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 | |
|---|---|---|---|---|---|---|
|
JNP
776
DELISTED
Juniper Pharmaceuticals, Inc. Common Stock
JNP
| $66K | 0.01% |
9,991
+5,086
| +104% | +$33.6K |
|
777
Chegg
CHGG
$173M
| $65K | 0.01% |
14,659
+14,616
| +33,991% | +$64.8K |
|
778
Enerpac Tool Group
EPAC
$2.28B
| $65K | 0.01% |
2,660
+1,394
| +110% | +$34.1K |
|
779
iShares US Home Construction ETF
ITB
$3.33B
| $65K | 0.01% |
2,429
+1,238
| +104% | +$33.1K |
|
|
CERN
780
DELISTED
Cerner Corp
CERN
| $65K | 0.01% |
+1,230
| New | +$65K |
|
|
EDE
781
DELISTED
Empire District Electric
EDE
| $65K | 0.01% |
+1,996
| New | +$65K |
|
782
VanEck Biotech ETF
BBH
$357M
| $64K | 0.01% |
625
-537
| -46% | -$55K |
|
783
Commault Systems
CVLT
$7.84B
| $64K | 0.01% |
+1,498
| New | +$64K |
|
784
Honda
HMC
$44.3B
| $63K | 0.01% |
+2,324
| New | +$63K |
|
785
Huntsman Corp
HUN
$1.94B
| $63K | 0.01% |
+4,738
| New | +$63K |
|
786
NovaGold Resources
NG
$2.84B
| $63K | 0.01% |
12,527
+2,272
| +22% | +$11.4K |
|
787
UGI
UGI
$7.38B
| $63K | 0.01% |
1,570
+1,344
| +595% | +$53.9K |
|
|
MACK
788
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
| $63K | 0.01% |
972
-658
| -40% | -$42.6K |
|
789
American Homes 4 Rent
AMH
$12.7B
| $62K | ﹤0.01% |
3,930
-6,124
| -61% | -$96.6K |
|
790
Cedar Fair
FUN
$2.2B
| $62K | ﹤0.01% |
1,050
+495
| +89% | +$29.2K |
|
|
CAJ
791
DELISTED
Canon, Inc.
CAJ
| $62K | ﹤0.01% |
+2,088
| New | +$62K |
|
|
TTPH
792
DELISTED
Tetraphase Pharmaceuticals, Inc.
TTPH
| $62K | ﹤0.01% |
+679
| New | +$62K |
|
|
AF
793
DELISTED
Astoria Financial Corporation
AF
| $62K | ﹤0.01% |
3,919
+219
| +6% | +$3.47K |
|
|
NILE
794
DELISTED
Blue Nile, Inc.
NILE
| $62K | ﹤0.01% |
2,440
-2,406
| -50% | -$61.1K |
|
795
Huntington Ingalls Industries
HII
$10.7B
| $61K | ﹤0.01% |
+452
| New | +$61K |
|
796
iShares US Healthcare Providers ETF
IHF
$828M
| $61K | ﹤0.01% |
+2,520
| New | +$61K |
|
797
Noodles & Co
NDLS
$30.6M
| $61K | ﹤0.01% |
+5,197
| New | +$61K |
|
|
CDK
798
DELISTED
CDK Global, Inc.
CDK
| $61K | ﹤0.01% |
1,325
-3,664
| -73% | -$169K |
|
|
IFN
799
India Fund
IFN
$604M
| $60K | ﹤0.01% |
2,640
+2,241
| +562% | +$50.9K |
|
800
PotlatchDeltic
PCH
$3.21B
| $60K | ﹤0.01% |
+1,935
| New | +$60K |
|