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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
BETR
601
DELISTED
Amplify Snack Brands, Inc.
BETR
| $113K | 0.01% |
7,940
+3,441
| +76% | +$49K |
|
602
Galicia Financial Group
GGAL
$5.1B
| $112K | 0.01% |
+3,981
| New | +$112K |
|
603
Verint Systems
VRNT
$1.23B
| $112K | 0.01% |
6,605
+6,134
| +1,302% | +$104K |
|
|
SC
604
DELISTED
SANTANDER CONSUMER USA HOLDINGS INC
SC
| $112K | 0.01% |
10,713
-251
| -2% | -$2.62K |
|
|
ENLC
605
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $111K | 0.01% |
9,899
+4,413
| +80% | +$49.5K |
|
|
CLC
606
DELISTED
Clarcor
CLC
| $111K | 0.01% |
1,921
+1,825
| +1,901% | +$105K |
|
|
FEIC
607
DELISTED
FEI COMPANY
FEIC
| $111K | 0.01% |
1,258
+1,195
| +1,897% | +$105K |
|
608
Acadia Healthcare
ACHC
$2.04B
| $110K | 0.01% |
+2,003
| New | +$110K |
|
609
Exact Sciences
EXAS
$10.6B
| $110K | 0.01% |
+16,328
| New | +$110K |
|
610
Lincoln National
LNC
$7.94B
| $110K | 0.01% |
+2,813
| New | +$110K |
|
611
iShares S&P 100 ETF
OEF
$22.5B
| $109K | 0.01% |
+1,197
| New | +$109K |
|
612
Scorpio Tankers
STNG
$2.9B
| $109K | 0.01% |
1,871
+1,840
| +5,935% | +$107K |
|
613
USA Compression Partners
USAC
$2.87B
| $109K | 0.01% |
9,356
+5,161
| +123% | +$60.1K |
|
|
IMGN
614
DELISTED
Immunogen Inc
IMGN
| $108K | 0.01% |
12,770
+11,993
| +1,544% | +$101K |
|
615
Groupon
GRPN
$925M
| $107K | 0.01% |
1,347
+363
| +37% | +$28.8K |
|
616
City Holding Co
CHCO
$1.83B
| $106K | 0.01% |
+2,232
| New | +$106K |
|
617
Nelnet
NNI
$4.48B
| $106K | 0.01% |
+2,708
| New | +$106K |
|
618
ProShares Ultra Financials
UYG
$886M
| $106K | 0.01% |
4,959
-12,405
| -71% | -$265K |
|
619
Ryman Hospitality Properties
RHP
$6.4B
| $105K | 0.01% |
2,040
+1,914
| +1,519% | +$98.5K |
|
|
PNK
620
DELISTED
Pinnacle Entertainment Inc.
PNK
| $105K | 0.01% |
+2,995
| New | +$105K |
|
|
BEAV
621
DELISTED
B/E Aerospace Inc
BEAV
| $105K | 0.01% |
2,290
+909
| +66% | +$41.7K |
|
622
Lumentum
LITE
$11.5B
| $104K | 0.01% |
+3,865
| New | +$104K |
|
623
Stratasys
SSYS
$850M
| $104K | 0.01% |
4,044
-1,030
| -20% | -$26.5K |
|
624
iShare MSCI Eurozone ETF
EZU
$7.97B
| $103K | 0.01% |
3,007
+35
| +1% | +$1.2K |
|
625
Global X MSCI Greece ETF
GREK
$308M
| $103K | 0.01% |
4,573
+1,135
| +33% | +$25.6K |
|