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 |
Microsoft
MSFT
|
+$101M |
| 2 |
NVIDIA
NVDA
|
+$66M |
| 3 |
Citigroup
C
|
+$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
+$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
+$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$64M |
| 3 |
Meta Platforms (Facebook)
META
|
+$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
+$34.3M |
| 5 |
PayPal
PYPL
|
+$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1076
Republic Services
RSG
$71.3B
| $116K | ﹤0.01% |
+858
| New | +$116K |
|
1077
Zions Bancorporation
ZION
$8.62B
| $116K | ﹤0.01% |
+2,283
| New | +$116K |
|
1078
Element Solutions
ESI
$6.36B
| $115K | ﹤0.01% |
+7,096
| New | +$115K |
|
1079
Euronet Worldwide
EEFT
$3.6B
| $114K | ﹤0.01% |
1,509
-6,586
| -81% | -$498K |
|
1080
iShare MSCI Eurozone ETF
EZU
$7.97B
| $114K | ﹤0.01% |
+3,590
| New | +$114K |
|
1081
iShares Russell 3000 ETF
IWV
$16.9B
| $114K | ﹤0.01% |
553
-750
| -58% | -$155K |
|
1082
Nerdy
NRDY
$158M
| $114K | ﹤0.01% |
54,295
+47,745
| +729% | +$100K |
|
1083
Intellia Therapeutics
NTLA
$1.23B
| $114K | ﹤0.01% |
+2,044
| New | +$114K |
|
1084
SPDR S&P Semiconductor ETF
XSD
$1.48B
| $114K | ﹤0.01% |
+754
| New | +$114K |
|
|
XXII
1085
22nd Century Group
XXII
$6.81M
| – | – |
0
| – | -$495K |
|
|
LICY
1086
DELISTED
Li-Cycle Holdings Corp.
LICY
| $114K | ﹤0.01% |
2,700
-74
| -3% | -$3.12K |
|
|
ALBO
1087
DELISTED
Albireo Pharma, Inc. Common Stock
ALBO
| $113K | ﹤0.01% |
5,865
+171
| +3% | +$3.3K |
|
1088
Amplify CWP Enhanced Dividend Income ETF
DIVO
$5.07B
| $112K | ﹤0.01% |
3,520
-5,056
| -59% | -$161K |
|
1089
Sabra Healthcare REIT
SBRA
$4.57B
| $112K | ﹤0.01% |
8,567
+8,113
| +1,787% | +$106K |
|
|
SBDS
1090
Solo Brands, Inc.
SBDS
$26M
| $112K | ﹤0.01% |
29,619
+5,839
| +25% | +$22.1K |
|
1091
Barnes & Noble Education
BNED
$277M
| $111K | ﹤0.01% |
465
+208
| +81% | +$49.7K |
|
1092
Crescent Energy
CRGY
$2.21B
| $111K | ﹤0.01% |
8,303
+3,422
| +70% | +$45.7K |
|
|
XIFR
1093
XPLR Infrastructure, LP
XIFR
$947M
| $111K | ﹤0.01% |
+1,537
| New | +$111K |
|
1094
Alpha Pro Tech
APT
$51.2M
| $110K | ﹤0.01% |
27,249
-17,443
| -39% | -$70.4K |
|
1095
Haemonetics
HAE
$2.51B
| $110K | ﹤0.01% |
1,495
-15,902
| -91% | -$1.17M |
|
|
PLYA
1096
DELISTED
Playa Hotels & Resorts
PLYA
| $110K | ﹤0.01% |
18,970
-2,653
| -12% | -$15.4K |
|
1097
Invesco S&P SmallCap Energy ETF
PSCE
$57.9M
| $110K | ﹤0.01% |
2,601
-541
| -17% | -$22.9K |
|
1098
Cambria Tail Risk ETF
TAIL
$93.8M
| $110K | ﹤0.01% |
6,531
+6,406
| +5,125% | +$108K |
|
1099
Build-A-Bear
BBW
$977M
| $109K | ﹤0.01% |
8,180
+5,706
| +231% | +$76K |
|
1100
Deluxe
DLX
$881M
| $109K | ﹤0.01% |
+6,573
| New | +$109K |
|