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 | |
|---|---|---|---|---|---|---|
1426
PureCycle Technologies
PCT
$2.4B
| $126K | ﹤0.01% |
+13,210
| New | +$126K |
|
1427
Perdoceo Education
PRDO
$2.26B
| $126K | ﹤0.01% |
10,751
+7,094
| +194% | +$83.1K |
|
1428
Invesco S&P 500 Pure Growth ETF
RPG
$1.75B
| $126K | ﹤0.01% |
2,990
+2,490
| +498% | +$105K |
|
1429
ProShares Short Russell2000
RWM
$126M
| $126K | ﹤0.01% |
+6,059
| New | +$126K |
|
1430
Sunoco
SUN
$6.85B
| $126K | ﹤0.01% |
3,090
+1,728
| +127% | +$70.5K |
|
|
SUP
1431
DELISTED
Superior Industries International
SUP
| $126K | ﹤0.01% |
28,202
-72,344
| -72% | -$323K |
|
1432
Federal Agricultural Mortgage
AGM
$2.15B
| $125K | ﹤0.01% |
1,012
+889
| +723% | +$110K |
|
1433
Alzamend Neuro
ALZN
$7.57M
| $125K | ﹤0.01% |
+49
| New | +$125K |
|
1434
Direxion Daily Aerospace & Defense Bull 3X Shares
DFEN
$333M
| $125K | ﹤0.01% |
6,714
-4,540
| -40% | -$84.5K |
|
1435
Kamada
KMDA
$404M
| $125K | ﹤0.01% |
19,049
+14,701
| +338% | +$96.5K |
|
1436
Everspin Technologies
MRAM
$154M
| $125K | ﹤0.01% |
+11,093
| New | +$125K |
|
1437
ProShares Ultra Euro
ULE
$7.26M
| $125K | ﹤0.01% |
9,441
+7,341
| +350% | +$97.2K |
|
|
SCPL
1438
DELISTED
SciPlay Corporation Class A Common Stock
SCPL
| $125K | ﹤0.01% |
9,075
-2,329
| -20% | -$32.1K |
|
1439
Akebia Therapeutics
AKBA
$782M
| $124K | ﹤0.01% |
+55,035
| New | +$124K |
|
1440
Deutsche Bank
DB
$71.6B
| $124K | ﹤0.01% |
9,939
-63,964
| -87% | -$798K |
|
|
RDHL
1441
Redhill Biopharma
RDHL
$3.47M
| $124K | ﹤0.01% |
48
+21
| +78% | +$54.3K |
|
1442
Cerus
CERS
$236M
| $123K | ﹤0.01% |
18,131
-9,140
| -34% | -$62K |
|
1443
Tiptree Inc
TIPT
$956M
| $123K | ﹤0.01% |
8,907
-34,384
| -79% | -$475K |
|
|
BWAC
1444
DELISTED
BETTER WORLD ACQUISITION CORP. Common Stock
BWAC
| $123K | ﹤0.01% |
+12,171
| New | +$123K |
|
1445
Fusion Fuel Green
HTOO
$7.37M
| $122K | ﹤0.01% |
+422
| New | +$122K |
|
1446
Lantronix
LTRX
$174M
| $122K | ﹤0.01% |
+15,642
| New | +$122K |
|
1447
Ross Stores
ROST
$48.4B
| $122K | ﹤0.01% |
+1,072
| New | +$122K |
|
|
HEP
1448
DELISTED
Holly Energy Partners, L.P.
HEP
| $122K | ﹤0.01% |
+7,438
| New | +$122K |
|
1449
Aramark
ARMK
$10.1B
| $121K | ﹤0.01% |
4,583
-7,534
| -62% | -$199K |
|
|
PLYA
1450
DELISTED
Playa Hotels & Resorts
PLYA
| $121K | ﹤0.01% |
15,286
-35,516
| -70% | -$281K |
|