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 | |
|---|---|---|---|---|---|---|
1126
Mitek Systems
MITK
$454M
| $69K | ﹤0.01% |
7,195
+4,212
| +141% | +$40.4K |
|
1127
SPDR Portfolio Developed World ex-US ETF
SPDW
$29.8B
| $69K | ﹤0.01% |
+2,161
| New | +$69K |
|
1128
Breakwave Dry Bulk Shipping ETF
BDRY
$57.2M
| $68K | ﹤0.01% |
6,765
+5,865
| +652% | +$59K |
|
1129
Huron Consulting
HURN
$2.36B
| $68K | ﹤0.01% |
+854
| New | +$68K |
|
1130
Immunocore
IMCR
$1.83B
| $68K | ﹤0.01% |
+1,394
| New | +$68K |
|
1131
Barclays
BCS
$72.8B
| $67K | ﹤0.01% |
9,356
-196,382
| -95% | -$1.41M |
|
1132
Brookdale Senior Living
BKD
$1.81B
| $67K | ﹤0.01% |
22,794
-11,951
| -34% | -$35.1K |
|
1133
First American
FAF
$6.74B
| $67K | ﹤0.01% |
+1,207
| New | +$67K |
|
|
GOGL
1134
DELISTED
Golden Ocean Group
GOGL
| $67K | ﹤0.01% |
7,142
-7,795
| -52% | -$73.1K |
|
1135
Invesco
IVZ
$9.88B
| $67K | ﹤0.01% |
4,137
-65,532
| -94% | -$1.06M |
|
1136
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$65.3M
| $67K | ﹤0.01% |
+559
| New | +$67K |
|
1137
scPharmaceuticals
SCPH
$301M
| $67K | ﹤0.01% |
7,492
-19,357
| -72% | -$173K |
|
1138
Blue Bird Corp
BLBD
$1.82B
| $66K | ﹤0.01% |
+3,272
| New | +$66K |
|
1139
Brilliant Earth
BRLT
$37.2M
| $66K | ﹤0.01% |
16,889
+5,409
| +47% | +$21.1K |
|
1140
Kinetik
KNTK
$2.58B
| $66K | ﹤0.01% |
+2,121
| New | +$66K |
|
|
MTA
1141
Metalla Royalty & Streaming
MTA
$511M
| $66K | ﹤0.01% |
11,845
-6,836
| -37% | -$38.1K |
|
|
OTLY
1142
Oatly Group
OTLY
$513M
| $66K | ﹤0.01% |
1,370
-5,591
| -80% | -$269K |
|
1143
Paysign
PAYS
$281M
| $66K | ﹤0.01% |
18,341
+14,310
| +355% | +$51.5K |
|
1144
ProShares K-1 Free Crude Oil Strategy ETF
OILK
$69.5M
| $65K | ﹤0.01% |
1,531
-5,053
| -77% | -$215K |
|
1145
Sixth Street Specialty
TSLX
$2.32B
| $65K | ﹤0.01% |
+3,578
| New | +$65K |
|
1146
Vontier
VNT
$6.34B
| $65K | ﹤0.01% |
2,387
+2,273
| +1,994% | +$61.9K |
|
1147
Floor & Decor
FND
$9.16B
| $64K | ﹤0.01% |
659
-5,973
| -90% | -$580K |
|
1148
Anywhere Real Estate
HOUS
$699M
| $64K | ﹤0.01% |
12,304
+10,130
| +466% | +$52.7K |
|
1149
Harrow
HROW
$1.44B
| $64K | ﹤0.01% |
+3,068
| New | +$64K |
|
1150
LivaNova
LIVN
$3.13B
| $64K | ﹤0.01% |
1,491
-13,812
| -90% | -$593K |
|