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
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CAA
626
DELISTED
CalAtlantic Group, Inc.
CAA
| $123K | 0.01% |
3,254
+2,498
| +330% | +$94.4K |
|
|
DMND
627
DELISTED
DIAMOND FOODS, INC.
DMND
| $123K | 0.01% |
3,202
-3,894
| -55% | -$150K |
|
628
Cintas
CTAS
$80.6B
| $122K | 0.01% |
5,364
+2,764
| +106% | +$62.9K |
|
629
Kodak
KODK
$481M
| $122K | 0.01% |
9,759
+2,983
| +44% | +$37.3K |
|
630
Annaly Capital Management
NLY
$14B
| $122K | 0.01% |
3,273
+1,140
| +53% | +$42.5K |
|
|
KS
631
DELISTED
KapStone Paper and Pack Corp.
KS
| $122K | 0.01% |
5,424
+483
| +10% | +$10.9K |
|
|
CPHD
632
DELISTED
Cepheid Inc
CPHD
| $122K | 0.01% |
3,349
+2,533
| +310% | +$92.3K |
|
633
Gen Digital
GEN
$17.6B
| $121K | 0.01% |
5,763
+3,200
| +125% | +$67.2K |
|
634
Keurig Dr Pepper
KDP
$37B
| $121K | 0.01% |
+1,299
| New | +$121K |
|
635
ProShares UltraShort Real Estate
SRS
$22.1M
| $120K | 0.01% |
336
+106
| +46% | +$37.9K |
|
|
AMID
636
DELISTED
American Midstream Partners, LP
AMID
| $120K | 0.01% |
+14,834
| New | +$120K |
|
637
ProShares Ultra Energy
DIG
$73.6M
| $119K | 0.01% |
+3,188
| New | +$119K |
|
638
Stratasys
SSYS
$837M
| $119K | 0.01% |
5,074
+4,921
| +3,216% | +$115K |
|
639
A10 Networks
ATEN
$1.26B
| $118K | 0.01% |
17,996
-1,075
| -6% | -$7.05K |
|
640
National Grid
NGG
$70.6B
| $118K | 0.01% |
1,743
+256
| +17% | +$17.3K |
|
|
MDSO
641
DELISTED
Medidata Solutions, Inc.
MDSO
| $118K | 0.01% |
2,410
+476
| +25% | +$23.3K |
|
642
AB InBev
BUD
$115B
| $117K | 0.01% |
941
-8,140
| -90% | -$1.01M |
|
|
ABB
643
DELISTED
ABB Ltd.
ABB
| $117K | 0.01% |
6,628
-3,422
| -34% | -$60.4K |
|
644
Aecom
ACM
$16.8B
| $116K | 0.01% |
3,874
+440
| +13% | +$13.2K |
|
645
Element Solutions
ESI
$6.37B
| $115K | 0.01% |
9,008
-52,771
| -85% | -$674K |
|
646
Dr. Reddy's Laboratories
RDY
$12.3B
| $115K | 0.01% |
12,525
-1,000
| -7% | -$9.18K |
|
647
Vanguard Consumer Staples ETF
VDC
$7.53B
| $115K | 0.01% |
892
+21
| +2% | +$2.71K |
|
648
KraneShares CSI China Internet ETF
KWEB
$9.53B
| $114K | 0.01% |
2,986
+1,136
| +61% | +$43.4K |
|
|
ANDV
649
DELISTED
Andeavor
ANDV
| $114K | 0.01% |
+1,085
| New | +$114K |
|
|
PBFX
650
DELISTED
PBF LOGISTICS LP
PBFX
| $113K | 0.01% |
5,296
-30,597
| -85% | -$653K |
|