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 |
Apple
AAPL
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
51
CVS Health
CVS
$93B
| $10.7M | 0.01% |
143,700
+123,280
| +604% | +$9.16M |
|
|
LSI
52
DELISTED
Life Storage, Inc.
LSI
| $10.6M | 0.01% |
+80,608
| New | +$10.6M |
|
53
ARK Innovation ETF
ARKK
$7.43B
| $10.3M | 0.01% |
255,782
+249,670
| +4,085% | +$10.1M |
|
54
Advanced Micro Devices
AMD
$263B
| $10.2M | 0.01% |
103,993
+100,395
| +2,790% | +$9.84M |
|
55
Apollo Global Management
APO
$75.9B
| $10.1M | 0.01% |
+159,704
| New | +$10.1M |
|
56
DraftKings
DKNG
$23.7B
| $10M | 0.01% |
519,003
+518,915
| +589,676% | +$10M |
|
57
Peabody Energy
BTU
$2.08B
| $9.87M | 0.01% |
385,446
+234,015
| +155% | +$5.99M |
|
58
The Communication Services Select Sector SPDR Fund
XLC
$25.4B
| $9.65M | 0.01% |
166,434
+104,998
| +171% | +$6.09M |
|
59
Workday
WDAY
$62.3B
| $9.57M | 0.01% |
+46,328
| New | +$9.57M |
|
60
Marvell Technology
MRVL
$53.7B
| $9.51M | 0.01% |
219,701
+144,248
| +191% | +$6.25M |
|
61
iShares China Large-Cap ETF
FXI
$6.65B
| $9.43M | 0.01% |
319,302
-1,264,636
| -80% | -$37.3M |
|
62
Teva Pharmaceuticals
TEVA
$21.5B
| $9.19M | 0.01% |
1,038,807
-235,311
| -18% | -$2.08M |
|
63
Materials Select Sector SPDR Fund
XLB
$5.46B
| $9.07M | 0.01% |
112,457
+90,405
| +410% | +$7.29M |
|
64
Baidu
BIDU
$33.1B
| $8.8M | 0.01% |
58,281
+58,181
| +58,181% | +$8.78M |
|
|
PARA
65
DELISTED
Paramount Global Class B
PARA
| $8.76M | 0.01% |
392,750
-27,664
| -7% | -$617K |
|
66
Fidelity National Information Services
FIS
$35.6B
| $8.67M | 0.01% |
+159,516
| New | +$8.67M |
|
67
Western Alliance Bancorporation
WAL
$9.88B
| $8.15M | 0.01% |
+229,321
| New | +$8.15M |
|
68
CF Industries
CF
$13.7B
| $7.96M | 0.01% |
109,766
+55,446
| +102% | +$4.02M |
|
69
Suncor Energy
SU
$49.3B
| $7.68M | 0.01% |
247,494
-20,867
| -8% | -$648K |
|
70
TSMC
TSM
$1.2T
| $7.67M | 0.01% |
82,490
+82,435
| +149,882% | +$7.67M |
|
71
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$820M
| $7.57M | 0.01% |
180,452
+47,380
| +36% | +$1.99M |
|
72
Palantir
PLTR
$367B
| $7.5M | 0.01% |
887,342
+241,025
| +37% | +$2.04M |
|
73
United Airlines
UAL
$34.4B
| $7.32M | 0.01% |
165,464
+163,464
| +8,173% | +$7.23M |
|
74
iShares MSCI China ETF
MCHI
$7.91B
| $7.21M | 0.01% |
+144,460
| New | +$7.21M |
|
75
Ford
F
$46.2B
| $7.19M | 0.01% |
+570,639
| New | +$7.19M |
|