
540
DaVita
DVA
$9.46B
| $688K | ﹤0.01% |
+5,863
| New | +$688K |
|
|
MITT
541
AG Mortgage Investment Trust
MITT
$245M
| $686K | ﹤0.01% |
77,615
+32,679
| +73% | +$289K |
|
|
LSI
542
DELISTED
Life Storage, Inc.
LSI
| $681K | ﹤0.01% |
8,559
+2,305
| +37% | +$183K |
|
543
Aurinia Pharmaceuticals
AUPH
$1.61B
| $680K | ﹤0.01% |
49,225
+16,910
| +52% | +$234K |
|
544
Brighthouse Financial
BHF
$2.79B
| $676K | ﹤0.01% |
+18,698
| New | +$676K |
|
545
ProShares Short S&P500
SH
$1.23B
| $674K | ﹤0.01% |
9,380
+5,249
| +127% | +$377K |
|
|
VG
546
DELISTED
Vonage Holdings Corporation
VG
| $674K | ﹤0.01% |
52,389
-35,986
| -41% | -$463K |
|
547
PBF Energy
PBF
$3.26B
| $672K | ﹤0.01% |
94,653
+54,020
| +133% | +$384K |
|
|
BIG
548
DELISTED
Big Lots, Inc.
BIG
| $672K | ﹤0.01% |
15,662
-5,200
| -25% | -$223K |
|
549
ProShares Trust UltraShort Lehman 7-10 Year Treasury
PST
$13.2M
| $666K | ﹤0.01% |
43,143
-11,455
| -21% | -$177K |
|
|
PFPT
550
DELISTED
Proofpoint, Inc.
PFPT
| $661K | ﹤0.01% |
4,852
+4,704
| +3,178% | +$641K |
|