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 |
NVIDIA
NVDA
|
+$29.3M |
| 2 |
Industrial Select Sector SPDR Fund
XLI
|
+$23.1M |
| 3 |
iShares Russell 2000 ETF
IWM
|
+$18M |
| 4 |
Netflix
NFLX
|
+$17.4M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$14M |
Top Sells
| 1 |
Invesco QQQ Trust
QQQ
|
+$120M |
| 2 |
SPDR S&P 500 ETF Trust
SPY
|
+$41.3M |
| 3 |
Walt Disney
DIS
|
+$26.9M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
+$13.8M |
| 5 |
Johnson & Johnson
JNJ
|
+$11.3M |
Sector Composition
| 1 | Technology | 16.22% |
| 2 | Communication Services | 16.19% |
| 3 | Healthcare | 11.36% |
| 4 | Industrials | 9.74% |
| 5 | Consumer Discretionary | 8.61% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
976
Lazard
LAZ
$5.25B
| $68K | ﹤0.01% |
1,994
-6,275
| -76% | -$214K |
|
977
PRA Group
PRAA
$657M
| $68K | ﹤0.01% |
2,427
+1,237
| +104% | +$34.7K |
|
978
CVR Energy
CVI
$3.13B
| $67K | ﹤0.01% |
1,343
-1,355
| -50% | -$67.6K |
|
|
EVRI
979
DELISTED
Everi Holdings
EVRI
| $67K | ﹤0.01% |
+5,636
| New | +$67K |
|
|
QADA
980
DELISTED
QAD Inc.
QADA
| $67K | ﹤0.01% |
+1,686
| New | +$67K |
|
981
Digital Turbine
APPS
$501M
| $66K | ﹤0.01% |
13,214
-118,152
| -90% | -$590K |
|
982
Parsons
PSN
$8.18B
| $66K | ﹤0.01% |
+1,815
| New | +$66K |
|
|
NPTN
983
DELISTED
NEOPHOTONICS CORP
NPTN
| $66K | ﹤0.01% |
15,994
-51,632
| -76% | -$213K |
|
|
TNAV
984
DELISTED
Telenav Inc.
TNAV
| $66K | ﹤0.01% |
8,370
+5,354
| +178% | +$42.2K |
|
985
SEI Investments
SEIC
$10.7B
| $65K | ﹤0.01% |
+1,161
| New | +$65K |
|
|
TEN
986
Tsakos Energy Navigation Ltd.
TEN
$672M
| $65K | ﹤0.01% |
4,007
+3,892
| +3,384% | +$63.1K |
|
|
VCRA
987
DELISTED
VOCERA COMMUNICATIONS, INC.
VCRA
| $65K | ﹤0.01% |
2,065
-847
| -29% | -$26.7K |
|
988
Camping World
CWH
$1.04B
| $64K | ﹤0.01% |
5,186
-1,907
| -27% | -$23.5K |
|
989
Fidelity National Financial
FNF
$16.4B
| $64K | ﹤0.01% |
+1,660
| New | +$64K |
|
990
Gates Industrial
GTES
$6.6B
| $64K | ﹤0.01% |
+5,628
| New | +$64K |
|
991
Kodak
KODK
$486M
| $64K | ﹤0.01% |
26,748
+9,943
| +59% | +$23.8K |
|
992
OneSpan
OSPN
$588M
| $64K | ﹤0.01% |
4,547
-6,922
| -60% | -$97.4K |
|
|
BCLI
993
DELISTED
BRAINSTORM CELL THERAPUTC
BCLI
| $63K | ﹤0.01% |
1,065
+766
| +256% | +$45.3K |
|
994
Cedar Fair
FUN
$2.38B
| $63K | ﹤0.01% |
1,337
+599
| +81% | +$28.2K |
|
995
LCI Industries
LCII
$2.43B
| $63K | ﹤0.01% |
+700
| New | +$63K |
|
996
Q2 Holdings
QTWO
$5.13B
| $63K | ﹤0.01% |
826
-414
| -33% | -$31.6K |
|
997
Silicon Motion
SIMO
$3.02B
| $63K | ﹤0.01% |
+1,438
| New | +$63K |
|
998
Theravance Biopharma
TBPH
$720M
| $63K | ﹤0.01% |
3,871
+3,865
| +64,417% | +$62.9K |
|
|
TCS
999
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
| $63K | ﹤0.01% |
577
+139
| +32% | +$15.2K |
|
1000
SpartanNash
SPTN
$897M
| $62K | ﹤0.01% |
+5,319
| New | +$62K |
|