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 |
Apple
AAPL
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
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 | |
|---|---|---|---|---|---|---|
351
GraniteShares 2x Long COIN Daily ETF
CONL
$716M
| $1.47M | ﹤0.01% |
41,634
+32,639
| +363% | +$1.15M |
|
352
GameStop
GME
$10.1B
| $1.46M | ﹤0.01% |
+46,687
| New | +$1.46M |
|
353
Altria Group
MO
$112B
| $1.46M | ﹤0.01% |
+27,915
| New | +$1.46M |
|
354
First Majestic Silver
AG
$4.47B
| $1.44M | ﹤0.01% |
263,192
+96,518
| +58% | +$530K |
|
355
Morgan Stanley
MS
$236B
| $1.44M | ﹤0.01% |
+11,472
| New | +$1.44M |
|
356
Teladoc Health
TDOC
$1.38B
| $1.44M | ﹤0.01% |
158,080
+83,024
| +111% | +$754K |
|
357
GSK
GSK
$81.6B
| $1.42M | ﹤0.01% |
+42,113
| New | +$1.42M |
|
358
Scholar Rock
SRRK
$3.02B
| $1.42M | ﹤0.01% |
+32,955
| New | +$1.42M |
|
359
Veralto
VLTO
$26.2B
| $1.41M | ﹤0.01% |
+13,869
| New | +$1.41M |
|
360
Victoria's Secret
VSCO
$2.1B
| $1.41M | ﹤0.01% |
33,963
-125,627
| -79% | -$5.2M |
|
361
Applied Optoelectronics
AAOI
$1.5B
| $1.4M | ﹤0.01% |
38,084
-18,042
| -32% | -$665K |
|
|
362
Boeing
BA
$174B
| $1.4M | ﹤0.01% |
7,914
-317,414
| -98% | -$56.2M |
|
363
uniQure
QURE
$985M
| $1.37M | ﹤0.01% |
77,639
+36,647
| +89% | +$647K |
|
364
RTX Corp
RTX
$211B
| $1.34M | ﹤0.01% |
+11,594
| New | +$1.34M |
|
365
Edgewise Therapeutics
EWTX
$1.64B
| $1.34M | ﹤0.01% |
50,130
-23,900
| -32% | -$638K |
|
366
Hologic
HOLX
$14.8B
| $1.33M | ﹤0.01% |
18,382
+6,153
| +50% | +$444K |
|
367
iShares 3-7 Year Treasury Bond ETF
IEI
$16.8B
| $1.33M | ﹤0.01% |
11,471
+6,181
| +117% | +$714K |
|
368
Synovus
SNV
$7.15B
| $1.31M | ﹤0.01% |
25,543
-31,383
| -55% | -$1.61M |
|
369
Altimmune
ALT
$334M
| $1.31M | ﹤0.01% |
181,172
+48,007
| +36% | +$346K |
|
370
ProShares UltraShort QQQ
QID
$273M
| $1.31M | ﹤0.01% |
39,936
+25,636
| +179% | +$838K |
|
|
QXO
371
QXO Inc
QXO
$14.9B
| $1.3M | ﹤0.01% |
81,710
+56,617
| +226% | +$900K |
|
372
Phillips 66
PSX
$53.2B
| $1.3M | ﹤0.01% |
+11,399
| New | +$1.3M |
|
373
Ferrari
RACE
$87.1B
| $1.3M | ﹤0.01% |
+3,057
| New | +$1.3M |
|
|
GTM
374
ZoomInfo Technologies
GTM
$3.26B
| $1.3M | ﹤0.01% |
123,498
-50,383
| -29% | -$529K |
|
375
Praxis Precision Medicines
PRAX
$986M
| $1.3M | ﹤0.01% |
16,854
+4,436
| +36% | +$341K |
|