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
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1176
Dropbox
DBX
$8.29B
| $61K | ﹤0.01% |
3,439
-26,162
| -88% | -$464K |
|
1177
Fossil Group
FOSL
$159M
| $61K | ﹤0.01% |
+7,774
| New | +$61K |
|
1178
SuRo Capital
SSSS
$210M
| $61K | ﹤0.01% |
11,131
+4,712
| +73% | +$25.8K |
|
|
CNSL
1179
DELISTED
Consolidated Communications Holdings, Inc.
CNSL
| $61K | ﹤0.01% |
+15,754
| New | +$61K |
|
|
AKS
1180
DELISTED
AK Steel Holding Corp.
AKS
| $61K | ﹤0.01% |
18,659
-30,911
| -62% | -$101K |
|
1181
Pathward Financial
CASH
$1.74B
| $60K | ﹤0.01% |
1,644
-3,314
| -67% | -$121K |
|
1182
Chemed
CHE
$6.57B
| $60K | ﹤0.01% |
+138
| New | +$60K |
|
1183
Copel
ELP
$6.84B
| $60K | ﹤0.01% |
8,923
-12,095
| -58% | -$81.3K |
|
1184
TripAdvisor
TRIP
$2.06B
| $60K | ﹤0.01% |
+1,994
| New | +$60K |
|
|
PRTY
1185
DELISTED
Party City Holdco Inc.
PRTY
| $60K | ﹤0.01% |
26,000
+1,879
| +8% | +$4.34K |
|
1186
BlueLinx
BXC
$628M
| $59K | ﹤0.01% |
4,168
+1,803
| +76% | +$25.5K |
|
1187
OneSpan
OSPN
$578M
| $59K | ﹤0.01% |
3,457
+1,973
| +133% | +$33.7K |
|
1188
Movado Group
MOV
$426M
| $58K | ﹤0.01% |
+2,707
| New | +$58K |
|
1189
PG&E
PCG
$33.5B
| $58K | ﹤0.01% |
5,400
-2,214
| -29% | -$23.8K |
|
1190
ProShares UltraShort FTSE Europe
EPV
$16.1M
| $57K | ﹤0.01% |
446
+40
| +10% | +$5.11K |
|
1191
iShares US Energy ETF
IYE
$1.16B
| $57K | ﹤0.01% |
1,800
+200
| +13% | +$6.33K |
|
1192
The RealReal
REAL
$1.02B
| $57K | ﹤0.01% |
+3,047
| New | +$57K |
|
1193
Afya
AFYA
$1.38B
| $56K | ﹤0.01% |
+2,100
| New | +$56K |
|
1194
Pixelworks
PXLW
$61.5M
| $56K | ﹤0.01% |
1,193
+170
| +17% | +$7.98K |
|
1195
Tilray
TLRY
$1.2B
| $56K | ﹤0.01% |
+3,294
| New | +$56K |
|
1196
Vanda Pharmaceuticals
VNDA
$265M
| $56K | ﹤0.01% |
+3,472
| New | +$56K |
|
|
EGIO
1197
DELISTED
Edgio, Inc. Common Stock
EGIO
| $56K | ﹤0.01% |
346
+167
| +93% | +$27K |
|
1198
American Airlines Group
AAL
$8.46B
| $55K | ﹤0.01% |
1,935
-17,916
| -90% | -$509K |
|
1199
Bandwidth Inc
BAND
$458M
| $55K | ﹤0.01% |
+865
| New | +$55K |
|
|
DOYU
1200
DouYu International Holdings
DOYU
$242M
| $55K | ﹤0.01% |
656
+570
| +663% | +$47.8K |
|