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 |
Amazon
AMZN
|
+$44.9M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$31.7M |
| 3 |
TWX
Time Warner Inc
TWX
|
+$26.1M |
| 4 |
Booking.com
BKNG
|
+$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$18.2M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$42.8M |
| 2 |
Amgen
AMGN
|
+$32.3M |
| 3 |
Baidu
BIDU
|
+$21.9M |
| 4 |
Micron Technology
MU
|
+$21.2M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$17.7M |
Sector Composition
| 1 | Consumer Discretionary | 21.41% |
| 2 | Technology | 19.71% |
| 3 | Communication Services | 17.68% |
| 4 | Healthcare | 6.08% |
| 5 | Financials | 5.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
PCOM
926
DELISTED
Points.com Inc. Common Shares
PCOM
| $80K | ﹤0.01% |
+7,088
| New | +$80K |
|
|
GOOS
927
Canada Goose Holdings
GOOS
$1.42B
| $79K | ﹤0.01% |
3,868
-17,506
| -82% | -$358K |
|
928
Insight Enterprises
NSIT
$3.96B
| $79K | ﹤0.01% |
+1,733
| New | +$79K |
|
929
Penumbra
PEN
$10.6B
| $79K | ﹤0.01% |
+884
| New | +$79K |
|
|
SDLP
930
DELISTED
SEADRILL PARTNERS LLC
SDLP
| $78K | ﹤0.01% |
2,120
+1,684
| +386% | +$62K |
|
|
MAG
931
DELISTED
MAG Silver
MAG
| $77K | ﹤0.01% |
6,913
+5,697
| +469% | +$63.5K |
|
|
AGEN
932
Agenus
AGEN
$154M
| $76K | ﹤0.01% |
888
+672
| +311% | +$57.5K |
|
933
iShares MSCI Singapore ETF
EWS
$816M
| $76K | ﹤0.01% |
+3,140
| New | +$76K |
|
934
Halozyme
HALO
$8.87B
| $76K | ﹤0.01% |
+4,404
| New | +$76K |
|
935
Hershey
HSY
$37.6B
| $76K | ﹤0.01% |
700
-14,819
| -95% | -$1.61M |
|
936
Ameren
AEE
$26.8B
| $75K | ﹤0.01% |
1,308
+864
| +195% | +$49.5K |
|
937
Kaiser Aluminum
KALU
$1.22B
| $75K | ﹤0.01% |
+736
| New | +$75K |
|
938
Veeco
VECO
$1.52B
| $75K | ﹤0.01% |
3,538
+2,239
| +172% | +$47.5K |
|
939
Nokia
NOK
$24.6B
| $74K | ﹤0.01% |
12,398
+7,506
| +153% | +$44.8K |
|
940
Travelzoo
TZOO
$103M
| $74K | ﹤0.01% |
8,637
-20,184
| -70% | -$173K |
|
941
Westlake Chemical Partners
WLKP
$769M
| $74K | ﹤0.01% |
3,270
+2,017
| +161% | +$45.6K |
|
942
AXIS Capital
AXS
$7.59B
| $73K | ﹤0.01% |
+1,279
| New | +$73K |
|
943
National CineMedia
NCMI
$423M
| $73K | ﹤0.01% |
1,059
+990
| +1,435% | +$68.2K |
|
|
NM
944
DELISTED
Navios Maritime Holdings Inc.
NM
| $73K | ﹤0.01% |
4,406
-530
| -11% | -$8.78K |
|
|
LKSD
945
DELISTED
LSC Communications, Inc.
LKSD
| $73K | ﹤0.01% |
4,427
+1,766
| +66% | +$29.1K |
|
946
Cohen & Steers
CNS
$3.63B
| $72K | ﹤0.01% |
+1,835
| New | +$72K |
|
947
RadNet
RDNT
$5.49B
| $72K | ﹤0.01% |
+6,269
| New | +$72K |
|
|
BBBY
948
DELISTED
Bed Bath & Beyond Inc
BBBY
| $72K | ﹤0.01% |
3,095
-3,878
| -56% | -$90.2K |
|
|
SIOX
949
DELISTED
Sio Gene Therapies Inc. Common Stock
SIOX
| $72K | ﹤0.01% |
1,323
-2,715
| -67% | -$148K |
|
950
Tile Shop Holdings
TTSH
$269M
| $71K | ﹤0.01% |
+5,614
| New | +$71K |
|