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
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
376
PAR Technology
PAR
$1.96B
| $1.47M | ﹤0.01% |
36,458
+19,322
| +113% | +$779K |
|
377
System1
SST
$62.5M
| $1.47M | ﹤0.01% |
+10,099
| New | +$1.47M |
|
378
Kraft Heinz
KHC
$32.3B
| $1.46M | ﹤0.01% |
37,174
-43,060
| -54% | -$1.7M |
|
379
Universal Display
OLED
$6.91B
| $1.46M | ﹤0.01% |
8,765
+4,378
| +100% | +$731K |
|
380
TC Energy
TRP
$53.9B
| $1.46M | ﹤0.01% |
25,827
+25,343
| +5,236% | +$1.43M |
|
381
FuelCell Energy
FCEL
$92.3M
| $1.45M | ﹤0.01% |
8,410
-9,792
| -54% | -$1.69M |
|
382
LivaNova
LIVN
$3.17B
| $1.44M | ﹤0.01% |
17,596
+14,080
| +400% | +$1.15M |
|
383
Ternium
TX
$6.79B
| $1.44M | ﹤0.01% |
+31,533
| New | +$1.44M |
|
384
Pan American Silver
PAAS
$14.6B
| $1.44M | ﹤0.01% |
52,621
-53,079
| -50% | -$1.45M |
|
385
iShares Russell 1000 Growth ETF
IWF
$117B
| $1.43M | ﹤0.01% |
5,139
-6,397
| -55% | -$1.78M |
|
386
WM Technology
MAPS
$126M
| $1.41M | ﹤0.01% |
180,739
+54,325
| +43% | +$425K |
|
387
Vroom, Inc. Common Stock
VRM
$140M
| $1.41M | ﹤0.01% |
+6,627
| New | +$1.41M |
|
|
RSX
388
DELISTED
VanEck Russia ETF
RSX
| $1.41M | ﹤0.01% |
+248,920
| New | +$1.41M |
|
389
Travelers Companies
TRV
$62B
| $1.4M | ﹤0.01% |
7,685
+5,541
| +258% | +$1.01M |
|
390
ProShares UltraPro Short S&P 500
SPXU
$523M
| $1.4M | ﹤0.01% |
+20,978
| New | +$1.4M |
|
391
Privia Health
PRVA
$2.86B
| $1.4M | ﹤0.01% |
+52,263
| New | +$1.4M |
|
392
Canadian Pacific Kansas City
CP
$70.3B
| $1.39M | ﹤0.01% |
+16,877
| New | +$1.39M |
|
393
Virtu Financial
VIRT
$3.29B
| $1.39M | ﹤0.01% |
+37,350
| New | +$1.39M |
|
394
Vertex Pharmaceuticals
VRTX
$102B
| $1.39M | ﹤0.01% |
5,312
-8,253
| -61% | -$2.15M |
|
395
Fastenal
FAST
$55.1B
| $1.39M | ﹤0.01% |
+46,652
| New | +$1.39M |
|
396
Pinduoduo
PDD
$177B
| $1.38M | ﹤0.01% |
34,500
+34,300
| +17,150% | +$1.37M |
|
397
Fox Class A
FOXA
$27.4B
| $1.38M | ﹤0.01% |
+35,054
| New | +$1.38M |
|
398
Zillow
ZG
$20.5B
| $1.38M | ﹤0.01% |
28,576
+5,526
| +24% | +$266K |
|
399
US Foods
USFD
$17.5B
| $1.37M | ﹤0.01% |
+36,517
| New | +$1.37M |
|
400
Franco-Nevada
FNV
$37.3B
| $1.37M | ﹤0.01% |
8,577
+1,681
| +24% | +$268K |
|