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 | |
|---|---|---|---|---|---|---|
301
TechnipFMC
FTI
$16B
| $1.23M | ﹤0.01% |
145,957
+36,328
| +33% | +$307K |
|
|
SIVB
302
DELISTED
SVB Financial Group
SIVB
| $1.23M | ﹤0.01% |
+3,671
| New | +$1.23M |
|
303
iShares US Medical Devices ETF
IHI
$4.35B
| $1.23M | ﹤0.01% |
+26,029
| New | +$1.23M |
|
304
Haleon
HLN
$43.9B
| $1.22M | ﹤0.01% |
+201,107
| New | +$1.22M |
|
305
General Mills
GIS
$27B
| $1.22M | ﹤0.01% |
+15,892
| New | +$1.22M |
|
306
Magnolia Oil & Gas
MGY
$4.38B
| $1.21M | ﹤0.01% |
61,118
-8,741
| -13% | -$173K |
|
307
Corteva
CTVA
$49.1B
| $1.21M | ﹤0.01% |
+21,135
| New | +$1.21M |
|
308
PENN Entertainment
PENN
$2.99B
| $1.21M | ﹤0.01% |
43,889
-22,553
| -34% | -$620K |
|
309
Sunoco
SUN
$6.95B
| $1.21M | ﹤0.01% |
+30,977
| New | +$1.21M |
|
310
Direxion Daily Technology Bear 3x Shares
TECS
$56.5M
| $1.2M | ﹤0.01% |
2,156
+2,050
| +1,934% | +$1.14M |
|
311
Alliance Resource Partners
ARLP
$2.94B
| $1.19M | ﹤0.01% |
52,011
+20,559
| +65% | +$471K |
|
312
ProShares UltraShort Bloomberg Natural Gas
KOLD
$172M
| $1.19M | ﹤0.01% |
138,486
+117,494
| +560% | +$1.01M |
|
313
Quanta Services
PWR
$55.5B
| $1.18M | ﹤0.01% |
+9,291
| New | +$1.18M |
|
314
Urban Outfitters
URBN
$6.35B
| $1.18M | ﹤0.01% |
+60,108
| New | +$1.18M |
|
315
Camtek
CAMT
$3.6B
| $1.18M | ﹤0.01% |
50,812
+26,258
| +107% | +$608K |
|
316
International Paper
IP
$25.7B
| $1.18M | ﹤0.01% |
37,139
-17,085
| -32% | -$541K |
|
317
PVH
PVH
$4.22B
| $1.18M | ﹤0.01% |
26,294
+20,716
| +371% | +$927K |
|
318
Southern Company
SO
$101B
| $1.17M | ﹤0.01% |
+17,253
| New | +$1.17M |
|
319
Abbott
ABT
$231B
| $1.17M | ﹤0.01% |
12,096
-81,632
| -87% | -$7.9M |
|
320
Alamos Gold
AGI
$13.5B
| $1.17M | ﹤0.01% |
157,829
-5,964
| -4% | -$44.2K |
|
321
AutoNation
AN
$8.55B
| $1.17M | ﹤0.01% |
11,463
+9,496
| +483% | +$967K |
|
|
VRAY
322
DELISTED
ViewRay, Inc.
VRAY
| $1.16M | ﹤0.01% |
319,584
+11,827
| +4% | +$43K |
|
323
ICL Group
ICL
$7.85B
| $1.16M | ﹤0.01% |
141,843
+6,372
| +5% | +$52.1K |
|
324
Bumble
BMBL
$697M
| $1.16M | ﹤0.01% |
53,896
+25,979
| +93% | +$558K |
|
325
National Grid
NGG
$69.6B
| $1.15M | ﹤0.01% |
+23,749
| New | +$1.15M |
|