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 | |
|---|---|---|---|---|---|---|
501
NETGEAR
NTGR
$811M
| $854K | ﹤0.01% |
+30,677
| New | +$854K |
|
502
Denison Mines
DNN
$2.11B
| $852K | ﹤0.01% |
473,527
-125,745
| -21% | -$226K |
|
|
AMED
503
DELISTED
Amedisys
AMED
| $848K | ﹤0.01% |
9,350
-1,195
| -11% | -$108K |
|
504
Shoe Carnival
SCVL
$673M
| $846K | ﹤0.01% |
25,592
+25,584
| +319,800% | +$846K |
|
505
Byrna Technologies
BYRN
$445M
| $843K | ﹤0.01% |
29,266
+14,374
| +97% | +$414K |
|
506
Genesis Energy
GEL
$2.03B
| $843K | ﹤0.01% |
83,403
+56,814
| +214% | +$574K |
|
507
Centrus Energy
LEU
$3.74B
| $832K | ﹤0.01% |
12,503
+4,142
| +50% | +$276K |
|
508
Conagra Brands
CAG
$9.23B
| $830K | ﹤0.01% |
29,925
+16,413
| +121% | +$455K |
|
509
Evolent Health
EVH
$1.11B
| $828K | ﹤0.01% |
+73,680
| New | +$828K |
|
510
Quantum-Si Incorporated
QSI
$219M
| $828K | ﹤0.01% |
306,769
+280,270
| +1,058% | +$756K |
|
511
BlackSky Technology
BKSY
$575M
| $826K | ﹤0.01% |
76,619
+63,143
| +469% | +$681K |
|
512
Liberty Energy
LBRT
$1.7B
| $820K | ﹤0.01% |
+41,253
| New | +$820K |
|
513
YieldMax Ultra Option Income Strategy ETF
ULTY
$3.04B
| $820K | ﹤0.01% |
91,417
+57,564
| +170% | +$516K |
|
514
Thermo Fisher Scientific
TMO
$186B
| $807K | ﹤0.01% |
+1,553
| New | +$807K |
|
515
Owens Corning
OC
$13B
| $806K | ﹤0.01% |
4,733
+1,692
| +56% | +$288K |
|
516
WESCO International
WCC
$10.7B
| $804K | ﹤0.01% |
+4,443
| New | +$804K |
|
517
UGI
UGI
$7.43B
| $803K | ﹤0.01% |
28,479
-3,076
| -10% | -$86.7K |
|
518
Ventas
VTR
$30.9B
| $800K | ﹤0.01% |
13,601
-28,194
| -67% | -$1.66M |
|
519
Invesco S&P 500 Low Volatility ETF
SPLV
$7.99B
| $799K | ﹤0.01% |
+11,426
| New | +$799K |
|
520
Ocular Therapeutix
OCUL
$2.37B
| $798K | ﹤0.01% |
93,473
+84,431
| +934% | +$721K |
|
521
Douglas Emmett
DEI
$2.83B
| $796K | ﹤0.01% |
42,925
+8,529
| +25% | +$158K |
|
522
Archer Aviation
ACHR
$5.48B
| $794K | ﹤0.01% |
+81,508
| New | +$794K |
|
523
Dana Inc
DAN
$2.7B
| $793K | ﹤0.01% |
+68,654
| New | +$793K |
|
524
Blue Owl Capital
OBDC
$7.33B
| $788K | ﹤0.01% |
52,152
-6,998
| -12% | -$106K |
|
525
Teekay
TK
$718M
| $785K | ﹤0.01% |
113,360
+18,510
| +20% | +$128K |
|