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 |
Invesco QQQ Trust
QQQ
|
+$92M |
| 2 |
Walt Disney
DIS
|
+$25.4M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$12.8M |
| 4 |
Baidu
BIDU
|
+$12.2M |
| 5 |
RHT
Red Hat Inc
RHT
|
+$11.6M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$61.4M |
| 2 |
Amazon
AMZN
|
+$59.6M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$35.5M |
| 4 |
Apple
AAPL
|
+$19.6M |
| 5 |
Financial Select Sector SPDR Fund
XLF
|
+$18.2M |
Sector Composition
| 1 | Communication Services | 16.98% |
| 2 | Technology | 12.42% |
| 3 | Healthcare | 10.02% |
| 4 | Consumer Discretionary | 8.53% |
| 5 | Industrials | 6.01% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
826
SolarEdge
SEDG
$1.75B
| $120K | ﹤0.01% |
3,188
-11,917
| -79% | -$449K |
|
827
Amphenol
APH
$145B
| $119K | ﹤0.01% |
5,048
-3,304
| -40% | -$77.9K |
|
828
Black Stone Minerals
BSM
$2.61B
| $119K | ﹤0.01% |
6,765
+938
| +16% | +$16.5K |
|
829
CVR Partners
UAN
$903M
| $119K | ﹤0.01% |
3,008
+1,924
| +177% | +$76.1K |
|
830
Fossil Group
FOSL
$159M
| $118K | ﹤0.01% |
+8,658
| New | +$118K |
|
831
Hecla Mining
HL
$7.35B
| $118K | ﹤0.01% |
51,640
+33,954
| +192% | +$77.6K |
|
832
SSR Mining
SSRM
$4.46B
| $118K | ﹤0.01% |
+9,355
| New | +$118K |
|
833
Village Farms International
VFF
$284M
| $118K | ﹤0.01% |
+8,445
| New | +$118K |
|
|
KA
834
DELISTED
Kineta, Inc. Common Stock
KA
| $118K | ﹤0.01% |
+672
| New | +$118K |
|
835
Kinross Gold
KGC
$28B
| $117K | ﹤0.01% |
+34,239
| New | +$117K |
|
836
LeMaitre Vascular
LMAT
$2.1B
| $117K | ﹤0.01% |
+3,781
| New | +$117K |
|
|
GPOR
837
DELISTED
Gulfport Energy Corp.
GPOR
| $117K | ﹤0.01% |
+14,596
| New | +$117K |
|
838
Star Bulk Carriers
SBLK
$2.23B
| $116K | ﹤0.01% |
17,709
-40,781
| -70% | -$267K |
|
839
CommScope
COMM
$3.59B
| $114K | ﹤0.01% |
+5,271
| New | +$114K |
|
840
Hershey
HSY
$37.6B
| $114K | ﹤0.01% |
+998
| New | +$114K |
|
841
Noodles & Co
NDLS
$30.6M
| $114K | ﹤0.01% |
16,885
-124,620
| -88% | -$841K |
|
842
Cushman & Wakefield
CWK
$3.7B
| $112K | ﹤0.01% |
6,310
+6,210
| +6,210% | +$110K |
|
|
SCTL
843
DELISTED
Societal CDMO, Inc. Common Stock
SCTL
| $112K | ﹤0.01% |
21,363
+18,245
| +585% | +$95.7K |
|
|
CVET
844
DELISTED
Covetrus, Inc. Common Stock
CVET
| $112K | ﹤0.01% |
+3,539
| New | +$112K |
|
845
ATI
ATI
$10.5B
| $111K | ﹤0.01% |
+4,371
| New | +$111K |
|
846
CVR Energy
CVI
$3.21B
| $111K | ﹤0.01% |
+2,698
| New | +$111K |
|
847
Lennar Class A
LEN
$35.4B
| $111K | ﹤0.01% |
2,346
-20,336
| -90% | -$962K |
|
848
Dr. Reddy's Laboratories
RDY
$12.1B
| $111K | ﹤0.01% |
13,770
+2,805
| +26% | +$22.6K |
|
849
Sabre
SABR
$679M
| $111K | ﹤0.01% |
+5,209
| New | +$111K |
|
850
Zai Lab
ZLAB
$3.16B
| $111K | ﹤0.01% |
3,771
+2,764
| +274% | +$81.4K |
|