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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
726
Columbia Banking Systems
COLB
$7.87B
| $392K | ﹤0.01% |
14,695
+13,206
| +887% | +$352K |
|
727
CyberArk
CYBR
$23.8B
| $391K | ﹤0.01% |
+1,786
| New | +$391K |
|
728
Sun Communities
SUI
$16.4B
| $391K | ﹤0.01% |
+2,927
| New | +$391K |
|
729
AvePoint
AVPT
$3.41B
| $390K | ﹤0.01% |
+47,537
| New | +$390K |
|
730
Qiagen
QGEN
$9.99B
| $385K | ﹤0.01% |
+8,372
| New | +$385K |
|
|
HIMX
731
Himax Technologies
HIMX
$1.45B
| $384K | ﹤0.01% |
63,316
+4,097
| +7% | +$24.8K |
|
732
HighPeak Energy
HPK
$914M
| $382K | ﹤0.01% |
26,892
-15,526
| -37% | -$221K |
|
733
NETGEAR
NTGR
$842M
| $382K | ﹤0.01% |
26,221
-6,458
| -20% | -$94.1K |
|
734
Allegion
ALLE
$15.2B
| $381K | ﹤0.01% |
3,015
+2,540
| +535% | +$321K |
|
|
AIV
735
Aimco
AIV
$1.08B
| $380K | ﹤0.01% |
48,625
+4,430
| +10% | +$34.6K |
|
736
Remitly
RELY
$3.84B
| $380K | ﹤0.01% |
+19,591
| New | +$380K |
|
737
Global Ship Lease
GSL
$1.14B
| $378K | ﹤0.01% |
19,075
+5,379
| +39% | +$107K |
|
738
Genius Sports
GENI
$3.01B
| $377K | ﹤0.01% |
61,088
+23,053
| +61% | +$142K |
|
739
Option Care Health
OPCH
$4.77B
| $377K | ﹤0.01% |
+11,193
| New | +$377K |
|
740
Microvision
MVIS
$346M
| $375K | ﹤0.01% |
141,018
-11,326
| -7% | -$30.1K |
|
|
NVEI
741
DELISTED
Nuvei Corporation Subordinate Voting Shares
NVEI
| $374K | ﹤0.01% |
14,259
+7,733
| +118% | +$203K |
|
742
ARS Pharmaceuticals
SPRY
$1B
| $373K | ﹤0.01% |
68,157
+42,006
| +161% | +$230K |
|
|
AMPS
743
DELISTED
Altus Power, Inc.
AMPS
| $373K | ﹤0.01% |
54,713
-9,692
| -15% | -$66.1K |
|
744
MBIA
MBI
$386M
| $372K | ﹤0.01% |
60,860
-14,428
| -19% | -$88.2K |
|
745
AGNC Investment
AGNC
$10.8B
| $371K | ﹤0.01% |
37,855
-183,847
| -83% | -$1.8M |
|
746
Costamare
CMRE
$1.47B
| $370K | ﹤0.01% |
35,623
-17,046
| -32% | -$177K |
|
747
Phreesia
PHR
$1.53B
| $369K | ﹤0.01% |
15,949
+14,001
| +719% | +$324K |
|
748
Direxion Daily S&P Biotech Bear 3X Shares
LABD
$68.8M
| $368K | ﹤0.01% |
+37,997
| New | +$368K |
|
749
Photronics
PLAB
$1.34B
| $367K | ﹤0.01% |
11,709
-6,340
| -35% | -$199K |
|
750
Vanguard Total International Bond ETF
BNDX
$68.6B
| $366K | ﹤0.01% |
7,417
+7,109
| +2,308% | +$351K |
|