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 |
Apple
AAPL
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
726
Meritage Homes
MTH
$5.65B
| $211K | ﹤0.01% |
6,930
-4,958
| -42% | -$151K |
|
727
Ardelyx
ARDX
$1.58B
| $209K | ﹤0.01% |
+27,939
| New | +$209K |
|
728
Saic
SAIC
$4.74B
| $209K | ﹤0.01% |
2,412
+1,629
| +208% | +$141K |
|
|
JNCE
729
DELISTED
Jounce Therapeutics, Inc. Common Stock
JNCE
| $209K | ﹤0.01% |
+24,027
| New | +$209K |
|
730
SiriusPoint
SPNT
$2.2B
| $208K | ﹤0.01% |
19,866
+14,426
| +265% | +$151K |
|
731
Enovis
ENOV
$1.78B
| $207K | ﹤0.01% |
3,313
+2,630
| +385% | +$164K |
|
732
Owens & Minor
OMI
$423M
| $207K | ﹤0.01% |
+40,084
| New | +$207K |
|
733
Pinduoduo
PDD
$179B
| $207K | ﹤0.01% |
5,498
-38,949
| -88% | -$1.47M |
|
|
AIOT
734
PowerFleet, Inc. Common Stock
AIOT
$663M
| $207K | ﹤0.01% |
+31,864
| New | +$207K |
|
735
Anavex Life Sciences
AVXL
$882M
| $206K | ﹤0.01% |
79,887
+19,283
| +32% | +$49.7K |
|
736
Regency Centers
REG
$13.1B
| $206K | ﹤0.01% |
3,272
+198
| +6% | +$12.5K |
|
|
AAWW
737
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
| $206K | ﹤0.01% |
+7,493
| New | +$206K |
|
|
GLOG
738
DELISTED
GASLOG LTD
GLOG
| $204K | ﹤0.01% |
20,881
+12,860
| +160% | +$126K |
|
739
Cullen/Frost Bankers
CFR
$8.26B
| $203K | ﹤0.01% |
+2,085
| New | +$203K |
|
|
MNDT
740
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $201K | ﹤0.01% |
12,197
-78,138
| -86% | -$1.29M |
|
741
Bank of New York Mellon
BK
$73.8B
| $200K | ﹤0.01% |
+3,986
| New | +$200K |
|
|
CIM
742
Chimera Investment
CIM
$1.17B
| $199K | ﹤0.01% |
+3,228
| New | +$199K |
|
743
Integra LifeSciences
IART
$1.21B
| $199K | ﹤0.01% |
+3,427
| New | +$199K |
|
744
Rambus
RMBS
$8B
| $199K | ﹤0.01% |
14,467
+682
| +5% | +$9.38K |
|
|
FOCS
745
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $199K | ﹤0.01% |
6,761
-28,471
| -81% | -$838K |
|
746
Cooper-Standard Automotive
CPS
$683M
| $196K | ﹤0.01% |
+5,924
| New | +$196K |
|
747
Upwork
UPWK
$2.13B
| $196K | ﹤0.01% |
+18,402
| New | +$196K |
|
|
CBD
748
DELISTED
Companhia Brasileira de Distribuicao
CBD
| $196K | ﹤0.01% |
9,007
+8,613
| +2,186% | +$187K |
|
749
Rayonier Advanced Materials
RYAM
$399M
| $195K | ﹤0.01% |
50,971
-35,861
| -41% | -$137K |
|
750
Sun Communities
SUI
$16.2B
| $195K | ﹤0.01% |
1,304
+1,182
| +969% | +$177K |
|