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 | |
|---|---|---|---|---|---|---|
1426
iShares MSCI EAFE Min Vol Factor ETF
EFAV
$5.41B
| $42K | ﹤0.01% |
619
+363
| +142% | +$24.6K |
|
1427
Empire State Realty Trust
ESRT
$1.3B
| $42K | ﹤0.01% |
4,338
+1,346
| +45% | +$13K |
|
1428
Kamada
KMDA
$400M
| $42K | ﹤0.01% |
+7,005
| New | +$42K |
|
1429
Legend Biotech
LEGN
$6.49B
| $42K | ﹤0.01% |
+704
| New | +$42K |
|
1430
Merit Medical Systems
MMSI
$4.98B
| $42K | ﹤0.01% |
560
+93
| +20% | +$6.98K |
|
|
ONL
1431
Orion Office REIT
ONL
$157M
| $42K | ﹤0.01% |
7,471
+7,390
| +9,123% | +$41.5K |
|
1432
Alamo Group
ALG
$2.47B
| $41K | ﹤0.01% |
+197
| New | +$41K |
|
1433
Atea Pharmaceuticals
AVIR
$236M
| $41K | ﹤0.01% |
13,458
+11,264
| +513% | +$34.3K |
|
1434
Breakwave Dry Bulk Shipping ETF
BDRY
$52.9M
| $41K | ﹤0.01% |
3,556
-25,965
| -88% | -$299K |
|
1435
Fortune Brands Innovations
FBIN
$6.9B
| $41K | ﹤0.01% |
+546
| New | +$41K |
|
1436
Stoke Therapeutics
STOK
$1.29B
| $41K | ﹤0.01% |
7,979
+5,298
| +198% | +$27.2K |
|
1437
Ardagh Metal Packaging
AMBP
$2.25B
| $40K | ﹤0.01% |
10,560
-12,228
| -54% | -$46.3K |
|
1438
Hyliion Holdings
HYLN
$349M
| $40K | ﹤0.01% |
49,301
+37,157
| +306% | +$30.1K |
|
|
MITT
1439
AG Mortgage Investment Trust
MITT
$249M
| $40K | ﹤0.01% |
6,317
-21,703
| -77% | -$137K |
|
1440
Global X MLP ETF
MLPA
$1.85B
| $40K | ﹤0.01% |
915
+411
| +82% | +$18K |
|
1441
QuinStreet
QNST
$982M
| $40K | ﹤0.01% |
3,191
+2,216
| +227% | +$27.8K |
|
1442
Scholar Rock
SRRK
$3.12B
| $40K | ﹤0.01% |
+2,132
| New | +$40K |
|
1443
Blue Bird Corp
BLBD
$1.91B
| $39K | ﹤0.01% |
+1,460
| New | +$39K |
|
1444
GrowGeneration
GRWG
$103M
| $39K | ﹤0.01% |
+15,795
| New | +$39K |
|
1445
Hanmi Financial
HAFC
$771M
| $39K | ﹤0.01% |
2,034
+1,899
| +1,407% | +$36.4K |
|
|
IRS
1446
IRSA Inversiones y Representaciones
IRS
$878M
| $39K | ﹤0.01% |
4,775
+3,599
| +306% | +$29.4K |
|
1447
OrthoPediatrics
KIDS
$504M
| $39K | ﹤0.01% |
+1,226
| New | +$39K |
|
1448
Lands' End
LE
$481M
| $39K | ﹤0.01% |
+4,096
| New | +$39K |
|
1449
Mesa Air Group
MESA
$58.6M
| $39K | ﹤0.01% |
38,806
+7,358
| +23% | +$7.4K |
|
1450
Palomar
PLMR
$3.15B
| $39K | ﹤0.01% |
719
-621
| -46% | -$33.7K |
|