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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
NGD
826
New Gold Inc
NGD
$5.18B
| $240K | ﹤0.01% |
83,467
+18,425
| +28% | +$53K |
|
827
FreightCar America
RAIL
$161M
| $240K | ﹤0.01% |
22,333
+11,444
| +105% | +$123K |
|
828
Olaplex Holdings
OLPX
$947M
| $239K | ﹤0.01% |
101,822
+47,063
| +86% | +$110K |
|
829
PPL Corp
PPL
$26.5B
| $238K | ﹤0.01% |
+7,197
| New | +$238K |
|
|
RDNW
830
RideNow Group, Inc. Class B Common Stock
RDNW
$162M
| $238K | ﹤0.01% |
49,765
+46,481
| +1,415% | +$222K |
|
831
TE Connectivity
TEL
$63B
| $238K | ﹤0.01% |
+1,579
| New | +$238K |
|
|
ALTR
832
DELISTED
Altair Engineering Inc. Class A Common Stock
ALTR
| $238K | ﹤0.01% |
2,492
+2,077
| +500% | +$198K |
|
833
iShares 10-20 Year Treasury Bond ETF
TLH
$11.6B
| $237K | ﹤0.01% |
+2,171
| New | +$237K |
|
834
CONMED
CNMD
$1.66B
| $235K | ﹤0.01% |
+3,279
| New | +$235K |
|
835
iShare MSCI Eurozone ETF
EZU
$7.97B
| $235K | ﹤0.01% |
+4,514
| New | +$235K |
|
|
ITCI
836
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $235K | ﹤0.01% |
3,220
-6,210
| -66% | -$453K |
|
837
SPDR Bloomberg High Yield Bond ETF
JNK
$8.12B
| $234K | ﹤0.01% |
2,403
-2,968
| -55% | -$289K |
|
838
Kodak
KODK
$482M
| $234K | ﹤0.01% |
49,736
-50,763
| -51% | -$239K |
|
839
Real Brokerage
REAX
$1.07B
| $234K | ﹤0.01% |
42,332
+35,954
| +564% | +$199K |
|
840
SIGA Technologies
SIGA
$645M
| $234K | ﹤0.01% |
34,797
-92,015
| -73% | -$619K |
|
841
iShares Russell 3000 ETF
IWV
$16.9B
| $233K | ﹤0.01% |
716
+422
| +144% | +$137K |
|
842
CryoPort
CYRX
$494M
| $232K | ﹤0.01% |
28,666
+26,576
| +1,272% | +$215K |
|
843
ICL Group
ICL
$8.03B
| $232K | ﹤0.01% |
54,762
-202,118
| -79% | -$856K |
|
844
Ingredion
INGR
$8.12B
| $232K | ﹤0.01% |
+1,694
| New | +$232K |
|
845
ZTO Express
ZTO
$15.4B
| $232K | ﹤0.01% |
9,406
-52,167
| -85% | -$1.29M |
|
846
Mr. Cooper
COOP
$14.9B
| $231K | ﹤0.01% |
2,511
+1,698
| +209% | +$156K |
|
847
Jazz Pharmaceuticals
JAZZ
$7.8B
| $230K | ﹤0.01% |
2,071
-1,522
| -42% | -$169K |
|
848
Genco Shipping & Trading
GNK
$757M
| $229K | ﹤0.01% |
11,753
+9,238
| +367% | +$180K |
|
849
Radware
RDWR
$1.12B
| $229K | ﹤0.01% |
10,290
-112,177
| -92% | -$2.5M |
|
850
Rayonier Advanced Materials
RYAM
$411M
| $227K | ﹤0.01% |
26,631
-56,827
| -68% | -$484K |
|