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 |
AMC Entertainment Holdings
AMC
|
$84.2M |
| 2 |
NVIDIA
NVDA
|
$35.3M |
| 3 |
AT&T
T
|
$28.5M |
| 4 |
Micron Technology
MU
|
$23.1M |
| 5 |
Baidu
BIDU
|
$22.7M |
Top Sells
| 1 |
Palantir
PLTR
|
$29.3M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$26.2M |
| 3 |
PARA
Paramount Global Class B
PARA
|
$21.7M |
| 4 |
Exxon Mobil
XOM
|
$18M |
| 5 |
Lam Research
LRCX
|
$16.3M |
Sector Composition
| 1 | Technology | 17.69% |
| 2 | Consumer Discretionary | 14.79% |
| 3 | Communication Services | 10.15% |
| 4 | Healthcare | 9.69% |
| 5 | Financials | 9.42% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
276
UiPath
PATH
$5.81B
| $2.16M | ﹤0.01% |
+31,821
| New | +$2.16M |
|
277
Pacific Biosciences
PACB
$372M
| $2.15M | ﹤0.01% |
61,415
+17,357
| +39% | +$607K |
|
278
Oneok
OKE
$46.8B
| $2.14M | ﹤0.01% |
+38,542
| New | +$2.14M |
|
279
Campbell Soup
CPB
$9.74B
| $2.14M | ﹤0.01% |
47,026
+28,780
| +158% | +$1.31M |
|
280
Pfizer
PFE
$140B
| $2.13M | ﹤0.01% |
54,346
-410,282
| -88% | -$16.1M |
|
281
Teradyne
TER
$19B
| $2.13M | ﹤0.01% |
15,883
+12,244
| +336% | +$1.64M |
|
282
Fifth Third Bancorp
FITB
$30.6B
| $2.12M | ﹤0.01% |
55,501
+3,872
| +7% | +$148K |
|
283
Direxion Daily Financial Bull 3x Shares
FAS
$2.74B
| $2.12M | ﹤0.01% |
19,362
-16,607
| -46% | -$1.81M |
|
284
Carvana
CVNA
$51.1B
| $2.11M | ﹤0.01% |
6,975
-11,329
| -62% | -$3.42M |
|
285
Bank of New York Mellon
BK
$74.4B
| $2.09M | ﹤0.01% |
40,812
+28,658
| +236% | +$1.47M |
|
286
Enphase Energy
ENPH
$4.78B
| $2.08M | ﹤0.01% |
11,307
-25,132
| -69% | -$4.61M |
|
287
Clover Health Investments
CLOV
$1.38B
| $2.08M | ﹤0.01% |
155,798
+115,414
| +286% | +$1.54M |
|
288
Suncor Energy
SU
$48.7B
| $2.07M | ﹤0.01% |
86,298
-7,782
| -8% | -$186K |
|
289
Halliburton
HAL
$19.2B
| $2.06M | ﹤0.01% |
89,283
-2,241
| -2% | -$51.8K |
|
290
Under Armour
UAA
$2.26B
| $2.06M | ﹤0.01% |
+97,511
| New | +$2.06M |
|
291
XPO
XPO
$15.4B
| $2.05M | ﹤0.01% |
42,368
-4,843
| -10% | -$234K |
|
292
Trip.com Group
TCOM
$47.7B
| $2.05M | ﹤0.01% |
57,730
+26,519
| +85% | +$940K |
|
293
Playboy, Inc. Common Stock
PLBY
$180M
| $2.04M | ﹤0.01% |
52,468
+9,758
| +23% | +$379K |
|
|
TEN
294
DELISTED
Tenneco Inc. Class A Voting Common Stock
TEN
| $2.04M | ﹤0.01% |
105,527
+40,597
| +63% | +$784K |
|
295
UWM Holdings
UWMC
$1.29B
| $2.02M | ﹤0.01% |
239,196
+91,124
| +62% | +$770K |
|
296
Rio Tinto
RIO
$101B
| $2.02M | ﹤0.01% |
+24,060
| New | +$2.02M |
|
297
Vanguard FTSE Europe ETF
VGK
$26.7B
| $2.02M | ﹤0.01% |
29,959
-14,173
| -32% | -$953K |
|
298
The SPAC and New Issue ETF
SPCX
$9.22M
| $2.01M | ﹤0.01% |
68,988
+15,540
| +29% | +$453K |
|
299
Hartford Financial Services
HIG
$37.9B
| $2.01M | ﹤0.01% |
+32,389
| New | +$2.01M |
|
300
DXC Technology
DXC
$2.6B
| $2M | ﹤0.01% |
51,334
+40,260
| +364% | +$1.57M |
|