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
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ATCX
1776
DELISTED
Atlas Technical Consultants, Inc. Class A Common Stock
ATCX
| $20K | ﹤0.01% |
+3,951
| New | +$20K |
|
|
NPTN
1777
DELISTED
NEOPHOTONICS CORP
NPTN
| $20K | ﹤0.01% |
+1,333
| New | +$20K |
|
1778
Alector
ALEC
$278M
| $19K | ﹤0.01% |
1,901
-10,227
| -84% | -$102K |
|
1779
Apogee Enterprises
APOG
$903M
| $19K | ﹤0.01% |
509
+393
| +339% | +$14.7K |
|
|
BHR
1780
Braemar Hotels & Resorts
BHR
$203M
| $19K | ﹤0.01% |
4,617
-33,767
| -88% | -$139K |
|
|
CRESY
1781
Cresud
CRESY
$518M
| $19K | ﹤0.01% |
4,029
-14,566
| -78% | -$68.7K |
|
1782
Enlivex Therapeutics
ENLV
$25.5M
| $19K | ﹤0.01% |
+4,305
| New | +$19K |
|
1783
iShares MSCI Switzerland ETF
EWL
$1.33B
| $19K | ﹤0.01% |
467
+300
| +180% | +$12.2K |
|
1784
Gates Industrial
GTES
$6.6B
| $19K | ﹤0.01% |
+1,816
| New | +$19K |
|
1785
Ingles Markets
IMKTA
$1.32B
| $19K | ﹤0.01% |
228
-2,496
| -92% | -$208K |
|
1786
KBR
KBR
$6.36B
| $19K | ﹤0.01% |
394
-1,842
| -82% | -$88.8K |
|
1787
Pluri
PLUR
$38.9M
| $19K | ﹤0.01% |
+2,009
| New | +$19K |
|
|
PTPI
1788
DELISTED
Petros Pharmaceuticals
PTPI
| $19K | ﹤0.01% |
93
+53
| +133% | +$10.8K |
|
1789
Metallus
MTUS
$697M
| $19K | ﹤0.01% |
1,063
-30,217
| -97% | -$540K |
|
|
MTTR
1790
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $19K | ﹤0.01% |
5,415
-48,107
| -90% | -$169K |
|
|
SHCR
1791
DELISTED
Sharecare, Inc. Class A Common Stock
SHCR
| $19K | ﹤0.01% |
12,248
+943
| +8% | +$1.46K |
|
|
VLD
1792
DELISTED
Velo3D, Inc.
VLD
| $19K | ﹤0.01% |
+402
| New | +$19K |
|
1793
AMC Networks
AMCX
$357M
| $18K | ﹤0.01% |
+627
| New | +$18K |
|
1794
Brookfield Infrastructure
BIPC
$4.76B
| $18K | ﹤0.01% |
+445
| New | +$18K |
|
1795
Duolingo
DUOL
$14.1B
| $18K | ﹤0.01% |
216
-2,046
| -90% | -$171K |
|
1796
Freedom Holding
FRHC
$10.1B
| $18K | ﹤0.01% |
425
-274
| -39% | -$11.6K |
|
|
GOOD
1797
Gladstone Commercial Corp
GOOD
$608M
| $18K | ﹤0.01% |
976
+937
| +2,403% | +$17.3K |
|
1798
Immunocore
IMCR
$1.78B
| $18K | ﹤0.01% |
500
-186
| -27% | -$6.7K |
|
1799
Janus Henderson AAA CLO ETF
JAAA
$25B
| $18K | ﹤0.01% |
382
+282
| +282% | +$13.3K |
|
1800
Liquidity Services
LQDT
$849M
| $18K | ﹤0.01% |
1,343
+927
| +223% | +$12.4K |
|