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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
TA
926
DELISTED
TravelCenters of America LLC
TA
| $96K | ﹤0.01% |
3,162
-875
| -22% | -$26.6K |
|
|
CIR
927
DELISTED
CIRCOR International, Inc
CIR
| $95K | ﹤0.01% |
+1,605
| New | +$95K |
|
928
Manitowoc
MTW
$356M
| $95K | ﹤0.01% |
4,206
-4,030
| -49% | -$91K |
|
929
Teucrium Soybean Fund
SOYB
$25.6M
| $95K | ﹤0.01% |
5,291
+2,885
| +120% | +$51.8K |
|
930
McCormick & Company Non-Voting
MKC
$18B
| $94K | ﹤0.01% |
+1,936
| New | +$94K |
|
931
Sunstone Hotel Investors
SHO
$1.85B
| $94K | ﹤0.01% |
6,152
+5,553
| +927% | +$84.8K |
|
|
IVAC
932
DELISTED
Intevac Inc
IVAC
| $94K | ﹤0.01% |
7,569
-2,390
| -24% | -$29.7K |
|
|
CCLP
933
DELISTED
CSI Compressco LP
CCLP
| $94K | ﹤0.01% |
9,634
+507
| +6% | +$4.95K |
|
|
FRED
934
DELISTED
Fred's Inc
FRED
| $94K | ﹤0.01% |
7,240
-51,264
| -88% | -$666K |
|
|
ARRS
935
DELISTED
ARRIS International plc Ordinary Shares
ARRS
| $94K | ﹤0.01% |
3,577
-12,807
| -78% | -$337K |
|
|
SHLM
936
DELISTED
Schulman (A.) Inc
SHLM
| $93K | ﹤0.01% |
+2,971
| New | +$93K |
|
|
WR
937
DELISTED
Westar Energy Inc
WR
| $92K | ﹤0.01% |
+1,697
| New | +$92K |
|
938
Viper Energy
VNOM
$6.44B
| $91K | ﹤0.01% |
+5,099
| New | +$91K |
|
939
Independent Bank
INDB
$3.52B
| $90K | ﹤0.01% |
+1,389
| New | +$90K |
|
940
PhenixFIN
PFX
$96.4M
| $90K | ﹤0.01% |
591
+291
| +97% | +$44.3K |
|
941
PTC Therapeutics
PTCT
$4.74B
| $90K | ﹤0.01% |
9,192
-12,123
| -57% | -$119K |
|
|
ISBC
942
DELISTED
Investors Bancorp, Inc.
ISBC
| $90K | ﹤0.01% |
6,311
+1,216
| +24% | +$17.3K |
|
|
TSG
943
DELISTED
The Stars Group Inc.
TSG
| $90K | ﹤0.01% |
+5,305
| New | +$90K |
|
|
WGL
944
DELISTED
Wgl Holdings
WGL
| $90K | ﹤0.01% |
+1,091
| New | +$90K |
|
|
STS
945
DELISTED
Supreme Industries Inc Class A
STS
| $90K | ﹤0.01% |
+4,471
| New | +$90K |
|
|
BOBE
946
DELISTED
Bob Evans Farms, Inc.
BOBE
| $90K | ﹤0.01% |
1,400
-21,788
| -94% | -$1.4M |
|
947
Hexcel
HXL
$4.94B
| $89K | ﹤0.01% |
+1,639
| New | +$89K |
|
948
New Mountain Finance
NMFC
$1.03B
| $89K | ﹤0.01% |
5,974
-94
| -2% | -$1.4K |
|
949
WisdomTree
WT
$2.03B
| $89K | ﹤0.01% |
+9,802
| New | +$89K |
|
|
DGI
950
DELISTED
DigitalGlobe Inc.
DGI
| $88K | ﹤0.01% |
2,705
+2,703
| +135,150% | +$87.9K |
|