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 |
NVIDIA
NVDA
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
451
Exact Sciences
EXAS
$10.5B
| $987K | ﹤0.01% |
23,380
-94,488
| -80% | -$3.99M |
|
452
Honeywell
HON
$136B
| $982K | ﹤0.01% |
4,601
+4,283
| +1,347% | +$914K |
|
453
VinFast Auto
VFS
$7.72B
| $970K | ﹤0.01% |
225,736
+43,764
| +24% | +$188K |
|
454
SIGA Technologies
SIGA
$627M
| $962K | ﹤0.01% |
126,812
+64,056
| +102% | +$486K |
|
455
The Communication Services Select Sector SPDR Fund
XLC
$26.3B
| $960K | ﹤0.01% |
11,208
-21,924
| -66% | -$1.88M |
|
|
BERY
456
DELISTED
Berry Global Group, Inc.
BERY
| $953K | ﹤0.01% |
17,646
-2,022
| -10% | -$109K |
|
457
Regions Financial
RF
$24.1B
| $950K | ﹤0.01% |
47,422
+26,047
| +122% | +$522K |
|
458
Ormat Technologies
ORA
$5.48B
| $939K | ﹤0.01% |
13,106
+10,040
| +327% | +$719K |
|
459
AerCap
AER
$21.9B
| $937K | ﹤0.01% |
10,059
+1,871
| +23% | +$174K |
|
460
Aramark
ARMK
$10.1B
| $936K | ﹤0.01% |
+27,517
| New | +$936K |
|
461
VICI Properties
VICI
$35.3B
| $929K | ﹤0.01% |
32,440
+24,502
| +309% | +$702K |
|
462
Ambac
AMBC
$426M
| $928K | ﹤0.01% |
72,454
-207,271
| -74% | -$2.65M |
|
463
Hormel Foods
HRL
$14B
| $928K | ﹤0.01% |
+30,464
| New | +$928K |
|
464
Gannett
GCI
$610M
| $927K | ﹤0.01% |
201,206
+193,699
| +2,580% | +$892K |
|
465
Progress Software
PRGS
$1.86B
| $925K | ﹤0.01% |
17,059
+4,561
| +36% | +$247K |
|
466
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$517M
| $923K | ﹤0.01% |
+18,801
| New | +$923K |
|
467
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$13.5B
| $919K | ﹤0.01% |
+10,388
| New | +$919K |
|
468
Intellia Therapeutics
NTLA
$1.28B
| $912K | ﹤0.01% |
40,788
-23,885
| -37% | -$534K |
|
469
Interactive Brokers
IBKR
$27.7B
| $909K | ﹤0.01% |
29,668
-40,760
| -58% | -$1.25M |
|
|
AIOT
470
PowerFleet, Inc. Common Stock
AIOT
$665M
| $909K | ﹤0.01% |
199,005
+70,157
| +54% | +$320K |
|
471
Edison International
EIX
$21.1B
| $906K | ﹤0.01% |
12,620
-3,361
| -21% | -$241K |
|
472
Burford Capital
BUR
$2.74B
| $903K | ﹤0.01% |
+69,202
| New | +$903K |
|
473
LivaNova
LIVN
$3.18B
| $902K | ﹤0.01% |
16,465
-1,403
| -8% | -$76.9K |
|
474
Summit Therapeutics
SMMT
$14B
| $894K | ﹤0.01% |
+114,647
| New | +$894K |
|
475
Nova
NVMI
$8.11B
| $893K | ﹤0.01% |
3,811
+2,488
| +188% | +$583K |
|