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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1176
RingCentral
RNG
$2.75B
| $100K | ﹤0.01% |
+2,972
| New | +$100K |
|
1177
Veeco
VECO
$1.52B
| $100K | ﹤0.01% |
3,240
-16,680
| -84% | -$515K |
|
1178
Applied Industrial Technologies
AIT
$9.94B
| $99K | ﹤0.01% |
+575
| New | +$99K |
|
1179
Caribou Biosciences
CRBU
$168M
| $99K | ﹤0.01% |
17,313
+12,691
| +275% | +$72.6K |
|
1180
Amplify CWP Enhanced Dividend Income ETF
DIVO
$5.07B
| $99K | ﹤0.01% |
+2,722
| New | +$99K |
|
1181
UroGen Pharma
URGN
$869M
| $99K | ﹤0.01% |
6,651
+3,501
| +111% | +$52.1K |
|
|
YALA
1182
Yalla Group
YALA
$1.18B
| $99K | ﹤0.01% |
16,186
+10,284
| +174% | +$62.9K |
|
|
TWKS
1183
DELISTED
Thoughtworks Holding, Inc. Common Stock
TWKS
| $99K | ﹤0.01% |
20,641
+5,993
| +41% | +$28.7K |
|
|
AAN
1184
DELISTED
The Aaron's Company, Inc.
AAN
| $99K | ﹤0.01% |
+9,175
| New | +$99K |
|
1185
Cinemark Holdings
CNK
$3.25B
| $98K | ﹤0.01% |
+6,990
| New | +$98K |
|
1186
Leap Therapeutics
LPTX
$12.4M
| $98K | ﹤0.01% |
23,844
+18,918
| +384% | +$77.8K |
|
1187
Lufax Holding
LU
$2.61B
| $98K | ﹤0.01% |
32,134
-17,227
| -35% | -$52.5K |
|
1188
Tidewater
TDW
$2.93B
| $98K | ﹤0.01% |
1,371
-4,107
| -75% | -$294K |
|
1189
Vitesse Energy
VTS
$968M
| $98K | ﹤0.01% |
4,513
+4,170
| +1,216% | +$90.6K |
|
|
CMPS
1190
Compass Pathways
CMPS
$499M
| $97K | ﹤0.01% |
11,122
+10,606
| +2,055% | +$92.5K |
|
1191
3D Systems Corporation
DDD
$286M
| $96K | ﹤0.01% |
15,123
-3,912
| -21% | -$24.8K |
|
1192
Haverty Furniture Companies
HVT
$371M
| $96K | ﹤0.01% |
+2,715
| New | +$96K |
|
1193
EPR Properties
EPR
$4.45B
| $95K | ﹤0.01% |
+1,966
| New | +$95K |
|
1194
ProShares Ultra Yen
YCL
$55.9M
| $95K | ﹤0.01% |
3,487
+2,801
| +408% | +$76.3K |
|
1195
Lightbridge
LTBR
$362M
| $94K | ﹤0.01% |
29,561
+29,195
| +7,977% | +$92.8K |
|
|
CSW
1196
CSW Industrials, Inc.
CSW
$4.2B
| $93K | ﹤0.01% |
+450
| New | +$93K |
|
1197
Newmark Group
NMRK
$3.41B
| $93K | ﹤0.01% |
+8,525
| New | +$93K |
|
1198
Vanguard Materials ETF
VAW
$2.89B
| $93K | ﹤0.01% |
+494
| New | +$93K |
|
1199
Clarivate
CLVT
$2.88B
| $92K | ﹤0.01% |
+9,999
| New | +$92K |
|
1200
RBB Bancorp
RBB
$332M
| $92K | ﹤0.01% |
4,859
-4,076
| -46% | -$77.2K |
|