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 |
Apple
AAPL
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
801
Buckle
BKE
$3.09B
| $71K | 0.01% |
2,320
+910
| +65% | +$27.8K |
|
802
NETSCOUT
NTCT
$1.82B
| $71K | 0.01% |
2,339
-5,080
| -68% | -$154K |
|
803
Telus
TU
$24.5B
| $71K | 0.01% |
+5,162
| New | +$71K |
|
|
FLY
804
DELISTED
Fly Leasing Limited
FLY
| $71K | 0.01% |
+5,228
| New | +$71K |
|
805
Heron Therapeutics
HRTX
$222M
| $70K | 0.01% |
2,625
-16,027
| -86% | -$427K |
|
806
Steris
STE
$24.5B
| $70K | 0.01% |
940
-146
| -13% | -$10.9K |
|
|
CCP
807
DELISTED
Care Capital Properties, Inc.
CCP
| $70K | 0.01% |
+2,300
| New | +$70K |
|
808
Paylocity
PCTY
$9.12B
| $69K | 0.01% |
1,724
+274
| +19% | +$11K |
|
809
Progressive
PGR
$143B
| $69K | 0.01% |
+2,179
| New | +$69K |
|
810
Waters Corp
WAT
$18.1B
| $69K | 0.01% |
520
-552
| -51% | -$73.2K |
|
|
BLCM
811
DELISTED
Bellicum Pharmaceuticals, Inc.
BLCM
| $69K | 0.01% |
+345
| New | +$69K |
|
|
LM
812
DELISTED
Legg Mason, Inc.
LM
| $69K | 0.01% |
1,784
+696
| +64% | +$26.9K |
|
|
EEP
813
DELISTED
Enbridge Energy Partners
EEP
| $69K | 0.01% |
3,015
+2,586
| +603% | +$59.2K |
|
|
BBT
814
Beacon Financial Corporation
BBT
$2.11B
| $68K | 0.01% |
2,354
+1,148
| +95% | +$33.2K |
|
|
NRF
815
DELISTED
NorthStar Realty Finance Corp.
NRF
| $68K | 0.01% |
4,014
-2,843
| -41% | -$48.2K |
|
|
LGF
816
DELISTED
Lions Gate Entertainment
LGF
| $68K | 0.01% |
+2,120
| New | +$68K |
|
|
NLSN
817
DELISTED
Nielsen Holdings plc
NLSN
| $68K | 0.01% |
+1,462
| New | +$68K |
|
818
Teucrium Corn Fund
CORN
$49.6M
| $67K | 0.01% |
+3,202
| New | +$67K |
|
819
Cemex
CX
$13.7B
| $67K | 0.01% |
+13,057
| New | +$67K |
|
820
Invesco DB Agriculture Fund
DBA
$805M
| $67K | 0.01% |
3,271
+2,963
| +962% | +$60.7K |
|
821
Navigator Holdings
NVGS
$1.12B
| $67K | 0.01% |
4,918
+3,719
| +310% | +$50.7K |
|
822
Trustmark
TRMK
$2.4B
| $67K | 0.01% |
+2,940
| New | +$67K |
|
|
NPTN
823
DELISTED
NEOPHOTONICS CORP
NPTN
| $67K | 0.01% |
+6,211
| New | +$67K |
|
|
GIMO
824
DELISTED
Gigamon Inc.
GIMO
| $67K | 0.01% |
2,533
+2,347
| +1,262% | +$62.1K |
|
|
ALR
825
DELISTED
Alere Inc
ALR
| $67K | 0.01% |
1,738
+220
| +14% | +$8.48K |
|