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 | |
|---|---|---|---|---|---|---|
|
ASAP
801
DELISTED
Waitr Holdings Inc. Common Stock
ASAP
| $348K | ﹤0.01% |
6,277
+4,648
| +285% | +$258K |
|
|
FREE
802
DELISTED
Whole Earth Brands, Inc. Class A Common Stock
FREE
| $347K | ﹤0.01% |
31,903
+7,454
| +30% | +$81.1K |
|
803
Newmark Group
NMRK
$3.41B
| $346K | ﹤0.01% |
47,483
+47,383
| +47,383% | +$345K |
|
804
iShares MSCI Canada ETF
EWC
$3.27B
| $345K | ﹤0.01% |
+11,197
| New | +$345K |
|
805
SPDR S&P Bank ETF
KBE
$1.55B
| $345K | ﹤0.01% |
+8,264
| New | +$345K |
|
806
ProShares Ultra NASDAQ Biotechnology
BIB
$57.2M
| $344K | ﹤0.01% |
3,986
-1,458
| -27% | -$126K |
|
807
iShares Global Healthcare ETF
IXJ
$3.89B
| $344K | ﹤0.01% |
+4,500
| New | +$344K |
|
|
TCS
808
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
| $344K | ﹤0.01% |
2,404
-256
| -10% | -$36.6K |
|
809
Invesco NASDAQ Internet ETF
PNQI
$812M
| $343K | ﹤0.01% |
7,520
+6,525
| +656% | +$298K |
|
810
Champion Homes, Inc.
SKY
$4.28B
| $343K | ﹤0.01% |
11,097
-10,195
| -48% | -$315K |
|
|
MTOR
811
DELISTED
MERITOR, Inc.
MTOR
| $342K | ﹤0.01% |
12,285
+2,843
| +30% | +$79.1K |
|
812
NRG Energy
NRG
$30.6B
| $337K | ﹤0.01% |
+8,983
| New | +$337K |
|
813
Golar LNG
GLNG
$4.2B
| $336K | ﹤0.01% |
34,867
+17,271
| +98% | +$166K |
|
814
Malibu Boats
MBUU
$645M
| $332K | ﹤0.01% |
+5,327
| New | +$332K |
|
815
Open Lending Corp
LPRO
$261M
| $331K | ﹤0.01% |
+9,486
| New | +$331K |
|
816
Guardant Health
GH
$7.11B
| $329K | ﹤0.01% |
+2,553
| New | +$329K |
|
817
ProShares UltraPro Short S&P 500
SPXU
$505M
| $329K | ﹤0.01% |
+2,227
| New | +$329K |
|
|
NKLA
818
DELISTED
Nikola Corporation Common Stock
NKLA
| $329K | ﹤0.01% |
719
+601
| +509% | +$275K |
|
819
United Therapeutics
UTHR
$18.2B
| $326K | ﹤0.01% |
+2,151
| New | +$326K |
|
820
Vital Energy
VTLE
$642M
| $326K | ﹤0.01% |
16,572
+4,869
| +42% | +$95.8K |
|
|
PSXP
821
DELISTED
PHILLIPS 66 PARTNERS LP
PSXP
| $326K | ﹤0.01% |
+12,365
| New | +$326K |
|
|
MFA
822
MFA Financial
MFA
$1.05B
| $325K | ﹤0.01% |
20,927
-21,717
| -51% | -$337K |
|
|
AY
823
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $325K | ﹤0.01% |
+8,578
| New | +$325K |
|
824
Galicia Financial Group
GGAL
$5.02B
| $322K | ﹤0.01% |
36,863
+13,042
| +55% | +$114K |
|
825
VirnetX
VHC
$74.7M
| $322K | ﹤0.01% |
3,195
-214
| -6% | -$21.6K |
|