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
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
951
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$585M
| $235K | ﹤0.01% |
10,747
+7,376
| +219% | +$161K |
|
952
Skillz
SKLZ
$110M
| $235K | ﹤0.01% |
589
-747
| -56% | -$298K |
|
953
Denny's
DENN
$270M
| $234K | ﹤0.01% |
15,960
+15,831
| +12,272% | +$232K |
|
|
GTM
954
ZoomInfo Technologies
GTM
$3.74B
| $234K | ﹤0.01% |
4,867
-12,416
| -72% | -$597K |
|
|
CURO
955
DELISTED
CURO Group Holdings Corp.
CURO
| $234K | ﹤0.01% |
+16,343
| New | +$234K |
|
|
NSTG
956
DELISTED
NanoString Technologies, Inc.
NSTG
| $234K | ﹤0.01% |
3,511
+1,595
| +83% | +$106K |
|
957
Churchill Downs
CHDN
$6.93B
| $230K | ﹤0.01% |
2,366
-1,774
| -43% | -$172K |
|
958
NOV
NOV
$4.94B
| $230K | ﹤0.01% |
+16,799
| New | +$230K |
|
959
Vontier
VNT
$6.34B
| $230K | ﹤0.01% |
+6,914
| New | +$230K |
|
|
MSP
960
DELISTED
Datto Holding Corp.
MSP
| $230K | ﹤0.01% |
+8,554
| New | +$230K |
|
961
BGC Group
BGC
$4.84B
| $229K | ﹤0.01% |
57,402
-33,625
| -37% | -$134K |
|
962
Commercial Metals
CMC
$6.63B
| $229K | ﹤0.01% |
+11,156
| New | +$229K |
|
963
WisdomTree Emerging Markets High Dividend Fund
DEM
$3.19B
| $229K | ﹤0.01% |
5,585
+5,152
| +1,190% | +$211K |
|
964
Tactile Systems Technology
TCMD
$306M
| $229K | ﹤0.01% |
+5,102
| New | +$229K |
|
965
CorMedix
CRMD
$977M
| $228K | ﹤0.01% |
30,783
+28,710
| +1,385% | +$213K |
|
966
Entergy
ETR
$40.1B
| $228K | ﹤0.01% |
4,572
+3,898
| +578% | +$194K |
|
967
Federal Realty Investment Trust
FRT
$8.78B
| $227K | ﹤0.01% |
+2,678
| New | +$227K |
|
968
Westwood Holdings Group
WHG
$163M
| $227K | ﹤0.01% |
+15,709
| New | +$227K |
|
|
RMO
969
DELISTED
Romeo Power, Inc.
RMO
| $226K | ﹤0.01% |
+10,079
| New | +$226K |
|
970
Jazz Pharmaceuticals
JAZZ
$7.79B
| $225K | ﹤0.01% |
1,367
-13,810
| -91% | -$2.27M |
|
971
KLA
KLAC
$127B
| $225K | ﹤0.01% |
+870
| New | +$225K |
|
|
ATRS
972
DELISTED
Antares Pharma, Inc.
ATRS
| $225K | ﹤0.01% |
56,473
+13,255
| +31% | +$52.8K |
|
973
Applied Optoelectronics
AAOI
$1.67B
| $224K | ﹤0.01% |
26,366
+8,519
| +48% | +$72.4K |
|
974
VanEck Rare Earth/Strategic Metals ETF
REMX
$732M
| $224K | ﹤0.01% |
3,417
+1,177
| +53% | +$77.2K |
|
|
REV
975
DELISTED
Revlon, Inc.
REV
| $224K | ﹤0.01% |
+18,910
| New | +$224K |
|