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 |
Alphabet (Google) Class C
GOOG
|
+$54.1M |
| 2 |
Apple
AAPL
|
+$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
+$16.5M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$9.89M |
| 2 |
McDonald's
MCD
|
+$8.52M |
| 3 |
Ralph Lauren
RL
|
+$5.22M |
| 4 |
Intel
INTC
|
+$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
+$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SCMP
826
DELISTED
Sucampo Pharmaceuticals, Inc.
SCMP
| $64K | 0.01% |
3,909
-7,029
| -64% | -$115K |
|
827
New Oriental
EDU
$9.04B
| $63K | 0.01% |
+2,607
| New | +$63K |
|
828
Icahn Enterprises
IEP
$4.77B
| $63K | 0.01% |
737
-577
| -44% | -$49.3K |
|
829
NetApp
NTAP
$24.7B
| $63K | 0.01% |
2,002
-16,812
| -89% | -$529K |
|
830
Invesco Pharmaceuticals ETF
PJP
$267M
| $63K | 0.01% |
810
+383
| +90% | +$29.8K |
|
831
Dr. Reddy's Laboratories
RDY
$12.1B
| $62K | 0.01% |
+5,610
| New | +$62K |
|
832
Targa Resources
TRGP
$35.2B
| $62K | 0.01% |
700
-2,700
| -79% | -$239K |
|
833
Walker & Dunlop
WD
$2.93B
| $62K | 0.01% |
+2,343
| New | +$62K |
|
|
LRE
834
DELISTED
LRR ENERGY LP
LRE
| $62K | 0.01% |
8,394
+7,634
| +1,004% | +$56.4K |
|
|
AGEN
835
Agenus
AGEN
$154M
| $61K | 0.01% |
366
-389
| -52% | -$64.8K |
|
836
Carlyle Group
CG
$23.7B
| $61K | 0.01% |
2,179
-9,267
| -81% | -$259K |
|
837
Cleveland-Cliffs
CLF
$5.62B
| $61K | 0.01% |
14,222
+278
| +2% | +$1.19K |
|
838
iShares MSCI United Kingdom ETF
EWU
$2.92B
| $61K | 0.01% |
1,682
+1,367
| +434% | +$49.6K |
|
839
MSCI
MSCI
$43.6B
| $61K | 0.01% |
995
+619
| +165% | +$37.9K |
|
|
PER
840
DELISTED
SANDRIDGE PERMIAN TRUST
PER
| $61K | 0.01% |
8,280
+6,600
| +393% | +$48.6K |
|
841
Chart Industries
GTLS
$8.95B
| $60K | 0.01% |
1,702
-1,850
| -52% | -$65.2K |
|
842
Applied Optoelectronics
AAOI
$1.73B
| $60K | 0.01% |
3,512
+3,432
| +4,290% | +$58.6K |
|
843
iShares MSCI EAFE Growth ETF
EFG
$13.3B
| $60K | 0.01% |
+870
| New | +$60K |
|
844
LKQ Corp
LKQ
$8.26B
| $60K | 0.01% |
2,011
-1,214
| -38% | -$36.2K |
|
|
AIFU
845
AIFU Inc. Class A Ordinary Share
AIFU
$83.4M
| $60K | 0.01% |
+345
| New | +$60K |
|
846
Globus Medical
GMED
$7.89B
| $59K | ﹤0.01% |
2,335
+1,019
| +77% | +$25.7K |
|
847
Natural Resource Partners
NRP
$1.35B
| $59K | ﹤0.01% |
1,572
+1,214
| +339% | +$45.6K |
|
848
Option Care Health
OPCH
$4.66B
| $59K | ﹤0.01% |
+4,119
| New | +$59K |
|
849
TC Energy
TRP
$54B
| $59K | ﹤0.01% |
1,457
-286
| -16% | -$11.6K |
|
|
WLB
850
DELISTED
Westmoreland Coal Company
WLB
| $59K | ﹤0.01% |
2,868
-757
| -21% | -$15.6K |
|