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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SHLX
826
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $209K | ﹤0.01% |
22,157
+14,333
| +183% | +$135K |
|
827
Copa Holdings
CPA
$4.82B
| $208K | ﹤0.01% |
4,135
-6,240
| -60% | -$314K |
|
828
O-I Glass
OI
$2.04B
| $208K | ﹤0.01% |
19,647
-19,248
| -49% | -$204K |
|
|
CORE
829
DELISTED
Core Mark Holding Co., Inc.
CORE
| $208K | ﹤0.01% |
+7,206
| New | +$208K |
|
830
NovaGold Resources
NG
$2.84B
| $207K | ﹤0.01% |
17,479
-66,983
| -79% | -$793K |
|
831
Tronox
TROX
$793M
| $207K | ﹤0.01% |
26,419
+9,928
| +60% | +$77.8K |
|
|
PRTY
832
DELISTED
Party City Holdco Inc.
PRTY
| $207K | ﹤0.01% |
79,690
+19,133
| +32% | +$49.7K |
|
833
Franklin Resources
BEN
$12.9B
| $206K | ﹤0.01% |
+10,154
| New | +$206K |
|
834
Intuitive Surgical
ISRG
$163B
| $205K | ﹤0.01% |
867
+480
| +124% | +$113K |
|
835
Liberty Latin America Class C
LILAK
$1.55B
| $205K | ﹤0.01% |
25,299
+20,919
| +478% | +$170K |
|
|
QD
836
Qudian
QD
$710M
| $205K | ﹤0.01% |
165,902
+33,380
| +25% | +$41.2K |
|
|
DOOR
837
DELISTED
MASONITE INTERNATIONAL CORP
DOOR
| $205K | ﹤0.01% |
+2,092
| New | +$205K |
|
|
WIFI
838
DELISTED
Boingo Wireless, Inc.
WIFI
| $205K | ﹤0.01% |
20,177
+18,708
| +1,274% | +$190K |
|
839
ProShares UltraShort NASDAQ Biotechnology
BIS
$2.29M
| $203K | ﹤0.01% |
6,559
+4,373
| +200% | +$135K |
|
840
PagerDuty
PD
$1.55B
| $203K | ﹤0.01% |
7,516
-11,038
| -59% | -$298K |
|
|
ROIC
841
DELISTED
Retail Opportunity Investments Corp.
ROIC
| $203K | ﹤0.01% |
19,527
+13,909
| +248% | +$145K |
|
|
FREE
842
DELISTED
Whole Earth Brands, Inc. Class A Common Stock
FREE
| $203K | ﹤0.01% |
+24,449
| New | +$203K |
|
|
PRVB
843
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $203K | ﹤0.01% |
15,842
+4,223
| +36% | +$54.1K |
|
844
Forward Air
FWRD
$920M
| $201K | ﹤0.01% |
+3,516
| New | +$201K |
|
845
Applied Optoelectronics
AAOI
$1.67B
| $200K | ﹤0.01% |
17,847
+12,437
| +230% | +$139K |
|
846
Cenovus Energy
CVE
$30.4B
| $200K | ﹤0.01% |
51,564
+11,982
| +30% | +$46.5K |
|
847
Dycom Industries
DY
$7.49B
| $199K | ﹤0.01% |
3,776
-7,879
| -68% | -$415K |
|
848
Quadratic Interest Rate Volatility and Inflation Hedge ETF
IVOL
$376M
| $199K | ﹤0.01% |
7,279
+6,510
| +847% | +$178K |
|
|
NBL
849
DELISTED
Noble Energy, Inc.
NBL
| $198K | ﹤0.01% |
23,165
-46,353
| -67% | -$396K |
|
850
Lennox International
LII
$19.9B
| $197K | ﹤0.01% |
+726
| New | +$197K |
|