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 | |
|---|---|---|---|---|---|---|
|
TECD
701
DELISTED
Tech Data Corp
TECD
| $98K | 0.01% |
+1,484
| New | +$98K |
|
|
ESL
702
DELISTED
Esterline Technologies
ESL
| $98K | 0.01% |
1,222
+1,218
| +30,450% | +$97.7K |
|
|
ALJ
703
DELISTED
Alon U S A Energy Inc
ALJ
| $98K | 0.01% |
6,662
+5,464
| +456% | +$80.4K |
|
|
JRJC
704
DELISTED
China Finance Online Co., Ltd.
JRJC
| $97K | 0.01% |
+1,565
| New | +$97K |
|
705
ING
ING
$74.7B
| $96K | 0.01% |
7,146
+2,134
| +43% | +$28.7K |
|
706
iShares Russell 1000 Value ETF
IWD
$63.6B
| $96K | 0.01% |
+986
| New | +$96K |
|
|
ECYT
707
DELISTED
Endocyte, Inc. Common Stock
ECYT
| $96K | 0.01% |
24,076
+13,739
| +133% | +$54.8K |
|
|
TIME
708
DELISTED
Time Inc.
TIME
| $96K | 0.01% |
6,145
+5,331
| +655% | +$83.3K |
|
|
ISIL
709
DELISTED
Intersil Corp
ISIL
| $96K | 0.01% |
+7,554
| New | +$96K |
|
|
LJPC
710
DELISTED
La Jolla Pharmaceutical Company
LJPC
| $96K | 0.01% |
+3,584
| New | +$96K |
|
711
Greif
GEF
$3.51B
| $95K | 0.01% |
3,113
-520
| -14% | -$15.9K |
|
|
INFO
712
DELISTED
IHS Markit Ltd. Common Shares
INFO
| $95K | 0.01% |
3,178
-333
| -9% | -$9.95K |
|
713
Delek Logistics
DKL
$2.41B
| $94K | 0.01% |
2,635
-1,764
| -40% | -$62.9K |
|
714
Jabil
JBL
$22.9B
| $93K | 0.01% |
+3,994
| New | +$93K |
|
715
Pitney Bowes
PBI
$1.96B
| $93K | 0.01% |
4,539
-1,726
| -28% | -$35.4K |
|
|
MYCC
716
DELISTED
ClubCorp Holdings, Inc.
MYCC
| $93K | 0.01% |
+5,112
| New | +$93K |
|
|
UFS
717
DELISTED
DOMTAR CORPORATION (New)
UFS
| $93K | 0.01% |
2,523
+2,186
| +649% | +$80.6K |
|
718
Blackbaud
BLKB
$3.35B
| $92K | 0.01% |
1,405
+522
| +59% | +$34.2K |
|
719
Integer Holdings
ITGR
$3.61B
| $92K | 0.01% |
1,938
-1,745
| -47% | -$82.8K |
|
720
Stifel
SF
$11.5B
| $92K | 0.01% |
3,258
+1,126
| +53% | +$31.8K |
|
721
Tractor Supply
TSCO
$31.3B
| $92K | 0.01% |
+5,405
| New | +$92K |
|
722
VirnetX
VHC
$67.4M
| $92K | 0.01% |
1,806
+630
| +54% | +$32.1K |
|
|
MENT
723
DELISTED
Mentor Graphics Corp
MENT
| $92K | 0.01% |
+5,020
| New | +$92K |
|
|
ARR
724
Armour Residential REIT
ARR
$1.67B
| $91K | 0.01% |
838
+831
| +11,871% | +$90.2K |
|
725
Teck Resources
TECK
$19.4B
| $91K | 0.01% |
23,823
-4,317
| -15% | -$16.5K |
|