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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
951
RCI Hospitality Holdings
RICK
$306M
| $322K | ﹤0.01% |
+4,143
| New | +$322K |
|
|
SFT
952
DELISTED
Shift Technologies, Inc. Class A Common Stock
SFT
| $322K | ﹤0.01% |
9,467
+5,719
| +153% | +$195K |
|
|
QTNT
953
DELISTED
Quotient Limited Ordinary Shares
QTNT
| $322K | ﹤0.01% |
3,115
+3,042
| +4,167% | +$314K |
|
954
HealthEquity
HQY
$7.96B
| $321K | ﹤0.01% |
+7,259
| New | +$321K |
|
955
Kimbell Royalty Partners
KRP
$1.28B
| $321K | ﹤0.01% |
23,614
-53,139
| -69% | -$722K |
|
956
Navios Maritime Partners
NMM
$1.4B
| $320K | ﹤0.01% |
12,760
-24,732
| -66% | -$620K |
|
|
BENE
957
DELISTED
Benessere Capital Acquisition Corp. Class A Common Stock
BENE
| $320K | ﹤0.01% |
+31,623
| New | +$320K |
|
|
PBCT
958
DELISTED
People's United Financial Inc
PBCT
| $319K | ﹤0.01% |
17,943
+12,968
| +261% | +$231K |
|
959
Playtika
PLTK
$1.38B
| $318K | ﹤0.01% |
18,447
-9,852
| -35% | -$170K |
|
960
Moderna
MRNA
$9.88B
| $317K | ﹤0.01% |
1,250
-25,831
| -95% | -$6.55M |
|
|
MNR
961
DELISTED
Monmouth Real Estate Investment Corp
MNR
| $317K | ﹤0.01% |
+15,101
| New | +$317K |
|
962
Fox Class B
FOX
$25.9B
| $316K | ﹤0.01% |
9,248
+7,341
| +385% | +$251K |
|
|
SEEL
963
DELISTED
Seelos Therapeutics, Inc. Common Stock
SEEL
| $315K | ﹤0.01% |
50
+41
| +456% | +$258K |
|
964
Seer Inc
SEER
$116M
| $313K | ﹤0.01% |
+13,732
| New | +$313K |
|
965
Amplify Travel Tech ETF
AWAY
$42.8M
| $312K | ﹤0.01% |
12,829
-15,482
| -55% | -$377K |
|
966
Direxion Daily MSCI Brazil Bull 2X Shares
BRZU
$136M
| $312K | ﹤0.01% |
4,706
+2,654
| +129% | +$176K |
|
967
Riot Platforms
RIOT
$5.78B
| $312K | ﹤0.01% |
14,000
-2,741
| -16% | -$61.1K |
|
968
Enbridge
ENB
$106B
| $311K | ﹤0.01% |
7,979
-13,058
| -62% | -$509K |
|
|
AZEK
969
DELISTED
The AZEK Co
AZEK
| $309K | ﹤0.01% |
+6,684
| New | +$309K |
|
970
Rogers Communications
RCI
$19.4B
| $308K | ﹤0.01% |
6,481
+424
| +7% | +$20.2K |
|
|
SGFY
971
DELISTED
Signify Health, Inc.
SGFY
| $308K | ﹤0.01% |
+21,668
| New | +$308K |
|
972
LivaNova
LIVN
$3.13B
| $307K | ﹤0.01% |
3,516
+3,046
| +648% | +$266K |
|
973
La-Z-Boy
LZB
$1.44B
| $307K | ﹤0.01% |
+8,456
| New | +$307K |
|
|
RNLX
974
DELISTED
Renalytix plc American Depositary Shares
RNLX
| $307K | ﹤0.01% |
+19,348
| New | +$307K |
|
975
CureVac
CVAC
$1.21B
| $306K | ﹤0.01% |
8,932
+8,266
| +1,241% | +$283K |
|