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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
476
BlackBerry
BB
$2.24B
| $650K | ﹤0.01% |
172,450
-11,940
| -6% | -$45K |
|
477
Vermilion Energy
VET
$1.16B
| $649K | ﹤0.01% |
80,178
+22,839
| +40% | +$185K |
|
478
Civitas Resources
CIVI
$3.1B
| $647K | ﹤0.01% |
+18,548
| New | +$647K |
|
479
Invesco DB US Dollar Index Bullish Fund
UUP
$162M
| $646K | ﹤0.01% |
+22,649
| New | +$646K |
|
480
Telesat
TSAT
$313M
| $643K | ﹤0.01% |
34,178
+13,032
| +62% | +$245K |
|
481
Viatris
VTRS
$12B
| $641K | ﹤0.01% |
73,690
-79,349
| -52% | -$690K |
|
482
CMS Energy
CMS
$21.3B
| $640K | ﹤0.01% |
+8,522
| New | +$640K |
|
|
PBT
483
Permian Basin Royalty Trust
PBT
$847M
| $631K | ﹤0.01% |
63,679
+41,817
| +191% | +$414K |
|
484
Qiagen
QGEN
$10B
| $631K | ﹤0.01% |
15,733
+5,093
| +48% | +$204K |
|
485
Tetra Tech
TTEK
$9.32B
| $627K | ﹤0.01% |
+21,451
| New | +$627K |
|
486
Sphere Entertainment
SPHR
$1.95B
| $622K | ﹤0.01% |
19,029
+17,602
| +1,233% | +$575K |
|
487
Alcoa
AA
$8.11B
| $620K | ﹤0.01% |
20,350
-78,866
| -79% | -$2.4M |
|
488
Allot
ALLT
$398M
| $617K | ﹤0.01% |
108,147
+18,936
| +21% | +$108K |
|
489
Lightspeed Commerce
LSPD
$1.59B
| $617K | ﹤0.01% |
70,520
-37,073
| -34% | -$324K |
|
490
Blue Bird Corp
BLBD
$1.85B
| $616K | ﹤0.01% |
19,045
+17,795
| +1,424% | +$576K |
|
491
Agilon Health
AGL
$468M
| $614K | ﹤0.01% |
142,028
+67,798
| +91% | +$293K |
|
|
TBCH
492
Turtle Beach Corporation Common Stock
TBCH
$296M
| $610K | ﹤0.01% |
+42,768
| New | +$610K |
|
|
LGF.A
493
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $606K | ﹤0.01% |
68,562
+3,318
| +5% | +$29.3K |
|
494
Hyatt Hotels
H
$13.6B
| $602K | ﹤0.01% |
+4,915
| New | +$602K |
|
495
Comfort Systems
FIX
$26.6B
| $601K | ﹤0.01% |
1,867
+787
| +73% | +$253K |
|
496
TransAlta
TAC
$3.76B
| $599K | ﹤0.01% |
64,105
+35,745
| +126% | +$334K |
|
497
Western Alliance Bancorporation
WAL
$9.81B
| $599K | ﹤0.01% |
7,799
-15,081
| -66% | -$1.16M |
|
498
Arvinas
ARVN
$587M
| $597K | ﹤0.01% |
85,082
+38,175
| +81% | +$268K |
|
499
ATI
ATI
$10.5B
| $597K | ﹤0.01% |
+11,488
| New | +$597K |
|
500
Alight
ALIT
$1.9B
| $596K | ﹤0.01% |
+100,666
| New | +$596K |
|