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
|
+$35.2M |
| 2 |
Micron Technology
MU
|
+$32.9M |
| 3 |
Berkshire Hathaway Class B
BRK.B
|
+$29.5M |
| 4 |
NVIDIA
NVDA
|
+$22.9M |
| 5 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$22M |
Top Sells
| 1 |
TWX
Time Warner Inc
TWX
|
+$34.8M |
| 2 |
Amazon
AMZN
|
+$33.4M |
| 3 |
Tesla
TSLA
|
+$19.8M |
| 4 |
Netflix
NFLX
|
+$17.7M |
| 5 |
TWTR
Twitter, Inc.
TWTR
|
+$13.5M |
Sector Composition
| 1 | Technology | 20.43% |
| 2 | Consumer Discretionary | 15.24% |
| 3 | Communication Services | 12% |
| 4 | Financials | 10.18% |
| 5 | Industrials | 9.87% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
National Beverage
FIZZ
$3.68B
| $184K | ﹤0.01% |
3,446
-10,544
| -75% | -$563K |
|
777
Kornit Digital
KRNT
$675M
| $184K | ﹤0.01% |
+10,359
| New | +$184K |
|
778
Pultegroup
PHM
$27B
| $184K | ﹤0.01% |
+6,405
| New | +$184K |
|
779
Teck Resources
TECK
$19.1B
| $184K | ﹤0.01% |
7,239
-41,802
| -85% | -$1.06M |
|
780
Air Lease Corp
AL
$7.11B
| $182K | ﹤0.01% |
4,358
-7,801
| -64% | -$326K |
|
781
InterDigital
IDCC
$7.89B
| $182K | ﹤0.01% |
+2,252
| New | +$182K |
|
782
iShares US Healthcare ETF
IYH
$2.79B
| $182K | ﹤0.01% |
+5,135
| New | +$182K |
|
783
NOV
NOV
$4.85B
| $182K | ﹤0.01% |
+4,200
| New | +$182K |
|
784
Ryanair
RYAAY
$31.7B
| $181K | ﹤0.01% |
3,970
+3,860
| +3,509% | +$176K |
|
|
WDR
785
DELISTED
Waddell & Reed Financial, Inc.
WDR
| $181K | ﹤0.01% |
10,092
+7,329
| +265% | +$131K |
|
|
MIK
786
DELISTED
Michaels Stores, Inc
MIK
| $180K | ﹤0.01% |
+9,418
| New | +$180K |
|
787
Mercury Systems
MRCY
$4.12B
| $179K | ﹤0.01% |
4,711
+1,501
| +47% | +$57K |
|
788
Avery Dennison
AVY
$13B
| $178K | ﹤0.01% |
1,753
-147
| -8% | -$14.9K |
|
789
Fair Isaac
FICO
$37.1B
| $178K | ﹤0.01% |
924
-1,944
| -68% | -$374K |
|
|
MTBL
790
DELISTED
Moatable, Inc. American Depositary Share (each representing forty-five (45) Class A Ordinary Shares)
MTBL
| $178K | ﹤0.01% |
+240,760
| New | +$178K |
|
791
Direxion Daily S&P Oil & Gas Exp & Prod Bear 2X Shares
DRIP
$52.2M
| $177K | ﹤0.01% |
724
+617
| +577% | +$151K |
|
792
Vermilion Energy
VET
$1.13B
| $176K | ﹤0.01% |
4,898
-756
| -13% | -$27.2K |
|
793
Viasat
VSAT
$4.14B
| $175K | ﹤0.01% |
2,663
-676
| -20% | -$44.4K |
|
|
LFC
794
DELISTED
China Life Insurance Company Ltd.
LFC
| $174K | ﹤0.01% |
13,642
+3,964
| +41% | +$50.6K |
|
795
Opko Health
OPK
$1.12B
| $173K | ﹤0.01% |
36,962
+25,034
| +210% | +$117K |
|
|
WRD
796
DELISTED
WildHorse Resource Development
WRD
| $173K | ﹤0.01% |
+6,830
| New | +$173K |
|
797
Cenovus Energy
CVE
$29.3B
| $172K | ﹤0.01% |
16,598
-14,950
| -47% | -$155K |
|
798
Host Hotels & Resorts
HST
$12B
| $171K | ﹤0.01% |
+8,127
| New | +$171K |
|
799
Amplify Mobile Payments ETF
IPAY
$275M
| $171K | ﹤0.01% |
4,426
+1,358
| +44% | +$52.5K |
|
800
Vanguard Total International Stock ETF
VXUS
$103B
| $171K | ﹤0.01% |
3,169
+2,011
| +174% | +$109K |
|