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 | |
|---|---|---|---|---|---|---|
451
Cardinal Health
CAH
$36B
| $1.26M | ﹤0.01% |
24,487
+553
| +2% | +$28.5K |
|
452
iShares MSCI Chile ETF
ECH
$701M
| $1.26M | ﹤0.01% |
+54,431
| New | +$1.26M |
|
453
Fluor
FLR
$6.58B
| $1.25M | ﹤0.01% |
50,630
+3,059
| +6% | +$75.8K |
|
454
iShares MSCI Turkey ETF
TUR
$162M
| $1.25M | ﹤0.01% |
67,513
+30,167
| +81% | +$560K |
|
455
Credit Acceptance
CACC
$5.83B
| $1.25M | ﹤0.01% |
1,822
-1,712
| -48% | -$1.18M |
|
456
Texas Roadhouse
TXRH
$11.2B
| $1.25M | ﹤0.01% |
14,027
+4,577
| +48% | +$409K |
|
457
Vanguard Mid-Cap Growth ETF
VOT
$17.7B
| $1.24M | ﹤0.01% |
4,874
+2,504
| +106% | +$638K |
|
458
Cencora
COR
$57.9B
| $1.24M | ﹤0.01% |
9,317
-412
| -4% | -$54.7K |
|
459
Qiagen
QGEN
$10.2B
| $1.23M | ﹤0.01% |
20,883
+16,282
| +354% | +$959K |
|
460
Blackstone
BX
$135B
| $1.22M | ﹤0.01% |
9,454
-63,673
| -87% | -$8.24M |
|
461
AbCellera Biologics
ABCL
$1.27B
| $1.22M | ﹤0.01% |
85,424
+57,142
| +202% | +$817K |
|
462
Applovin
APP
$189B
| $1.22M | ﹤0.01% |
12,898
+5,411
| +72% | +$510K |
|
|
MIME
463
DELISTED
Mimecast Limited
MIME
| $1.21M | ﹤0.01% |
15,254
+10,639
| +231% | +$846K |
|
464
United Airlines
UAL
$34.2B
| $1.21M | ﹤0.01% |
27,693
+25,193
| +1,008% | +$1.1M |
|
465
Whirlpool
WHR
$5.24B
| $1.21M | ﹤0.01% |
+5,169
| New | +$1.21M |
|
|
SAFE
466
Safehold
SAFE
$1.17B
| $1.21M | ﹤0.01% |
9,591
+8,462
| +750% | +$1.06M |
|
467
American Water Works
AWK
$27.3B
| $1.2M | ﹤0.01% |
6,376
+6,209
| +3,718% | +$1.17M |
|
468
AvalonBay Communities
AVB
$27.8B
| $1.2M | ﹤0.01% |
4,757
-6,574
| -58% | -$1.66M |
|
469
United States 12 Month Oil Fund,
USL
$42.8M
| $1.2M | ﹤0.01% |
43,019
+12,411
| +41% | +$346K |
|
470
Alto Ingredients
ALTO
$89.8M
| $1.2M | ﹤0.01% |
249,441
+16,368
| +7% | +$78.7K |
|
471
Bunge Global
BG
$16.8B
| $1.2M | ﹤0.01% |
12,828
-28,167
| -69% | -$2.63M |
|
472
Vanguard FTSE Europe ETF
VGK
$27B
| $1.2M | ﹤0.01% |
17,543
-12,416
| -41% | -$847K |
|
|
SII
473
Sprott
SII
$1.76B
| $1.19M | ﹤0.01% |
26,482
+13,167
| +99% | +$594K |
|
474
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$854M
| $1.19M | ﹤0.01% |
23,230
-15,087
| -39% | -$771K |
|
475
B. Riley Financial
RILY
$162M
| $1.19M | ﹤0.01% |
13,359
-21,666
| -62% | -$1.93M |
|