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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1151
Bally's
BALY
$520M
| $119K | ﹤0.01% |
8,537
+6,432
| +306% | +$89.7K |
|
1152
The ONE Group
STKS
$80.8M
| $119K | ﹤0.01% |
21,375
+9,064
| +74% | +$50.5K |
|
|
MORF
1153
DELISTED
Morphic Holding, Inc. Common Stock
MORF
| $119K | ﹤0.01% |
3,400
+3,213
| +1,718% | +$112K |
|
1154
Cavco Industries
CVCO
$4.46B
| $118K | ﹤0.01% |
298
-108
| -27% | -$42.8K |
|
1155
Delek Logistics
DKL
$2.45B
| $118K | ﹤0.01% |
2,894
+2,634
| +1,013% | +$107K |
|
1156
MINISO
MNSO
$7.57B
| $118K | ﹤0.01% |
5,800
-25,418
| -81% | -$517K |
|
1157
OSI Systems
OSIS
$4.08B
| $118K | ﹤0.01% |
828
-1,649
| -67% | -$235K |
|
1158
WisdomTree
WT
$2.13B
| $118K | ﹤0.01% |
12,869
+4,899
| +61% | +$44.9K |
|
1159
AAR Corp
AIR
$2.73B
| $117K | ﹤0.01% |
+1,967
| New | +$117K |
|
1160
PDF Solutions
PDFS
$863M
| $117K | ﹤0.01% |
+3,487
| New | +$117K |
|
|
VNET
1161
VNET Group
VNET
$2.68B
| $117K | ﹤0.01% |
+75,844
| New | +$117K |
|
1162
iShares Select U.S. REIT ETF
ICF
$1.9B
| $116K | ﹤0.01% |
+2,015
| New | +$116K |
|
1163
MasterCraft Boat Holdings
MCFT
$366M
| $116K | ﹤0.01% |
4,909
+3,842
| +360% | +$90.8K |
|
1164
Flux Power
FLUX
$43.3M
| $115K | ﹤0.01% |
25,990
+10,767
| +71% | +$47.6K |
|
1165
GraniteShares ETF Trust GraniteShares 2x Long META Daily ETF
FBL
$162M
| $114K | ﹤0.01% |
4,370
+4,245
| +3,396% | +$111K |
|
1166
Inogen
INGN
$238M
| $114K | ﹤0.01% |
14,154
-17,016
| -55% | -$137K |
|
1167
SLR Investment Corp
SLRC
$879M
| $114K | ﹤0.01% |
+7,477
| New | +$114K |
|
|
VRN
1168
DELISTED
Veren
VRN
| $113K | ﹤0.01% |
13,841
-72,715
| -84% | -$594K |
|
1169
MannKind Corp
MNKD
$1.72B
| $112K | ﹤0.01% |
+24,873
| New | +$112K |
|
1170
Universal Health Services
UHS
$12B
| $112K | ﹤0.01% |
618
+451
| +270% | +$81.7K |
|
|
OTLY
1171
Oatly Group
OTLY
$526M
| $111K | ﹤0.01% |
4,935
-3,303
| -40% | -$74.3K |
|
1172
Vanguard Short-Term Treasury ETF
VGSH
$22.8B
| $111K | ﹤0.01% |
1,916
-2,602
| -58% | -$151K |
|
1173
Jasper Therapeutics
JSPR
$42.1M
| $110K | ﹤0.01% |
3,758
+3,755
| +125,167% | +$110K |
|
1174
SPDR Portfolio S&P 500 ETF
SPLG
$86.9B
| $110K | ﹤0.01% |
1,793
-4,283
| -70% | -$263K |
|
1175
Idexx Laboratories
IDXX
$52.4B
| $109K | ﹤0.01% |
+202
| New | +$109K |
|