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 |
Amazon
AMZN
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ZGNX
326
DELISTED
Zogenix, Inc.
ZGNX
| $846K | ﹤0.01% |
+17,068
| New | +$846K |
|
327
Neurocrine Biosciences
NBIX
$14.3B
| $842K | ﹤0.01% |
6,853
-2,216
| -24% | -$272K |
|
|
VAR
328
DELISTED
Varian Medical Systems, Inc.
VAR
| $837K | ﹤0.01% |
7,478
-3,727
| -33% | -$417K |
|
|
HTZ
329
DELISTED
Hertz Global Holdings, Inc.
HTZ
| $828K | ﹤0.01% |
58,371
+18,868
| +48% | +$268K |
|
330
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$586M
| $825K | ﹤0.01% |
34,749
+29,902
| +617% | +$710K |
|
331
Molson Coors Class B
TAP
$9.86B
| $823K | ﹤0.01% |
+13,398
| New | +$823K |
|
332
News Corp Class A
NWSA
$16.9B
| $822K | ﹤0.01% |
62,388
+61,578
| +7,602% | +$811K |
|
333
Franco-Nevada
FNV
$38B
| $818K | ﹤0.01% |
+13,081
| New | +$818K |
|
334
Aldeyra Therapeutics
ALDX
$342M
| $810K | ﹤0.01% |
58,745
+55,767
| +1,873% | +$769K |
|
335
Ionis Pharmaceuticals
IONS
$9.72B
| $809K | ﹤0.01% |
15,689
+10,674
| +213% | +$550K |
|
336
International Paper
IP
$25B
| $809K | ﹤0.01% |
+17,400
| New | +$809K |
|
337
Ralph Lauren
RL
$18.7B
| $795K | ﹤0.01% |
5,781
-2,362
| -29% | -$325K |
|
338
RPM International
RPM
$16.4B
| $793K | ﹤0.01% |
+12,216
| New | +$793K |
|
339
Ovintiv
OVV
$10.6B
| $784K | ﹤0.01% |
11,975
+11,544
| +2,678% | +$756K |
|
340
Star Bulk Carriers
SBLK
$2.22B
| $774K | ﹤0.01% |
53,607
+46,269
| +631% | +$668K |
|
341
United Therapeutics
UTHR
$17.8B
| $770K | ﹤0.01% |
6,027
-28
| -0.5% | -$3.58K |
|
342
AB InBev
BUD
$116B
| $768K | ﹤0.01% |
+8,781
| New | +$768K |
|
343
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$12.2B
| $766K | ﹤0.01% |
+74,325
| New | +$766K |
|
|
PVG
344
DELISTED
PRETIUM RESOURCES INC.
PVG
| $765K | ﹤0.01% |
100,552
+33,936
| +51% | +$258K |
|
345
Unilever
UL
$157B
| $759K | ﹤0.01% |
+13,813
| New | +$759K |
|
346
Dana Inc
DAN
$2.7B
| $758K | ﹤0.01% |
40,628
+24,387
| +150% | +$455K |
|
|
CASA
347
DELISTED
Casa Systems, Inc. Common Stock
CASA
| $755K | ﹤0.01% |
+51,241
| New | +$755K |
|
|
WRD
348
DELISTED
WildHorse Resource Development
WRD
| $750K | ﹤0.01% |
31,729
+24,899
| +365% | +$589K |
|
349
Sturm, Ruger & Co
RGR
$576M
| $747K | ﹤0.01% |
10,831
+10,590
| +4,394% | +$730K |
|
350
Camping World
CWH
$1.11B
| $745K | ﹤0.01% |
34,988
-14,130
| -29% | -$301K |
|