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 | |
|---|---|---|---|---|---|---|
26
Intel
INTC
$105B
| $17.6M | 0.02% |
539,870
+519,643
| +2,569% | +$17M |
|
27
Petrobras
PBR
$79.3B
| $17.5M | 0.02% |
1,676,726
+1,575,558
| +1,557% | +$16.4M |
|
28
Roku
ROKU
$14.5B
| $15.9M | 0.01% |
241,991
+207,373
| +599% | +$13.6M |
|
29
Walt Disney
DIS
$211B
| $15.8M | 0.01% |
157,334
-21,065
| -12% | -$2.11M |
|
30
General Mills
GIS
$26.6B
| $15.1M | 0.01% |
176,416
+19,929
| +13% | +$1.7M |
|
31
AT&T
T
$208B
| $15M | 0.01% |
777,321
-1,692,394
| -69% | -$32.6M |
|
32
Cigna
CI
$80.2B
| $14.7M | 0.01% |
+57,565
| New | +$14.7M |
|
33
Accenture
ACN
$158B
| $14.6M | 0.01% |
51,079
+15,726
| +44% | +$4.49M |
|
34
FedEx
FDX
$53.2B
| $14.3M | 0.01% |
62,644
+34,635
| +124% | +$7.91M |
|
|
B
35
Barrick Mining Corporation
B
$46.3B
| $14.3M | 0.01% |
769,372
-436,035
| -36% | -$8.1M |
|
36
ProShares UltraPro Short QQQ
SQQQ
$2.39B
| $14.2M | 0.01% |
+484,898
| New | +$14.2M |
|
37
CrowdStrike
CRWD
$104B
| $14.1M | 0.01% |
102,506
+102,431
| +136,575% | +$14.1M |
|
38
VanEck Gold Miners ETF
GDX
$19.6B
| $13.5M | 0.01% |
416,884
+300,083
| +257% | +$9.71M |
|
39
Delta Air Lines
DAL
$40B
| $13.3M | 0.01% |
381,394
+361,090
| +1,778% | +$12.6M |
|
40
Charles Schwab
SCHW
$175B
| $12.7M | 0.01% |
+242,679
| New | +$12.7M |
|
41
Newmont
NEM
$82.8B
| $12.3M | 0.01% |
249,993
+222,418
| +807% | +$10.9M |
|
|
XYZ
42
Block, Inc.
XYZ
$46.2B
| $12.3M | 0.01% |
178,503
-47,434
| -21% | -$3.26M |
|
43
Diamondback Energy
FANG
$41.2B
| $11.9M | 0.01% |
87,873
+86,123
| +4,921% | +$11.6M |
|
44
Snowflake
SNOW
$76.5B
| $11.9M | 0.01% |
76,852
+75,752
| +6,887% | +$11.7M |
|
45
C3.ai
AI
$2.29B
| $11.8M | 0.01% |
352,231
+351,521
| +49,510% | +$11.8M |
|
46
Nike
NKE
$110B
| $11.7M | 0.01% |
+95,509
| New | +$11.7M |
|
47
SPDR S&P Regional Banking ETF
KRE
$3.97B
| $11.5M | 0.01% |
+261,312
| New | +$11.5M |
|
48
MongoDB
MDB
$25.5B
| $11.3M | 0.01% |
48,318
+45,528
| +1,632% | +$10.6M |
|
|
ATVI
49
DELISTED
Activision Blizzard Inc.
ATVI
| $11.1M | 0.01% |
130,151
+99,638
| +327% | +$8.53M |
|
50
AbbVie
ABBV
$374B
| $10.8M | 0.01% |
67,526
+52,483
| +349% | +$8.36M |
|