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 | |
|---|---|---|---|---|---|---|
276
Sonoco
SON
$4.56B
| $1.43M | ﹤0.01% |
25,170
-6,297
| -20% | -$357K |
|
277
M&T Bank
MTB
$31.2B
| $1.42M | ﹤0.01% |
+8,072
| New | +$1.42M |
|
278
FuelCell Energy
FCEL
$92.3M
| $1.41M | ﹤0.01% |
13,827
+9,225
| +200% | +$943K |
|
279
Philip Morris
PM
$251B
| $1.4M | ﹤0.01% |
+16,923
| New | +$1.4M |
|
280
Lithia Motors
LAD
$8.74B
| $1.38M | ﹤0.01% |
6,413
+4,193
| +189% | +$899K |
|
|
CRON
281
Cronos Group
CRON
$957M
| $1.37M | ﹤0.01% |
485,412
+243,337
| +101% | +$686K |
|
282
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.4B
| $1.36M | ﹤0.01% |
153,606
+142,089
| +1,234% | +$1.26M |
|
283
Strategy Inc Common Stock Class A
MSTR
$95.2B
| $1.34M | ﹤0.01% |
62,950
+42,040
| +201% | +$892K |
|
284
Trump Media & Technology Group
DJT
$4.67B
| $1.33M | ﹤0.01% |
78,916
+35,037
| +80% | +$589K |
|
285
Franklin Resources
BEN
$13B
| $1.32M | ﹤0.01% |
+61,566
| New | +$1.32M |
|
286
ProShares UltraPro Dow 30
UDOW
$715M
| $1.32M | ﹤0.01% |
+34,307
| New | +$1.32M |
|
287
Jazz Pharmaceuticals
JAZZ
$7.86B
| $1.31M | ﹤0.01% |
9,807
+3,955
| +68% | +$527K |
|
288
AES
AES
$9.21B
| $1.3M | ﹤0.01% |
+57,406
| New | +$1.3M |
|
|
VRN
289
DELISTED
Veren
VRN
| $1.29M | ﹤0.01% |
208,827
+106,230
| +104% | +$654K |
|
|
RVNC
290
DELISTED
Revance Therapeutics, Inc.
RVNC
| $1.29M | ﹤0.01% |
47,601
+31,375
| +193% | +$847K |
|
291
International Flavors & Fragrances
IFF
$16.9B
| $1.27M | ﹤0.01% |
14,025
+7,646
| +120% | +$694K |
|
292
KLA
KLAC
$119B
| $1.27M | ﹤0.01% |
4,204
-1,784
| -30% | -$540K |
|
293
Camping World
CWH
$1.12B
| $1.27M | ﹤0.01% |
50,233
+48,143
| +2,303% | +$1.22M |
|
294
iShares MSCI South Korea ETF
EWY
$5.22B
| $1.27M | ﹤0.01% |
26,818
-13,606
| -34% | -$644K |
|
295
Parker-Hannifin
PH
$96.1B
| $1.26M | ﹤0.01% |
+5,214
| New | +$1.26M |
|
296
Novo Nordisk
NVO
$245B
| $1.26M | ﹤0.01% |
25,302
+19,196
| +314% | +$956K |
|
297
GDS Holdings
GDS
$6.35B
| $1.25M | ﹤0.01% |
+71,011
| New | +$1.25M |
|
298
Ambac
AMBC
$422M
| $1.25M | ﹤0.01% |
97,854
+30,525
| +45% | +$389K |
|
299
Direxion Daily S&P Biotech Bear 3X Shares
LABD
$56.8M
| $1.25M | ﹤0.01% |
52,093
+44,470
| +583% | +$1.06M |
|
300
Bilibili
BILI
$9.25B
| $1.25M | ﹤0.01% |
81,321
-24,389
| -23% | -$373K |
|