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 | |
|---|---|---|---|---|---|---|
851
Snap-on
SNA
$17.3B
| $302K | ﹤0.01% |
+1,768
| New | +$302K |
|
|
NGHC
852
DELISTED
National General Holdings Corp
NGHC
| $302K | ﹤0.01% |
+8,856
| New | +$302K |
|
853
Invesco DB Commodity Index Tracking Fund
DBC
$1.27B
| $301K | ﹤0.01% |
20,508
-32,970
| -62% | -$484K |
|
854
Pentair
PNR
$18.5B
| $301K | ﹤0.01% |
+5,674
| New | +$301K |
|
855
CACI
CACI
$10.8B
| $300K | ﹤0.01% |
1,206
+994
| +469% | +$247K |
|
856
VanEck High Yield Muni ETF
HYD
$3.38B
| $300K | ﹤0.01% |
4,877
+1,231
| +34% | +$75.7K |
|
857
Siren ETF Trust Siren Nasdaq NexGen Economy ETF
BLCN
$47.9M
| $299K | ﹤0.01% |
7,355
+3,130
| +74% | +$127K |
|
858
Global X MSCI Greece ETF
GREK
$307M
| $299K | ﹤0.01% |
+11,772
| New | +$299K |
|
859
Viasat
VSAT
$4.28B
| $299K | ﹤0.01% |
+9,181
| New | +$299K |
|
|
HPP
860
Hudson Pacific Properties
HPP
$1.12B
| $298K | ﹤0.01% |
12,443
-4,052
| -25% | -$97K |
|
861
uniQure
QURE
$929M
| $298K | ﹤0.01% |
+8,253
| New | +$298K |
|
862
KBR
KBR
$6.38B
| $297K | ﹤0.01% |
9,605
+8,331
| +654% | +$258K |
|
863
Mercury Systems
MRCY
$4.38B
| $297K | ﹤0.01% |
3,380
+1,269
| +60% | +$112K |
|
|
SOLO
864
DELISTED
Electrameccanica Vehicles Corp. Ltd.
SOLO
| $297K | ﹤0.01% |
48,121
+48,110
| +437,364% | +$297K |
|
865
Kimco Realty
KIM
$15.2B
| $296K | ﹤0.01% |
19,785
-63,450
| -76% | -$949K |
|
866
Telefônica Brasil
VIV
$19.9B
| $296K | ﹤0.01% |
33,550
+19,212
| +134% | +$170K |
|
867
Fabrinet
FN
$12.9B
| $295K | ﹤0.01% |
+3,808
| New | +$295K |
|
868
Direxion Daily Mid Cap Bull 3X Shares
MIDU
$80.4M
| $295K | ﹤0.01% |
+7,345
| New | +$295K |
|
869
PROG Holdings
PRG
$1.44B
| $295K | ﹤0.01% |
+5,482
| New | +$295K |
|
870
Invesco Water Resources ETF
PHO
$2.25B
| $294K | ﹤0.01% |
6,330
+4,735
| +297% | +$220K |
|
871
Bio-Techne
TECH
$8.28B
| $294K | ﹤0.01% |
+3,708
| New | +$294K |
|
872
iShares Latin America 40 ETF
ILF
$1.81B
| $293K | ﹤0.01% |
+10,015
| New | +$293K |
|
873
ProShares Ultra Russell2000
UWM
$393M
| $293K | ﹤0.01% |
+6,552
| New | +$293K |
|
|
HZN
874
DELISTED
Horizon Global Corporation
HZN
| $293K | ﹤0.01% |
34,136
+15,420
| +82% | +$132K |
|
875
Acadia Realty Trust
AKR
$2.59B
| $292K | ﹤0.01% |
20,578
+17,594
| +590% | +$250K |
|