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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1326
YieldMax TSLA Option Income Strategy ETF
TSLY
$1.26B
| $67K | ﹤0.01% |
4,164
-12,312
| -75% | -$198K |
|
1327
ADC Therapeutics
ADCT
$381M
| $66K | ﹤0.01% |
14,755
+13,576
| +1,151% | +$60.7K |
|
1328
Amprius Technologies
AMPX
$1.43B
| $66K | ﹤0.01% |
+25,093
| New | +$66K |
|
1329
Ameresco
AMRC
$1.65B
| $66K | ﹤0.01% |
2,762
-971
| -26% | -$23.2K |
|
1330
Pacira BioSciences
PCRX
$1.2B
| $66K | ﹤0.01% |
+2,281
| New | +$66K |
|
1331
Defiance Nasdaq 100 Enhanced Options Income ETF
QQQY
$189M
| $66K | ﹤0.01% |
1,333
-1,799
| -57% | -$89.1K |
|
1332
Direxion Daily Technology Bear 3x Shares
TECS
$48.7M
| $66K | ﹤0.01% |
+859
| New | +$66K |
|
1333
iShares 10-20 Year Treasury Bond ETF
TLH
$11.5B
| $66K | ﹤0.01% |
630
-189
| -23% | -$19.8K |
|
1334
Tenaris
TS
$18.3B
| $66K | ﹤0.01% |
+1,698
| New | +$66K |
|
1335
Frontier Group Holdings
ULCC
$1.2B
| $66K | ﹤0.01% |
8,251
-46,600
| -85% | -$373K |
|
1336
Honeywell
HON
$133B
| $65K | ﹤0.01% |
+318
| New | +$65K |
|
1337
IDEAYA Biosciences
IDYA
$2.3B
| $65K | ﹤0.01% |
+1,497
| New | +$65K |
|
1338
OptimizeRx
OPRX
$351M
| $65K | ﹤0.01% |
5,358
-13,173
| -71% | -$160K |
|
|
PARAA
1339
DELISTED
Paramount Global Class A
PARAA
| $65K | ﹤0.01% |
3,011
+2,732
| +979% | +$59K |
|
1340
Protagonist Therapeutics
PTGX
$3.87B
| $65K | ﹤0.01% |
2,250
-584
| -21% | -$16.9K |
|
1341
Vanguard S&P 500 Growth ETF
VOOG
$20.2B
| $65K | ﹤0.01% |
+215
| New | +$65K |
|
1342
Hamilton Lane
HLNE
$6.63B
| $64K | ﹤0.01% |
573
-730
| -56% | -$81.5K |
|
1343
Direxion Daily Consumer Discretionary Bull 3X Shares
WANT
$26.9M
| $64K | ﹤0.01% |
1,815
+452
| +33% | +$15.9K |
|
1344
Alamos Gold
AGI
$13.1B
| $63K | ﹤0.01% |
+4,280
| New | +$63K |
|
1345
Aris Water Solutions
ARIS
$792M
| $63K | ﹤0.01% |
4,509
+2,767
| +159% | +$38.7K |
|
1346
Great Southern Bancorp
GSBC
$731M
| $63K | ﹤0.01% |
1,154
+947
| +457% | +$51.7K |
|
1347
Newmark Group
NMRK
$3.46B
| $63K | ﹤0.01% |
5,759
-2,766
| -32% | -$30.3K |
|
1348
American Outdoor Brands
AOUT
$113M
| $62K | ﹤0.01% |
7,064
-7,187
| -50% | -$63.1K |
|
1349
La-Z-Boy
LZB
$1.41B
| $62K | ﹤0.01% |
1,659
-4,095
| -71% | -$153K |
|
|
SOL
1350
Emeren Group
SOL
$97.5M
| $62K | ﹤0.01% |
32,365
-24,093
| -43% | -$46.2K |
|