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 |
Amazon
AMZN
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
MGLN
1151
DELISTED
Magellan Health Services, Inc.
MGLN
| $70K | ﹤0.01% |
978
+917
| +1,503% | +$65.6K |
|
|
AAC
1152
DELISTED
AAC Holdings, Inc.
AAC
| $70K | ﹤0.01% |
+9,223
| New | +$70K |
|
1153
Cameco
CCJ
$34B
| $69K | ﹤0.01% |
6,082
+5,286
| +664% | +$60K |
|
1154
iShares US Telecommunications ETF
IYZ
$607M
| $69K | ﹤0.01% |
+2,322
| New | +$69K |
|
|
OAK
1155
DELISTED
OAKTREE CAPITAL GROUP, LLC
OAK
| $69K | ﹤0.01% |
1,676
-278
| -14% | -$11.4K |
|
1156
Ambev
ABEV
$35.9B
| $68K | ﹤0.01% |
15,074
-1,164
| -7% | -$5.25K |
|
1157
AudioCodes
AUDC
$289M
| $68K | ﹤0.01% |
6,823
+6,519
| +2,144% | +$65K |
|
1158
iShares MSCI Pacific ex Japan ETF
EPP
$1.85B
| $68K | ﹤0.01% |
1,518
-11,043
| -88% | -$495K |
|
1159
Neogen
NEOG
$1.19B
| $68K | ﹤0.01% |
1,922
+1,620
| +536% | +$57.3K |
|
1160
Global X Uranium ETF
URA
$4.29B
| $68K | ﹤0.01% |
5,152
-328
| -6% | -$4.33K |
|
|
AT
1161
DELISTED
Atlantic Power Corporation
AT
| $68K | ﹤0.01% |
30,924
-13,038
| -30% | -$28.7K |
|
|
IPHI
1162
DELISTED
INPHI CORPORATION
IPHI
| $68K | ﹤0.01% |
1,801
-2,674
| -60% | -$101K |
|
1163
Chemed
CHE
$6.5B
| $67K | ﹤0.01% |
+211
| New | +$67K |
|
1164
Healthpeak Properties
DOC
$12.6B
| $67K | ﹤0.01% |
2,561
+2,482
| +3,142% | +$64.9K |
|
1165
Dover
DOV
$23.7B
| $67K | ﹤0.01% |
+768
| New | +$67K |
|
|
MDRX
1166
DELISTED
Veradigm Inc. Common Stock
MDRX
| $67K | ﹤0.01% |
+4,762
| New | +$67K |
|
|
HMSY
1167
DELISTED
HMS Holdings Corp.
HMSY
| $67K | ﹤0.01% |
+2,065
| New | +$67K |
|
|
VER
1168
DELISTED
VEREIT, Inc.
VER
| $67K | ﹤0.01% |
1,847
-1,331
| -42% | -$48.3K |
|
1169
CBIZ
CBZ
$3.01B
| $66K | ﹤0.01% |
2,813
+1,819
| +183% | +$42.7K |
|
1170
Global Payments
GPN
$20.7B
| $65K | ﹤0.01% |
+513
| New | +$65K |
|
1171
LGI Homes
LGIH
$1.39B
| $65K | ﹤0.01% |
1,381
-699
| -34% | -$32.9K |
|
1172
RLJ Lodging Trust
RLJ
$1.15B
| $65K | ﹤0.01% |
2,994
+133
| +5% | +$2.89K |
|
1173
Tile Shop Holdings
TTSH
$273M
| $65K | ﹤0.01% |
9,210
-11,327
| -55% | -$79.9K |
|
|
SGYP
1174
DELISTED
Synergy Pharmaceuticals, Inc Common Stock
SGYP
| $65K | ﹤0.01% |
+38,367
| New | +$65K |
|
1175
AngioDynamics
ANGO
$433M
| $64K | ﹤0.01% |
2,976
-1,099
| -27% | -$23.6K |
|