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 | |
|---|---|---|---|---|---|---|
701
Graphic Packaging
GPK
$6.14B
| $94K | 0.01% |
6,751
+3,114
| +86% | +$43.4K |
|
702
Upbound Group
UPBD
$1.46B
| $94K | 0.01% |
3,320
-2,991
| -47% | -$84.7K |
|
|
GTI
703
DELISTED
GRAFTECH INTERNATIONAL LTD
GTI
| $94K | 0.01% |
18,969
+16,627
| +710% | +$82.4K |
|
|
ROSE
704
DELISTED
ROSETTA RESOURCES INC
ROSE
| $94K | 0.01% |
+4,105
| New | +$94K |
|
705
Copa Holdings
CPA
$4.73B
| $93K | 0.01% |
1,131
-2,803
| -71% | -$230K |
|
706
Goodyear
GT
$2.45B
| $93K | 0.01% |
3,095
+2,077
| +204% | +$62.4K |
|
707
HCI Group
HCI
$2.31B
| $93K | 0.01% |
2,122
-5,530
| -72% | -$242K |
|
708
Honda
HMC
$44.4B
| $93K | 0.01% |
2,900
-2,261
| -44% | -$72.5K |
|
709
Hyster-Yale Materials Handling
HY
$637M
| $93K | 0.01% |
1,354
+912
| +206% | +$62.6K |
|
710
Nelnet
NNI
$4.44B
| $93K | 0.01% |
2,157
+1,836
| +572% | +$79.2K |
|
711
Sleep Number
SNBR
$211M
| $93K | 0.01% |
+3,121
| New | +$93K |
|
|
XNET
712
Xunlei
XNET
$454M
| $93K | 0.01% |
7,792
+5,250
| +207% | +$62.7K |
|
|
BDSI
713
DELISTED
BioDelivery Sciences International, Inc.
BDSI
| $92K | 0.01% |
11,673
-1,601
| -12% | -$12.6K |
|
714
Open Text
OTEX
$8.93B
| $91K | 0.01% |
4,536
+3,252
| +253% | +$65.2K |
|
|
TOUR
715
Tuniu
TOUR
$109M
| $91K | 0.01% |
+5,102
| New | +$91K |
|
716
Equity Residential
EQR
$25.2B
| $90K | 0.01% |
1,291
-2,172
| -63% | -$151K |
|
717
iShares MSCI Germany ETF
EWG
$2.38B
| $90K | 0.01% |
+3,242
| New | +$90K |
|
718
J.M. Smucker
SJM
$11.7B
| $90K | 0.01% |
+832
| New | +$90K |
|
|
RLD
719
DELISTED
REALD INC COM STK
RLD
| $90K | 0.01% |
+7,345
| New | +$90K |
|
720
Lumen
LUMN
$6.3B
| $89K | 0.01% |
+3,045
| New | +$89K |
|
|
CAA
721
DELISTED
CalAtlantic Group, Inc.
CAA
| $89K | 0.01% |
2,015
+533
| +36% | +$23.5K |
|
722
America Movil
AMX
$59.6B
| $88K | 0.01% |
4,163
+3,841
| +1,193% | +$81.2K |
|
|
HIMX
723
Himax Technologies
HIMX
$1.47B
| $88K | 0.01% |
10,969
+5,053
| +85% | +$40.5K |
|
724
NVIDIA
NVDA
$4.32T
| $88K | 0.01% |
+177,000
| New | +$88K |
|
|
PDCO
725
DELISTED
Patterson Companies, Inc.
PDCO
| $88K | 0.01% |
1,814
-1,140
| -39% | -$55.3K |
|