Simplex Trading

Simplex Trading Portfolio holdings

AUM $3.72B
1-Year Return 0.6%
 

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.

This Quarter Return
+0.1%
1 Year Return
+0.6%
3 Year Return
+1.23%
5 Year Return
+2.7%
10 Year Return
+32.99%
AUM
$3.55B
AUM Growth
+$583M
Cap. Flow
+$629M
Cap. Flow %
17.73%
Top 10 Hldgs %
31.05%
Holding
4,446
New
949
Increased
764
Reduced
722
Closed
799

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
INDV icon
1351
Indivior
INDV
$2.98B
$58K ﹤0.01%
+4,703
New +$58K
JETS icon
1352
US Global Jets ETF
JETS
$834M
$58K ﹤0.01%
+2,325
New +$58K
LGND icon
1353
Ligand Pharmaceuticals
LGND
$3.26B
$58K ﹤0.01%
+542
New +$58K
OLMA icon
1354
Olema Pharmaceuticals
OLMA
$549M
$58K ﹤0.01%
+10,075
New +$58K
OXM icon
1355
Oxford Industries
OXM
$770M
$58K ﹤0.01%
+748
New +$58K
PAGS icon
1356
PagSeguro Digital
PAGS
$2.77B
$58K ﹤0.01%
+9,277
New +$58K
SMIN icon
1357
iShares MSCI India Small-Cap ETF
SMIN
$926M
$58K ﹤0.01%
+760
New +$58K
TEN
1358
Tsakos Energy Navigation Ltd.
TEN
$660M
$58K ﹤0.01%
3,388
-27,854
-89% -$477K
CMRC
1359
Commerce.com, Inc. Series 1 Common Stock
CMRC
$376M
$57K ﹤0.01%
9,384
-9,327
-50% -$56.7K
PX icon
1360
P10
PX
$1.36B
$57K ﹤0.01%
4,577
-5,010
-52% -$62.4K
SPHR icon
1361
Sphere Entertainment
SPHR
$2.05B
$57K ﹤0.01%
1,427
-11,263
-89% -$450K
TWI icon
1362
Titan International
TWI
$558M
$57K ﹤0.01%
+8,521
New +$57K
VYGR icon
1363
Voyager Therapeutics
VYGR
$243M
$57K ﹤0.01%
10,074
+7,170
+247% +$40.6K
OGS icon
1364
ONE Gas
OGS
$4.56B
$56K ﹤0.01%
814
+393
+93% +$27K
REE icon
1365
REE Automotive
REE
$20.4M
$56K ﹤0.01%
6,413
+5,008
+356% +$43.7K
XYLD icon
1366
Global X S&P 500 Covered Call ETF
XYLD
$3.11B
$56K ﹤0.01%
+1,353
New +$56K
BIZD icon
1367
VanEck BDC Income ETF
BIZD
$1.68B
$55K ﹤0.01%
3,352
-3,016
-47% -$49.5K
BLD icon
1368
TopBuild
BLD
$12B
$55K ﹤0.01%
178
-93
-34% -$28.7K
ING icon
1369
ING
ING
$73.9B
$55K ﹤0.01%
+3,521
New +$55K
VERX icon
1370
Vertex
VERX
$3.88B
$55K ﹤0.01%
1,036
+989
+2,104% +$52.5K
FIAT
1371
YieldMax Short COIN Option Income Strategy ETF
FIAT
$38.5M
$55K ﹤0.01%
5,931
+5,006
+541% +$46.4K
AVDV icon
1372
Avantis International Small Cap Value ETF
AVDV
$12.1B
$54K ﹤0.01%
+835
New +$54K
FNGR icon
1373
FingerMotion
FNGR
$100M
$54K ﹤0.01%
45,680
+26,164
+134% +$30.9K
MKFG
1374
DELISTED
Markforged Holding Corporation
MKFG
$54K ﹤0.01%
17,404
+11,933
+218% +$37K
AMPS
1375
DELISTED
Altus Power, Inc.
AMPS
$54K ﹤0.01%
13,410
+296
+2% +$1.19K