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 | |
|---|---|---|---|---|---|---|
601
Worthington Enterprises
WOR
$3.22B
| $430K | ﹤0.01% |
8,587
+8,522
| +13,111% | +$427K |
|
602
Modine Manufacturing
MOD
$7.95B
| $429K | ﹤0.01% |
5,599
+4,702
| +524% | +$360K |
|
603
iShares MSCI Turkey ETF
TUR
$163M
| $427K | ﹤0.01% |
13,029
+10,440
| +403% | +$342K |
|
604
NCR Voyix
VYX
$1.73B
| $426K | ﹤0.01% |
+43,754
| New | +$426K |
|
605
Cipher Mining
CIFR
$4.03B
| $425K | ﹤0.01% |
185,015
+86,507
| +88% | +$199K |
|
606
GraniteShares 2x Long COIN Daily ETF
CONL
$791M
| $425K | ﹤0.01% |
30,685
-10,949
| -26% | -$152K |
|
607
Turning Point Brands
TPB
$1.77B
| $423K | ﹤0.01% |
7,117
-1,146
| -14% | -$68.1K |
|
|
ITCI
608
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $423K | ﹤0.01% |
3,214
-5,546
| -63% | -$730K |
|
609
Enviri
NVRI
$959M
| $422K | ﹤0.01% |
63,593
+52,549
| +476% | +$349K |
|
610
Semler Scientific
SMLR
$415M
| $421K | ﹤0.01% |
11,657
+3,752
| +47% | +$136K |
|
611
CONMED
CNMD
$1.63B
| $420K | ﹤0.01% |
6,965
-8,375
| -55% | -$505K |
|
612
Evolv Technologies
EVLV
$1.37B
| $420K | ﹤0.01% |
134,794
-141,291
| -51% | -$440K |
|
613
Sociedad Química y Minera de Chile
SQM
$12B
| $418K | ﹤0.01% |
+10,523
| New | +$418K |
|
614
iShares US Real Estate ETF
IYR
$3.6B
| $417K | ﹤0.01% |
+4,360
| New | +$417K |
|
|
BPMC
615
DELISTED
Blueprint Medicines
BPMC
| $416K | ﹤0.01% |
4,704
-1,904
| -29% | -$168K |
|
|
ONIT
616
Onity Group Inc.
ONIT
$352M
| $415K | ﹤0.01% |
12,842
+6,334
| +97% | +$205K |
|
|
BERY
617
DELISTED
Berry Global Group, Inc.
BERY
| $415K | ﹤0.01% |
5,948
+4,986
| +518% | +$348K |
|
618
Equifax
EFX
$30.3B
| $411K | ﹤0.01% |
1,689
+964
| +133% | +$235K |
|
619
Chart Industries
GTLS
$8.95B
| $410K | ﹤0.01% |
2,841
-9,049
| -76% | -$1.31M |
|
620
T-Rex 2X Inverse Tesla Daily Target ETF
TSLZ
$70.3M
| $409K | ﹤0.01% |
97,459
+76,305
| +361% | +$320K |
|
621
Direxion Daily Financial Bear 3x Shares
FAZ
$113M
| $406K | ﹤0.01% |
+72,273
| New | +$406K |
|
|
ZH
622
Zhihu
ZH
$450M
| $406K | ﹤0.01% |
95,094
+81,672
| +608% | +$349K |
|
623
Cadence Design Systems
CDNS
$92.2B
| $405K | ﹤0.01% |
+1,595
| New | +$405K |
|
624
Mineralys Therapeutics
MLYS
$2.99B
| $405K | ﹤0.01% |
25,543
+25,206
| +7,480% | +$400K |
|
625
Rogers Corp
ROG
$1.44B
| $403K | ﹤0.01% |
5,977
-110
| -2% | -$7.42K |
|