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
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1026
TrueCar
TRUE
$173M
| $97K | ﹤0.01% |
+20,425
| New | +$97K |
|
1027
iShares Gold Trust
IAU
$53.2B
| $96K | ﹤0.01% |
3,318
-5,550
| -63% | -$161K |
|
|
TOO
1028
DELISTED
Teekay Offshore Partners L.P.
TOO
| $96K | ﹤0.01% |
62,741
-3,000
| -5% | -$4.59K |
|
1029
ProShares UltraShort Dow 30
DXD
$52.7M
| $95K | ﹤0.01% |
844
+497
| +143% | +$55.9K |
|
1030
Iridium Communications
IRDM
$1.88B
| $95K | ﹤0.01% |
+3,862
| New | +$95K |
|
1031
iShares Russell 1000 ETF
IWB
$44.3B
| $95K | ﹤0.01% |
+535
| New | +$95K |
|
1032
Onto Innovation
ONTO
$5.39B
| $95K | ﹤0.01% |
2,603
+2,347
| +917% | +$85.7K |
|
1033
Future Fuel
FF
$169M
| $94K | ﹤0.01% |
7,589
+7,057
| +1,327% | +$87.4K |
|
1034
Vistra
VST
$71B
| $94K | ﹤0.01% |
+4,124
| New | +$94K |
|
1035
Viatris
VTRS
$12B
| $94K | ﹤0.01% |
+4,715
| New | +$94K |
|
|
GPX
1036
DELISTED
GP Strategies Corp.
GPX
| $94K | ﹤0.01% |
+7,112
| New | +$94K |
|
1037
Topgolf Callaway Brands
MODG
$1.73B
| $93K | ﹤0.01% |
4,401
-13,289
| -75% | -$281K |
|
|
IMGN
1038
DELISTED
Immunogen Inc
IMGN
| $93K | ﹤0.01% |
18,388
+17,704
| +2,588% | +$89.5K |
|
|
HIBB
1039
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $93K | ﹤0.01% |
3,321
+892
| +37% | +$25K |
|
1040
Bain Capital Specialty
BCSF
$1.01B
| $92K | ﹤0.01% |
+4,782
| New | +$92K |
|
1041
Coherus Oncology, Inc. Common Stock
CHRS
$152M
| $92K | ﹤0.01% |
5,138
-11,748
| -70% | -$210K |
|
1042
Civitas Resources
CIVI
$3.04B
| $92K | ﹤0.01% |
+3,974
| New | +$92K |
|
1043
Essent Group
ESNT
$6.24B
| $92K | ﹤0.01% |
+1,783
| New | +$92K |
|
1044
MasterCraft Boat Holdings
MCFT
$367M
| $92K | ﹤0.01% |
5,878
-18,469
| -76% | -$289K |
|
1045
Harrow
HROW
$1.45B
| $91K | ﹤0.01% |
11,808
-68,205
| -85% | -$526K |
|
1046
Smith Micro Software
SMSI
$15M
| $91K | ﹤0.01% |
2,887
-4,012
| -58% | -$126K |
|
1047
VICI Properties
VICI
$35.5B
| $91K | ﹤0.01% |
+3,564
| New | +$91K |
|
1048
Vanguard Mid-Cap ETF
VO
$87.8B
| $91K | ﹤0.01% |
+513
| New | +$91K |
|
|
DSL
1049
DoubleLine Income Solutions Fund
DSL
$1.44B
| $90K | ﹤0.01% |
+4,591
| New | +$90K |
|
1050
Essex Property Trust
ESS
$17.1B
| $90K | ﹤0.01% |
300
-372
| -55% | -$112K |
|