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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
MYOV
451
DELISTED
Myovant Sciences Ltd.
MYOV
| $645K | ﹤0.01% |
45,934
+31,871
| +227% | +$448K |
|
452
Neurocrine Biosciences
NBIX
$14.1B
| $643K | ﹤0.01% |
6,691
+6,690
| +669,000% | +$643K |
|
453
American Tower
AMT
$91B
| $638K | ﹤0.01% |
2,642
+2,577
| +3,965% | +$622K |
|
|
DRNA
454
DELISTED
Dicerna Pharmaceuticals, Inc.
DRNA
| $636K | ﹤0.01% |
+35,356
| New | +$636K |
|
455
Lattice Semiconductor
LSCC
$9.12B
| $634K | ﹤0.01% |
21,896
+19,185
| +708% | +$556K |
|
|
LFC
456
DELISTED
China Life Insurance Company Ltd.
LFC
| $634K | ﹤0.01% |
56,045
+42,244
| +306% | +$478K |
|
457
Direxion Daily MSCI India Bull 2X Shares
INDL
$68.1M
| $632K | ﹤0.01% |
20,084
-40,635
| -67% | -$1.28M |
|
458
Nokia
NOK
$24.6B
| $629K | ﹤0.01% |
160,908
-5,128
| -3% | -$20K |
|
459
Spirit AeroSystems
SPR
$4.75B
| $629K | ﹤0.01% |
33,286
+11,156
| +50% | +$211K |
|
460
Douglas Emmett
DEI
$2.75B
| $626K | ﹤0.01% |
+24,944
| New | +$626K |
|
461
Eventbrite
EB
$262M
| $622K | ﹤0.01% |
+57,358
| New | +$622K |
|
462
Citi Trends
CTRN
$292M
| $619K | ﹤0.01% |
24,791
+10,604
| +75% | +$265K |
|
463
PotlatchDeltic
PCH
$3.22B
| $617K | ﹤0.01% |
+14,661
| New | +$617K |
|
464
Invesco Senior Loan ETF
BKLN
$6.88B
| $611K | ﹤0.01% |
+28,127
| New | +$611K |
|
465
ABM Industries
ABM
$2.79B
| $607K | ﹤0.01% |
16,584
+16,484
| +16,484% | +$603K |
|
466
iShares US Technology ETF
IYW
$23.9B
| $605K | ﹤0.01% |
8,040
+6,032
| +300% | +$454K |
|
467
Synaptics
SYNA
$2.67B
| $602K | ﹤0.01% |
7,486
+7,144
| +2,089% | +$574K |
|
468
Moody's
MCO
$91B
| $592K | ﹤0.01% |
2,045
-2,268
| -53% | -$657K |
|
|
EGIO
469
DELISTED
Edgio, Inc. Common Stock
EGIO
| $592K | ﹤0.01% |
2,570
+1,843
| +254% | +$425K |
|
470
Microsoft
MSFT
$3.72T
| $591K | ﹤0.01% |
2,812
-161,536
| -98% | -$34M |
|
471
Huntington Bancshares
HBAN
$25.9B
| $584K | ﹤0.01% |
63,740
+43,182
| +210% | +$396K |
|
|
JO
472
DELISTED
iPath Series B Bloomberg Coffee Subindex Total ReturnSM ETN
JO
| $579K | ﹤0.01% |
17,286
+15,097
| +690% | +$506K |
|
473
Huazhu Hotels Group
HTHT
$11.3B
| $578K | ﹤0.01% |
13,368
-9,621
| -42% | -$416K |
|
474
iShares MSCI Italy ETF
EWI
$718M
| $577K | ﹤0.01% |
+23,669
| New | +$577K |
|
|
AVYA
475
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $577K | ﹤0.01% |
37,996
-8,790
| -19% | -$133K |
|