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 |
NVIDIA
NVDA
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
551
Funko
FNKO
$182M
| $604K | ﹤0.01% |
127,053
+125,857
| +10,523% | +$598K |
|
552
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$3.43B
| $604K | ﹤0.01% |
+22,502
| New | +$604K |
|
553
EchoStar
SATS
$24B
| $603K | ﹤0.01% |
21,791
-8,435
| -28% | -$233K |
|
|
SVM
554
Silvercorp Metals
SVM
$1.07B
| $601K | ﹤0.01% |
142,602
+91,622
| +180% | +$386K |
|
555
Direxion Daily Regional Banks Bull 3X Shares
DPST
$727M
| $597K | ﹤0.01% |
6,887
+1,616
| +31% | +$140K |
|
556
TE Connectivity
TEL
$61.7B
| $590K | ﹤0.01% |
3,500
-8,615
| -71% | -$1.45M |
|
557
Millicom
TIGO
$7.99B
| $590K | ﹤0.01% |
15,772
+14,851
| +1,612% | +$556K |
|
558
PureCycle Technologies
PCT
$2.43B
| $588K | ﹤0.01% |
+42,922
| New | +$588K |
|
559
Ryder
R
$7.57B
| $588K | ﹤0.01% |
3,704
+3,589
| +3,121% | +$570K |
|
560
Goldman Sachs Physical Gold ETF Shares
AAAU
$1.76B
| $587K | ﹤0.01% |
17,974
+9,804
| +120% | +$320K |
|
561
United States Natural Gas Fund
UNG
$615M
| $586K | ﹤0.01% |
+38,361
| New | +$586K |
|
562
Frontline
FRO
$5.01B
| $583K | ﹤0.01% |
35,536
-77,398
| -69% | -$1.27M |
|
563
American Axle
AXL
$711M
| $579K | ﹤0.01% |
141,975
+140,107
| +7,500% | +$571K |
|
564
Celldex Therapeutics
CLDX
$1.61B
| $575K | ﹤0.01% |
28,271
+26,233
| +1,287% | +$534K |
|
565
Omega Healthcare
OHI
$12.6B
| $574K | ﹤0.01% |
15,678
+11,846
| +309% | +$434K |
|
566
Vipshop
VIPS
$8.72B
| $573K | ﹤0.01% |
38,122
+13,703
| +56% | +$206K |
|
567
Dow Inc
DOW
$17.1B
| $571K | ﹤0.01% |
+21,449
| New | +$571K |
|
568
Ocular Therapeutix
OCUL
$2.22B
| $571K | ﹤0.01% |
61,578
+11,616
| +23% | +$108K |
|
569
Amneal Pharmaceuticals
AMRX
$3.11B
| $570K | ﹤0.01% |
70,527
+1,978
| +3% | +$16K |
|
570
MindMed
MNMD
$743M
| $570K | ﹤0.01% |
87,951
+40,095
| +84% | +$260K |
|
571
Cogent Biosciences
COGT
$1.79B
| $569K | ﹤0.01% |
79,361
+79,349
| +661,242% | +$569K |
|
572
Lightspeed Commerce
LSPD
$1.64B
| $566K | ﹤0.01% |
48,373
-22,147
| -31% | -$259K |
|
573
Ventas
VTR
$31B
| $565K | ﹤0.01% |
+8,958
| New | +$565K |
|
574
Vanguard Information Technology ETF
VGT
$101B
| $564K | ﹤0.01% |
+851
| New | +$564K |
|
575
MarketAxess Holdings
MKTX
$7.03B
| $562K | ﹤0.01% |
2,519
-4,424
| -64% | -$987K |
|