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 | |
|---|---|---|---|---|---|---|
951
Burford Capital
BUR
$2.73B
| $198K | ﹤0.01% |
15,538
-16,627
| -52% | -$212K |
|
952
WisdomTree Japan Hedged Equity Fund
DXJ
$3.81B
| $198K | ﹤0.01% |
1,797
-23,317
| -93% | -$2.57M |
|
953
Ecolab
ECL
$76.3B
| $198K | ﹤0.01% |
+848
| New | +$198K |
|
954
Garrett Motion
GTX
$2.66B
| $198K | ﹤0.01% |
21,961
+21,157
| +2,631% | +$191K |
|
|
TE
955
T1 Energy Inc.
TE
$292M
| $198K | ﹤0.01% |
+76,875
| New | +$198K |
|
956
Sangamo Therapeutics
SGMO
$160M
| $196K | ﹤0.01% |
192,538
+77,802
| +68% | +$79.2K |
|
957
Natural Resource Partners
NRP
$1.35B
| $195K | ﹤0.01% |
+1,763
| New | +$195K |
|
958
Relay Therapeutics
RLAY
$700M
| $195K | ﹤0.01% |
47,462
+27,036
| +132% | +$111K |
|
959
Direxion Daily Technology Bull 3x Shares
TECL
$3.76B
| $195K | ﹤0.01% |
+2,162
| New | +$195K |
|
960
Verisk Analytics
VRSK
$36.7B
| $195K | ﹤0.01% |
711
-4,997
| -88% | -$1.37M |
|
961
Ero Copper
ERO
$1.68B
| $194K | ﹤0.01% |
+14,424
| New | +$194K |
|
962
Acadia Pharmaceuticals
ACAD
$4.02B
| $193K | ﹤0.01% |
+10,543
| New | +$193K |
|
963
Neogen
NEOG
$1.21B
| $193K | ﹤0.01% |
15,946
+12,118
| +317% | +$147K |
|
964
Dayforce
DAY
$10.9B
| $193K | ﹤0.01% |
+2,667
| New | +$193K |
|
965
Global X MSCI Argentina ETF
ARGT
$770M
| $192K | ﹤0.01% |
2,324
+2,285
| +5,859% | +$189K |
|
966
MarineMax
HZO
$545M
| $192K | ﹤0.01% |
6,644
-487
| -7% | -$14.1K |
|
967
Lamar Advertising Co
LAMR
$12.8B
| $192K | ﹤0.01% |
+1,582
| New | +$192K |
|
|
MREO
968
Mereo BioPharma
MREO
$283M
| $192K | ﹤0.01% |
55,099
+21,244
| +63% | +$74K |
|
969
Gran Tierra Energy
GTE
$143M
| $191K | ﹤0.01% |
26,482
+20,211
| +322% | +$146K |
|
|
LOMA
970
Loma Negra
LOMA
$939M
| $191K | ﹤0.01% |
+16,014
| New | +$191K |
|
|
LX
971
LexinFintech Holdings
LX
$973M
| $191K | ﹤0.01% |
33,002
+27,677
| +520% | +$160K |
|
972
Amplify Cybersecurity ETF
HACK
$2.32B
| $190K | ﹤0.01% |
+2,551
| New | +$190K |
|
973
Armstrong World Industries
AWI
$8.47B
| $190K | ﹤0.01% |
+1,351
| New | +$190K |
|
974
ASE Group
ASX
$24.6B
| $189K | ﹤0.01% |
18,773
+2,667
| +17% | +$26.9K |
|
|
DRD
975
DRDGold
DRD
$1.97B
| $189K | ﹤0.01% |
21,997
-5,795
| -21% | -$49.8K |
|