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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
301
Petrobras
PBR
$78.9B
| $1.08M | ﹤0.01% |
101,168
-1,113,362
| -92% | -$11.9M |
|
302
Lincoln National
LNC
$7.9B
| $1.07M | ﹤0.01% |
34,937
-7,478
| -18% | -$230K |
|
303
Camtek
CAMT
$3.71B
| $1.06M | ﹤0.01% |
48,476
-2,336
| -5% | -$51.3K |
|
304
Kimberly-Clark
KMB
$43.1B
| $1.06M | ﹤0.01% |
+7,802
| New | +$1.06M |
|
305
Trip.com Group
TCOM
$47.7B
| $1.05M | ﹤0.01% |
30,465
+21,365
| +235% | +$734K |
|
306
Box
BOX
$4.8B
| $1.04M | ﹤0.01% |
33,425
-13,572
| -29% | -$422K |
|
307
Qiagen
QGEN
$10.3B
| $1.04M | ﹤0.01% |
19,678
-23,367
| -54% | -$1.23M |
|
308
FerroAtlántica
GSM
$801M
| $1.02M | ﹤0.01% |
265,764
+125,196
| +89% | +$482K |
|
309
AbCellera Biologics
ABCL
$1.27B
| $1.02M | ﹤0.01% |
100,491
+39,705
| +65% | +$402K |
|
310
Teucrium Corn Fund
CORN
$48.8M
| $1.01M | ﹤0.01% |
+37,676
| New | +$1.01M |
|
311
Coupang
CPNG
$57.4B
| $1.01M | ﹤0.01% |
+68,884
| New | +$1.01M |
|
312
BioNTech
BNTX
$24.7B
| $1M | ﹤0.01% |
6,683
+6,676
| +95,371% | +$1M |
|
|
RAM
313
DELISTED
Aries I Acquisition Corporation Class A Ordinary Share
RAM
| $1M | ﹤0.01% |
97,496
+14,350
| +17% | +$147K |
|
314
HP
HPQ
$27.4B
| $993K | ﹤0.01% |
36,977
+25,261
| +216% | +$678K |
|
|
WWE
315
DELISTED
World Wrestling Entertainment
WWE
| $992K | ﹤0.01% |
+14,480
| New | +$992K |
|
316
Louisiana-Pacific
LPX
$6.91B
| $989K | ﹤0.01% |
16,721
+10,816
| +183% | +$640K |
|
317
Premier
PINC
$2.24B
| $987K | ﹤0.01% |
28,230
+28,006
| +12,503% | +$979K |
|
318
Vipshop
VIPS
$8.58B
| $987K | ﹤0.01% |
+72,390
| New | +$987K |
|
319
United States Gasoline Fund
UGA
$77.4M
| $986K | ﹤0.01% |
+16,460
| New | +$986K |
|
320
uniQure
QURE
$956M
| $982K | ﹤0.01% |
43,355
+14,318
| +49% | +$324K |
|
321
Mattel
MAT
$5.96B
| $979K | ﹤0.01% |
54,927
+33,427
| +155% | +$596K |
|
|
GLOP
322
DELISTED
GASLOG PARTNERS LP
GLOP
| $976K | ﹤0.01% |
146,652
+68,748
| +88% | +$458K |
|
|
BRSL
323
Brightstar Lottery PLC
BRSL
$3.19B
| $975K | ﹤0.01% |
42,997
+27,871
| +184% | +$632K |
|
|
RCM
324
DELISTED
R1 RCM Inc. Common Stock
RCM
| $975K | ﹤0.01% |
89,068
+35,203
| +65% | +$385K |
|
325
Vistra
VST
$63.7B
| $970K | ﹤0.01% |
+41,816
| New | +$970K |
|