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 | |
|---|---|---|---|---|---|---|
651
Banc of California
BANC
$2.65B
| $446K | ﹤0.01% |
30,331
-11,276
| -27% | -$166K |
|
|
BORR
652
Borr Drilling
BORR
$884M
| $442K | ﹤0.01% |
80,657
-7,361
| -8% | -$40.3K |
|
653
United Microelectronic
UMC
$17.2B
| $441K | ﹤0.01% |
52,453
+43,567
| +490% | +$366K |
|
654
ProShares UltraShort Silver
ZSL
$19.8M
| $440K | ﹤0.01% |
11,549
+11,360
| +6,011% | +$433K |
|
655
Conagra Brands
CAG
$9.27B
| $439K | ﹤0.01% |
13,512
+6,685
| +98% | +$217K |
|
656
MKS Inc. Common Stock
MKSI
$7.43B
| $439K | ﹤0.01% |
4,046
+909
| +29% | +$98.6K |
|
|
ORC
657
Orchid Island Capital
ORC
$951M
| $439K | ﹤0.01% |
53,435
+42,498
| +389% | +$349K |
|
658
Tyler Technologies
TYL
$23.6B
| $437K | ﹤0.01% |
+750
| New | +$437K |
|
659
iShares S&P 500 Growth ETF
IVW
$65B
| $436K | ﹤0.01% |
4,555
-19,400
| -81% | -$1.86M |
|
660
Ovintiv
OVV
$11B
| $436K | ﹤0.01% |
+11,387
| New | +$436K |
|
661
ITT
ITT
$13.6B
| $434K | ﹤0.01% |
+2,908
| New | +$434K |
|
662
Roivant Sciences
ROIV
$9.4B
| $432K | ﹤0.01% |
+37,475
| New | +$432K |
|
663
SFL Corp
SFL
$1.09B
| $431K | ﹤0.01% |
+37,303
| New | +$431K |
|
|
MTTR
664
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $431K | ﹤0.01% |
95,933
-61,601
| -39% | -$277K |
|
665
Galicia Financial Group
GGAL
$5.15B
| $429K | ﹤0.01% |
10,206
-68,579
| -87% | -$2.88M |
|
|
TEM
666
Tempus AI, Inc. Class A Common Stock
TEM
$13.6B
| $429K | ﹤0.01% |
+7,596
| New | +$429K |
|
667
Burford Capital
BUR
$2.73B
| $426K | ﹤0.01% |
32,165
-37,037
| -54% | -$491K |
|
668
Grab
GRAB
$21.6B
| $425K | ﹤0.01% |
+111,916
| New | +$425K |
|
669
Hertz
HTZ
$1.82B
| $425K | ﹤0.01% |
128,788
-89,500
| -41% | -$295K |
|
670
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$2.3B
| $424K | ﹤0.01% |
+14,844
| New | +$424K |
|
671
BuzzFeed
BZFD
$70M
| $421K | ﹤0.01% |
158,072
+14,665
| +10% | +$39.1K |
|
672
-1x Short VIX Futures ETF
SVIX
$191M
| $421K | ﹤0.01% |
15,580
-9,210
| -37% | -$249K |
|
|
HIMX
673
Himax Technologies
HIMX
$1.47B
| $418K | ﹤0.01% |
76,065
-18,811
| -20% | -$103K |
|
674
Healthpeak Properties
DOC
$12.5B
| $417K | ﹤0.01% |
+18,238
| New | +$417K |
|
675
Corning
GLW
$64.2B
| $417K | ﹤0.01% |
9,252
+8,149
| +739% | +$367K |
|