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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
851
Autohome
ATHM
$3.4B
| $165K | ﹤0.01% |
4,956
-7,072
| -59% | -$235K |
|
852
Tilray
TLRY
$1.2B
| $165K | ﹤0.01% |
65,391
+64,391
| +6,439% | +$162K |
|
|
NARI
853
DELISTED
Inari Medical, Inc. Common Stock
NARI
| $165K | ﹤0.01% |
2,681
+2,261
| +538% | +$139K |
|
|
AMYT
854
DELISTED
Amryt Pharma plc American Depositary Shares
AMYT
| $164K | ﹤0.01% |
+11,282
| New | +$164K |
|
855
Kayne Anderson Energy Infrastructure Fund
KYN
$2.05B
| $163K | ﹤0.01% |
18,907
+1,887
| +11% | +$16.3K |
|
856
Playboy, Inc. Common Stock
PLBY
$197M
| $163K | ﹤0.01% |
82,770
+75,041
| +971% | +$148K |
|
857
ProShares Trust UltraShort Lehman 7-10 Year Treasury
PST
$13.2M
| $163K | ﹤0.01% |
7,822
+7,378
| +1,662% | +$154K |
|
858
Guidewire Software
GWRE
$21.3B
| $160K | ﹤0.01% |
1,952
+1,498
| +330% | +$123K |
|
859
Waters Corp
WAT
$17.4B
| $160K | ﹤0.01% |
+518
| New | +$160K |
|
860
Yelp
YELP
$1.97B
| $160K | ﹤0.01% |
+5,225
| New | +$160K |
|
861
Eagle Bancorp
EGBN
$596M
| $159K | ﹤0.01% |
+4,760
| New | +$159K |
|
|
ADAM
862
Adamas Trust, Inc. Common Stock
ADAM
$659M
| $159K | ﹤0.01% |
15,997
+15,272
| +2,106% | +$152K |
|
863
SKYX Platforms
SKYX
$126M
| $158K | ﹤0.01% |
45,929
+43,061
| +1,501% | +$148K |
|
864
Vanguard Russell 2000 ETF
VTWO
$12.7B
| $158K | ﹤0.01% |
2,195
+1,969
| +871% | +$142K |
|
865
Comfort Systems
FIX
$26.5B
| $157K | ﹤0.01% |
1,076
-1,729
| -62% | -$252K |
|
866
SK Telecom
SKM
$8.33B
| $157K | ﹤0.01% |
7,671
+4,527
| +144% | +$92.7K |
|
867
St. Joe Company
JOE
$2.91B
| $156K | ﹤0.01% |
3,756
+3,109
| +481% | +$129K |
|
868
Arcus Biosciences
RCUS
$1.25B
| $156K | ﹤0.01% |
+8,598
| New | +$156K |
|
|
CYB
869
DELISTED
WisdomTree Chinese Yuan Strategy Fund
CYB
| $156K | ﹤0.01% |
6,158
+3,785
| +160% | +$95.9K |
|
870
Mercury Systems
MRCY
$4.3B
| $155K | ﹤0.01% |
3,038
-505
| -14% | -$25.8K |
|
871
1-800-Flowers.com
FLWS
$326M
| $154K | ﹤0.01% |
13,468
-41,166
| -75% | -$471K |
|
872
Invesco CurrencyShares Canadian Dollar Trust
FXC
$91.6M
| $154K | ﹤0.01% |
2,130
+2,100
| +7,000% | +$152K |
|
873
Globus Medical
GMED
$7.89B
| $154K | ﹤0.01% |
2,733
-18,990
| -87% | -$1.07M |
|
874
iShares S&P GSCI Commodity-Indexed Trust
GSG
$1B
| $154K | ﹤0.01% |
7,690
-11,335
| -60% | -$227K |
|
875
MBIA
MBI
$374M
| $154K | ﹤0.01% |
16,730
-73,254
| -81% | -$674K |
|