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
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1651
Galectin Therapeutics
GALT
$344M
| $23K | ﹤0.01% |
17,984
+8,194
| +84% | +$10.5K |
|
1652
Ironwood Pharmaceuticals
IRWD
$213M
| $23K | ﹤0.01% |
5,360
-3,467
| -39% | -$14.9K |
|
1653
Marcus & Millichap
MMI
$1.26B
| $23K | ﹤0.01% |
+622
| New | +$23K |
|
1654
Phreesia
PHR
$1.45B
| $23K | ﹤0.01% |
928
-2,160
| -70% | -$53.5K |
|
1655
Prelude Therapeutics
PRLD
$64M
| $23K | ﹤0.01% |
18,814
+9,482
| +102% | +$11.6K |
|
1656
Regional Management Corp
RM
$418M
| $23K | ﹤0.01% |
+694
| New | +$23K |
|
1657
T-REX 2X Long Tesla Daily Target ETF
TSLT
$478M
| $23K | ﹤0.01% |
+619
| New | +$23K |
|
1658
2x Long VIX Futures ETF
UVIX
$425M
| $23K | ﹤0.01% |
689
-12,875
| -95% | -$430K |
|
|
LUNA
1659
DELISTED
Luna Innovations Incorporated
LUNA
| $23K | ﹤0.01% |
+10,806
| New | +$23K |
|
1660
Ampco-Pittsburgh
AP
$53.6M
| $22K | ﹤0.01% |
10,920
-3,828
| -26% | -$7.71K |
|
1661
Invesco S&P 100 Equal Weight ETF
EQWL
$1.68B
| $22K | ﹤0.01% |
220
+144
| +189% | +$14.4K |
|
1662
Future Fuel
FF
$169M
| $22K | ﹤0.01% |
4,312
-2,762
| -39% | -$14.1K |
|
|
IMMP
1663
Immutep
IMMP
$241M
| $22K | ﹤0.01% |
+10,302
| New | +$22K |
|
1664
Lear
LEA
$5.62B
| $22K | ﹤0.01% |
+240
| New | +$22K |
|
1665
Odyssey Marine Exploration
OMEX
$80.9M
| $22K | ﹤0.01% |
31,522
-89,965
| -74% | -$62.8K |
|
1666
Playboy, Inc. Common Stock
PLBY
$173M
| $22K | ﹤0.01% |
15,140
-4,771
| -24% | -$6.93K |
|
1667
Palomar
PLMR
$3.13B
| $22K | ﹤0.01% |
212
-5,863
| -97% | -$608K |
|
1668
Viavi Solutions
VIAV
$2.69B
| $22K | ﹤0.01% |
2,253
-29,979
| -93% | -$293K |
|
1669
Worthington Steel
WS
$1.7B
| $22K | ﹤0.01% |
+702
| New | +$22K |
|
|
WW
1670
DELISTED
WW International
WW
| $22K | ﹤0.01% |
+17,502
| New | +$22K |
|
1671
Yext
YEXT
$1.07B
| $22K | ﹤0.01% |
+3,533
| New | +$22K |
|
|
MRX
1672
Marex Group
MRX
$2.43B
| $22K | ﹤0.01% |
+706
| New | +$22K |
|
1673
Commercial Metals
CMC
$6.47B
| $21K | ﹤0.01% |
+441
| New | +$21K |
|
1674
Collegium Pharmaceutical
COLL
$1.18B
| $21K | ﹤0.01% |
+765
| New | +$21K |
|
1675
Hagerty
HGTY
$1.24B
| $21K | ﹤0.01% |
2,240
-1,553
| -41% | -$14.6K |
|