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 | |
|---|---|---|---|---|---|---|
|
CBD
1276
DELISTED
Companhia Brasileira de Distribuicao
CBD
| $44K | ﹤0.01% |
+15,053
| New | +$44K |
|
|
TSP
1277
DELISTED
TuSimple Holdings Inc. Class A Common Stock
TSP
| $44K | ﹤0.01% |
30,155
-28,804
| -49% | -$42K |
|
|
AAC
1278
DELISTED
Ares Acquisition Corporation
AAC
| $44K | ﹤0.01% |
+4,354
| New | +$44K |
|
|
BLU
1279
DELISTED
BELLUS Health Inc.
BLU
| $44K | ﹤0.01% |
+6,177
| New | +$44K |
|
1280
Codexis
CDXS
$219M
| $43K | ﹤0.01% |
10,479
+10,398
| +12,837% | +$42.7K |
|
|
CGAU
1281
Centerra Gold
CGAU
$1.88B
| $43K | ﹤0.01% |
6,692
-11,619
| -63% | -$74.7K |
|
1282
Douglas Elliman
DOUG
$241M
| $43K | ﹤0.01% |
14,802
-3,269
| -18% | -$9.5K |
|
1283
Hudson Technologies
HDSN
$444M
| $43K | ﹤0.01% |
+4,966
| New | +$43K |
|
1284
Magnolia Oil & Gas
MGY
$4.41B
| $43K | ﹤0.01% |
1,991
+1,292
| +185% | +$27.9K |
|
1285
Enviri
NVRI
$983M
| $43K | ﹤0.01% |
6,379
-8,558
| -57% | -$57.7K |
|
1286
ProShares Short Russell2000
RWM
$126M
| $43K | ﹤0.01% |
+1,818
| New | +$43K |
|
|
QUOT
1287
DELISTED
Quotient Technology Inc
QUOT
| $43K | ﹤0.01% |
+13,219
| New | +$43K |
|
1288
EverQuote
EVER
$896M
| $42K | ﹤0.01% |
+3,065
| New | +$42K |
|
1289
Inspire Medical Systems
INSP
$2.37B
| $42K | ﹤0.01% |
+183
| New | +$42K |
|
1290
KraneShares MSCI China Clean Technology Index ETF
KGRN
$65M
| $42K | ﹤0.01% |
1,477
+785
| +113% | +$22.3K |
|
1291
MGIC Investment
MTG
$6.55B
| $42K | ﹤0.01% |
3,150
+556
| +21% | +$7.41K |
|
1292
Southwest Gas
SWX
$5.65B
| $42K | ﹤0.01% |
673
+174
| +35% | +$10.9K |
|
1293
Cue Biopharma
CUE
$57M
| $41K | ﹤0.01% |
+11,586
| New | +$41K |
|
1294
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.81B
| $41K | ﹤0.01% |
1,012
-1,478
| -59% | -$59.9K |
|
1295
CS Disco
LAW
$357M
| $41K | ﹤0.01% |
6,204
+5,905
| +1,975% | +$39K |
|
1296
ProPetro Holding
PUMP
$484M
| $41K | ﹤0.01% |
5,794
-30,139
| -84% | -$213K |
|
|
VGR
1297
DELISTED
Vector Group Ltd.
VGR
| $41K | ﹤0.01% |
+3,472
| New | +$41K |
|
1298
KE Holdings
BEKE
$23.7B
| $40K | ﹤0.01% |
2,169
-342,590
| -99% | -$6.32M |
|
1299
Cathay General Bancorp
CATY
$3.39B
| $40K | ﹤0.01% |
+1,181
| New | +$40K |
|
1300
Dycom Industries
DY
$7.47B
| $40K | ﹤0.01% |
+429
| New | +$40K |
|