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 | |
|---|---|---|---|---|---|---|
|
SAGE
576
DELISTED
Sage Therapeutics
SAGE
| $352K | ﹤0.01% |
2,499
-1,156
| -32% | -$163K |
|
|
TGP
577
DELISTED
Teekay LNG Partners L.P.
TGP
| $352K | ﹤0.01% |
+21,115
| New | +$352K |
|
578
NIO
NIO
$12.8B
| $351K | ﹤0.01% |
+50,345
| New | +$351K |
|
579
Upbound Group
UPBD
$1.46B
| $351K | ﹤0.01% |
24,413
-59,460
| -71% | -$855K |
|
|
AJRD
580
DELISTED
Aerojet Rocketdyne Holdings, Inc.
AJRD
| $350K | ﹤0.01% |
10,300
+6,209
| +152% | +$211K |
|
581
Interactive Brokers
IBKR
$27.8B
| $349K | ﹤0.01% |
25,244
-19,432
| -43% | -$269K |
|
|
FNSR
582
DELISTED
Finisar Corp
FNSR
| $349K | ﹤0.01% |
18,351
-11,324
| -38% | -$215K |
|
583
Central Garden & Pet
CENT
$2.28B
| $347K | ﹤0.01% |
12,060
+10,619
| +737% | +$306K |
|
584
InterDigital
IDCC
$7.7B
| $347K | ﹤0.01% |
4,340
+2,088
| +93% | +$167K |
|
585
Murphy USA
MUSA
$7.26B
| $346K | ﹤0.01% |
+4,055
| New | +$346K |
|
|
LORL
586
DELISTED
Loral Space and Communications, Inc.
LORL
| $344K | ﹤0.01% |
+7,591
| New | +$344K |
|
|
UN
587
DELISTED
Unilever NV New York Registry Shares
UN
| $344K | ﹤0.01% |
+6,200
| New | +$344K |
|
588
Vanguard FTSE Emerging Markets ETF
VWO
$99B
| $343K | ﹤0.01% |
+8,385
| New | +$343K |
|
|
SUM
589
DELISTED
Summit Materials, Inc. Class A Common Stock
SUM
| $341K | ﹤0.01% |
19,079
-3,014
| -14% | -$53.9K |
|
590
Agios Pharmaceuticals
AGIO
$2.07B
| $340K | ﹤0.01% |
4,418
-20,260
| -82% | -$1.56M |
|
591
Johnson Controls International
JCI
$70.5B
| $340K | ﹤0.01% |
+9,742
| New | +$340K |
|
592
Methanex
MEOH
$2.98B
| $340K | ﹤0.01% |
+4,301
| New | +$340K |
|
593
Invesco S&P 500 Equal Weight ETF
RSP
$74.2B
| $340K | ﹤0.01% |
+3,187
| New | +$340K |
|
594
Sonoco
SON
$4.54B
| $339K | ﹤0.01% |
+6,122
| New | +$339K |
|
595
TTM Technologies
TTMI
$5.11B
| $338K | ﹤0.01% |
21,252
+21,158
| +22,509% | +$337K |
|
|
GOOS
596
Canada Goose Holdings
GOOS
$1.42B
| $337K | ﹤0.01% |
5,225
-22,442
| -81% | -$1.45M |
|
597
CONMED
CNMD
$1.63B
| $335K | ﹤0.01% |
4,237
+4,194
| +9,753% | +$332K |
|
|
PFPT
598
DELISTED
Proofpoint, Inc.
PFPT
| $333K | ﹤0.01% |
3,138
-1,979
| -39% | -$210K |
|
|
BKS
599
DELISTED
Barnes & Noble
BKS
| $332K | ﹤0.01% |
+57,292
| New | +$332K |
|
|
NBLX
600
DELISTED
Noble Midstream Partners LP
NBLX
| $329K | ﹤0.01% |
+9,295
| New | +$329K |
|