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 |
Amazon
AMZN
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Vanguard Mid-Cap ETF
VO
$87.4B
| $473K | ﹤0.01% |
2,321
+1,792
| +339% | +$365K |
|
502
Levi Strauss
LEVI
$8.59B
| $471K | ﹤0.01% |
30,402
-29,300
| -49% | -$454K |
|
503
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.06B
| $470K | ﹤0.01% |
+17,429
| New | +$470K |
|
504
Lithia Motors
LAD
$8.64B
| $469K | ﹤0.01% |
2,294
-4,119
| -64% | -$842K |
|
505
Vaxcyte
PCVX
$4.15B
| $468K | ﹤0.01% |
9,776
-197
| -2% | -$9.43K |
|
506
First Majestic Silver
AG
$4.61B
| $465K | ﹤0.01% |
55,824
-72,401
| -56% | -$603K |
|
507
Wolverine World Wide
WWW
$2.51B
| $465K | ﹤0.01% |
42,557
+42,383
| +24,358% | +$463K |
|
|
HIMX
508
Himax Technologies
HIMX
$1.47B
| $464K | ﹤0.01% |
74,799
+4,913
| +7% | +$30.5K |
|
509
The Mosaic Company
MOS
$10.6B
| $464K | ﹤0.01% |
+10,595
| New | +$464K |
|
510
B2Gold
BTG
$5.74B
| $463K | ﹤0.01% |
129,869
+18,221
| +16% | +$65K |
|
511
iShares Russell 3000 ETF
IWV
$16.8B
| $463K | ﹤0.01% |
2,101
+1,548
| +280% | +$341K |
|
|
EH
512
EHang Holdings
EH
$1.13B
| $462K | ﹤0.01% |
53,951
+52,890
| +4,985% | +$453K |
|
513
Oramed Pharmaceuticals
ORMP
$95.5M
| $462K | ﹤0.01% |
38,427
-4,791
| -11% | -$57.6K |
|
514
Floor & Decor
FND
$9.16B
| $461K | ﹤0.01% |
+6,632
| New | +$461K |
|
515
BioCryst Pharmaceuticals
BCRX
$1.68B
| $460K | ﹤0.01% |
+40,082
| New | +$460K |
|
516
Byrna Technologies
BYRN
$471M
| $460K | ﹤0.01% |
58,717
+56,648
| +2,738% | +$444K |
|
517
Planet Fitness
PLNT
$8.52B
| $458K | ﹤0.01% |
5,816
+3,087
| +113% | +$243K |
|
518
Alta Equipment Group
ALTG
$246M
| $457K | ﹤0.01% |
34,715
-20,617
| -37% | -$271K |
|
519
ProShares Ultra Bloomberg Crude Oil
UCO
$362M
| $457K | ﹤0.01% |
15,095
-42,152
| -74% | -$1.28M |
|
520
Confluent
CFLT
$6.9B
| $456K | ﹤0.01% |
20,529
+15,088
| +277% | +$335K |
|
521
ADT
ADT
$7.05B
| $453K | ﹤0.01% |
49,975
-26,061
| -34% | -$236K |
|
|
RSX
522
DELISTED
VanEck Russia ETF
RSX
| $451K | ﹤0.01% |
79,920
| – | – |
|
|
LGF.B
523
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $446K | ﹤0.01% |
82,184
+66,466
| +423% | +$361K |
|
524
Pool Corp
POOL
$11.9B
| $445K | ﹤0.01% |
+1,473
| New | +$445K |
|
525
Amplify Transformational Data Sharing ETF
BLOK
$1.24B
| $444K | ﹤0.01% |
29,425
+25,912
| +738% | +$391K |
|