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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
Innoviz Technologies
INVZ
$347M
| $721K | ﹤0.01% |
285,373
+276,219
| +3,017% | +$698K |
|
527
Pitney Bowes
PBI
$1.96B
| $720K | ﹤0.01% |
163,806
+136,168
| +493% | +$599K |
|
528
Innovative Industrial Properties
IIPR
$1.58B
| $718K | ﹤0.01% |
7,126
-5,135
| -42% | -$517K |
|
529
Ternium
TX
$6.69B
| $715K | ﹤0.01% |
16,836
+5,825
| +53% | +$247K |
|
530
Equinox Gold
EQX
$8.4B
| $714K | ﹤0.01% |
146,077
+57,763
| +65% | +$282K |
|
531
Comstock Resources
CRK
$4.65B
| $713K | ﹤0.01% |
80,669
+52,167
| +183% | +$461K |
|
|
GTHX
532
DELISTED
G1 Therapeutics, Inc. Common Stock
GTHX
| $712K | ﹤0.01% |
233,626
+216,146
| +1,237% | +$659K |
|
533
Ameriprise Financial
AMP
$46.4B
| $711K | ﹤0.01% |
+1,874
| New | +$711K |
|
534
Amphenol
APH
$145B
| $706K | ﹤0.01% |
14,264
-1,390
| -9% | -$68.8K |
|
535
Pinnacle West Capital
PNW
$10.5B
| $706K | ﹤0.01% |
9,828
+7,220
| +277% | +$519K |
|
536
Joby Aviation
JOBY
$11.4B
| $701K | ﹤0.01% |
+105,513
| New | +$701K |
|
537
Vital Energy
VTLE
$647M
| $698K | ﹤0.01% |
15,351
-7,953
| -34% | -$362K |
|
538
Bloom Energy
BE
$14.7B
| $695K | ﹤0.01% |
+46,997
| New | +$695K |
|
539
Thomson Reuters
TRI
$76.8B
| $691K | ﹤0.01% |
4,730
-5,679
| -55% | -$830K |
|
540
Tiptree Inc
TIPT
$882M
| $689K | ﹤0.01% |
36,379
+24,271
| +200% | +$460K |
|
541
Coupang
CPNG
$58.6B
| $687K | ﹤0.01% |
42,489
-7,597
| -15% | -$123K |
|
542
UFP Industries
UFPI
$5.84B
| $686K | ﹤0.01% |
5,464
+5,244
| +2,384% | +$658K |
|
543
Wyndham Hotels & Resorts
WH
$6.43B
| $686K | ﹤0.01% |
+8,542
| New | +$686K |
|
544
Guardant Health
GH
$7.05B
| $681K | ﹤0.01% |
25,191
+10,218
| +68% | +$276K |
|
545
Steris
STE
$24B
| $681K | ﹤0.01% |
3,100
+2,738
| +756% | +$601K |
|
546
First Horizon
FHN
$11.5B
| $674K | ﹤0.01% |
47,641
+3,286
| +7% | +$46.5K |
|
547
Mettler-Toledo International
MTD
$25.8B
| $674K | ﹤0.01% |
+556
| New | +$674K |
|
548
Diageo
DEO
$57.9B
| $672K | ﹤0.01% |
+4,618
| New | +$672K |
|
549
Anavex Life Sciences
AVXL
$763M
| $671K | ﹤0.01% |
+72,136
| New | +$671K |
|
550
Civitas Resources
CIVI
$3.13B
| $671K | ﹤0.01% |
9,818
-3,801
| -28% | -$260K |
|