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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
Fortive
FTV
$16.5B
| $380K | 0.02% |
7,558
+6,996
| +1,245% | +$352K |
|
|
LTC
527
LTC Properties
LTC
$1.65B
| $380K | 0.02% |
7,946
-371
| -4% | -$17.7K |
|
528
Terex
TEX
$3.5B
| $380K | 0.02% |
+12,110
| New | +$380K |
|
|
DDC
529
DELISTED
Dominion Diamond Corporation
DDC
| $380K | 0.02% |
30,119
+5,172
| +21% | +$65.3K |
|
530
Ternium
TX
$6.9B
| $379K | 0.02% |
14,511
+12,986
| +852% | +$339K |
|
|
CRC
531
DELISTED
California Resources Corporation
CRC
| $376K | 0.02% |
25,035
+4,548
| +22% | +$68.3K |
|
532
Sunoco
SUN
$6.86B
| $375K | 0.02% |
15,530
-9,399
| -38% | -$227K |
|
|
TRCO
533
DELISTED
TRIBUNE MEDIA COMPANY CLASS A
TRCO
| $373K | 0.02% |
10,017
-1,933
| -16% | -$72K |
|
534
Pentair
PNR
$18.3B
| $370K | 0.02% |
+8,778
| New | +$370K |
|
535
Myriad Genetics
MYGN
$715M
| $369K | 0.02% |
19,238
+15,106
| +366% | +$290K |
|
|
MNK
536
DELISTED
MALLINCKRODT PUBLIC LIMITED COMPANY
MNK
| $369K | 0.02% |
+8,283
| New | +$369K |
|
537
Keurig Dr Pepper
KDP
$36.9B
| $367K | 0.02% |
+3,756
| New | +$367K |
|
538
Ball Corp
BALL
$13.4B
| $361K | 0.02% |
+9,732
| New | +$361K |
|
539
MBIA
MBI
$379M
| $361K | 0.02% |
+42,683
| New | +$361K |
|
540
Hecla Mining
HL
$7.22B
| $360K | 0.02% |
68,127
+2,074
| +3% | +$11K |
|
541
McKesson
MCK
$85.8B
| $360K | 0.02% |
2,431
+578
| +31% | +$85.6K |
|
542
Golar LNG
GLNG
$4.09B
| $359K | 0.02% |
12,866
-3,573
| -22% | -$99.7K |
|
|
ANDX
543
DELISTED
Andeavor Logistics LP
ANDX
| $358K | 0.02% |
+6,579
| New | +$358K |
|
|
LTXB
544
DELISTED
LegacyTexas Financial Group Inc
LTXB
| $357K | 0.02% |
+8,948
| New | +$357K |
|
|
VMW
545
DELISTED
VMware, Inc
VMW
| $356K | 0.02% |
+3,867
| New | +$356K |
|
546
SPDR S&P Oil & Gas Equipment & Services ETF
XES
$159M
| $353K | 0.02% |
+1,759
| New | +$353K |
|
547
Molson Coors Class B
TAP
$9.27B
| $351K | 0.02% |
+3,674
| New | +$351K |
|
548
iShares MSCI Malaysia ETF
EWM
$246M
| $351K | 0.02% |
11,545
+7,836
| +211% | +$238K |
|
549
Allegiant Air
ALGT
$1.15B
| $346K | 0.02% |
2,162
+1,954
| +939% | +$313K |
|
|
RDS.B
550
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
| $346K | 0.02% |
+6,214
| New | +$346K |
|