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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
Mid-America Apartment Communities
MAA
$16.8B
| $1.02M | ﹤0.01% |
+4,449
| New | +$1.02M |
|
527
CRISPR Therapeutics
CRSP
$4.82B
| $1.02M | ﹤0.01% |
13,421
-1,765
| -12% | -$134K |
|
528
Waters Corp
WAT
$17.5B
| $1.02M | ﹤0.01% |
+2,729
| New | +$1.02M |
|
529
Yext
YEXT
$1.05B
| $1.02M | ﹤0.01% |
102,405
+81,718
| +395% | +$810K |
|
|
BKI
530
DELISTED
Black Knight, Inc. Common Stock
BKI
| $1.01M | ﹤0.01% |
12,208
+11,489
| +1,598% | +$951K |
|
531
Entergy
ETR
$39.4B
| $1.01M | ﹤0.01% |
+17,936
| New | +$1.01M |
|
|
TXNM
532
TXNM Energy, Inc.
TXNM
$6B
| $1.01M | ﹤0.01% |
22,125
+12,548
| +131% | +$572K |
|
|
SI
533
DELISTED
Silvergate Capital Corporation
SI
| $1.01M | ﹤0.01% |
6,806
+5,514
| +427% | +$817K |
|
534
Direxion Daily Small Cap Bear 3x Shares
TZA
$291M
| $1M | ﹤0.01% |
37,159
+14,357
| +63% | +$388K |
|
535
Colgate-Palmolive
CL
$66.7B
| $1M | ﹤0.01% |
11,731
-10,276
| -47% | -$877K |
|
536
Digital Realty Trust
DLR
$59.2B
| $1M | ﹤0.01% |
5,659
+4,574
| +422% | +$808K |
|
537
Plains All American Pipeline
PAA
$12.1B
| $997K | ﹤0.01% |
+106,771
| New | +$997K |
|
538
Cadence Design Systems
CDNS
$91.4B
| $996K | ﹤0.01% |
5,347
-4,760
| -47% | -$887K |
|
539
Amplify Transformational Data Sharing ETF
BLOK
$1.24B
| $992K | ﹤0.01% |
24,709
+9,362
| +61% | +$376K |
|
540
Lumentum
LITE
$11.6B
| $990K | ﹤0.01% |
9,365
-7,414
| -44% | -$784K |
|
541
Vicor
VICR
$2.29B
| $990K | ﹤0.01% |
7,802
+6,471
| +486% | +$821K |
|
542
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$431M
| $985K | ﹤0.01% |
60,161
+32,099
| +114% | +$526K |
|
|
MMP
543
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $983K | ﹤0.01% |
+21,179
| New | +$983K |
|
544
Elanco Animal Health
ELAN
$9.37B
| $982K | ﹤0.01% |
34,615
+10,797
| +45% | +$306K |
|
|
RETA
545
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $979K | ﹤0.01% |
+37,150
| New | +$979K |
|
546
Woodward
WWD
$14.3B
| $972K | ﹤0.01% |
8,883
+8,531
| +2,424% | +$933K |
|
|
GPMT
547
Granite Point Mortgage Trust
GPMT
$143M
| $969K | ﹤0.01% |
+82,771
| New | +$969K |
|
548
InMode
INMD
$961M
| $965K | ﹤0.01% |
+13,677
| New | +$965K |
|
549
Empire State Realty Trust
ESRT
$1.29B
| $956K | ﹤0.01% |
107,417
+86,765
| +420% | +$772K |
|
550
Franco-Nevada
FNV
$38.2B
| $953K | ﹤0.01% |
+6,896
| New | +$953K |
|