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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
426
Vanguard High Dividend Yield ETF
VYM
$64.2B
| $1.02M | ﹤0.01% |
7,944
+3,877
| +95% | +$497K |
|
|
AMED
427
DELISTED
Amedisys
AMED
| $1.02M | ﹤0.01% |
10,545
+2,112
| +25% | +$204K |
|
428
Lowe's Companies
LOW
$153B
| $1.01M | ﹤0.01% |
+3,722
| New | +$1.01M |
|
429
Moody's
MCO
$91B
| $1.01M | ﹤0.01% |
+2,121
| New | +$1.01M |
|
430
Warby Parker
WRBY
$3.26B
| $1.01M | ﹤0.01% |
61,653
+27,261
| +79% | +$445K |
|
431
First Majestic Silver
AG
$4.47B
| $1M | ﹤0.01% |
166,674
-4,184
| -2% | -$25.1K |
|
432
Applied Digital
APLD
$3.98B
| $1M | ﹤0.01% |
121,267
-59,018
| -33% | -$487K |
|
433
Hologic
HOLX
$14.8B
| $996K | ﹤0.01% |
12,229
+6,559
| +116% | +$534K |
|
434
Perrigo
PRGO
$3.07B
| $983K | ﹤0.01% |
37,498
+12,893
| +52% | +$338K |
|
435
TD Synnex
SNX
$12.4B
| $975K | ﹤0.01% |
+8,127
| New | +$975K |
|
436
FMC
FMC
$4.73B
| $974K | ﹤0.01% |
+14,785
| New | +$974K |
|
437
Manhattan Associates
MANH
$13.3B
| $971K | ﹤0.01% |
+3,452
| New | +$971K |
|
438
Northern Trust
NTRS
$24.3B
| $964K | ﹤0.01% |
+10,709
| New | +$964K |
|
439
Parker-Hannifin
PH
$95.7B
| $963K | ﹤0.01% |
1,525
-823
| -35% | -$520K |
|
440
Seadrill
SDRL
$2.03B
| $960K | ﹤0.01% |
24,178
+20,464
| +551% | +$813K |
|
441
Vestis
VSTS
$562M
| $958K | ﹤0.01% |
64,340
-72,624
| -53% | -$1.08M |
|
442
Virtu Financial
VIRT
$3.26B
| $942K | ﹤0.01% |
30,933
-22,843
| -42% | -$696K |
|
|
JMIA
443
Jumia Technologies
JMIA
$1.19B
| $941K | ﹤0.01% |
176,356
-42,895
| -20% | -$229K |
|
444
Cloudflare
NET
$76.2B
| $938K | ﹤0.01% |
+11,605
| New | +$938K |
|
445
HSBC
HSBC
$230B
| $935K | ﹤0.01% |
20,693
+9,931
| +92% | +$449K |
|
446
Tradeweb Markets
TW
$25.5B
| $935K | ﹤0.01% |
7,568
-7,115
| -48% | -$879K |
|
447
Structure Therapeutics
GPCR
$1.2B
| $933K | ﹤0.01% |
21,259
-16,078
| -43% | -$706K |
|
448
Enterprise Products Partners
EPD
$68.1B
| $931K | ﹤0.01% |
32,014
-92,938
| -74% | -$2.7M |
|
449
Lennar Class A
LEN
$35.6B
| $930K | ﹤0.01% |
5,128
-10,730
| -68% | -$1.95M |
|
|
VRNA
450
Verona Pharma
VRNA
$9.19B
| $927K | ﹤0.01% |
32,230
+21,293
| +195% | +$612K |
|