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 |
Microsoft
MSFT
|
+$101M |
| 2 |
NVIDIA
NVDA
|
+$66M |
| 3 |
Citigroup
C
|
+$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
+$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
+$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$64M |
| 3 |
Meta Platforms (Facebook)
META
|
+$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
+$34.3M |
| 5 |
PayPal
PYPL
|
+$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
DEN
401
DELISTED
Denbury Inc.
DEN
| $895K | ﹤0.01% |
+10,385
| New | +$895K |
|
402
Bio-Rad Laboratories Class A
BIO
$7.68B
| $893K | ﹤0.01% |
+2,142
| New | +$893K |
|
403
Coeur Mining
CDE
$9.38B
| $880K | ﹤0.01% |
257,325
+117,963
| +85% | +$403K |
|
404
Constellation Brands
STZ
$25.3B
| $877K | ﹤0.01% |
3,821
-1,887
| -33% | -$433K |
|
405
VF Corp
VFC
$5.86B
| $874K | ﹤0.01% |
+29,253
| New | +$874K |
|
406
Maximus
MMS
$4.96B
| $873K | ﹤0.01% |
15,092
-11,602
| -43% | -$671K |
|
407
ProShares UltraShort Dow 30
DXD
$53M
| $872K | ﹤0.01% |
14,867
+10,631
| +251% | +$624K |
|
408
First Horizon
FHN
$11.5B
| $871K | ﹤0.01% |
38,047
-513
| -1% | -$11.7K |
|
409
NXP Semiconductors
NXPI
$56B
| $866K | ﹤0.01% |
5,875
+3,318
| +130% | +$489K |
|
410
Gen Digital
GEN
$18.2B
| $863K | ﹤0.01% |
42,887
+26,309
| +159% | +$529K |
|
411
Levi Strauss
LEVI
$8.52B
| $863K | ﹤0.01% |
59,702
+37,039
| +163% | +$535K |
|
412
LKQ Corp
LKQ
$8.24B
| $862K | ﹤0.01% |
18,294
+136
| +0.7% | +$6.41K |
|
413
American Eagle Outfitters
AEO
$3.23B
| $857K | ﹤0.01% |
88,180
-22,807
| -21% | -$222K |
|
414
Blue Owl Capital
OWL
$11.8B
| $856K | ﹤0.01% |
92,787
-224,957
| -71% | -$2.08M |
|
415
LSB Industries
LXU
$567M
| $855K | ﹤0.01% |
+60,039
| New | +$855K |
|
|
RAM
416
DELISTED
Aries I Acquisition Corporation Class A Ordinary Share
RAM
| $853K | ﹤0.01% |
+83,146
| New | +$853K |
|
417
Hormel Foods
HRL
$13.7B
| $850K | ﹤0.01% |
+18,724
| New | +$850K |
|
418
Lightspeed Commerce
LSPD
$1.6B
| $840K | ﹤0.01% |
47,828
+2,533
| +6% | +$44.5K |
|
419
Bentley Systems
BSY
$16.2B
| $838K | ﹤0.01% |
27,401
+26,303
| +2,396% | +$804K |
|
420
Methanex
MEOH
$3B
| $833K | ﹤0.01% |
+26,140
| New | +$833K |
|
|
ARNC
421
DELISTED
Arconic Corporation
ARNC
| $832K | ﹤0.01% |
48,830
+14,950
| +44% | +$255K |
|
422
Tencent Music
TME
$39.1B
| $831K | ﹤0.01% |
204,913
+645
| +0.3% | +$2.62K |
|
423
RTX Corp
RTX
$205B
| $830K | ﹤0.01% |
+10,141
| New | +$830K |
|
424
Embraer
ERJ
$11.2B
| $824K | ﹤0.01% |
95,837
-48,965
| -34% | -$421K |
|
425
Intrepid Potash
IPI
$386M
| $819K | ﹤0.01% |
20,713
+3,223
| +18% | +$127K |
|