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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
826
Trump Media & Technology Group
DJT
$4.74B
| $294K | ﹤0.01% |
16,838
-7,821
| -32% | -$137K |
|
827
iShares MSCI Global Min Vol Factor ETF
ACWV
$3.31B
| $293K | ﹤0.01% |
+2,928
| New | +$293K |
|
828
M&T Bank
MTB
$31.1B
| $291K | ﹤0.01% |
+2,126
| New | +$291K |
|
829
Silicon Laboratories
SLAB
$4.4B
| $289K | ﹤0.01% |
2,188
-60
| -3% | -$7.93K |
|
830
SunCoke Energy
SXC
$655M
| $289K | ﹤0.01% |
+26,972
| New | +$289K |
|
831
A.O. Smith
AOS
$10.3B
| $286K | ﹤0.01% |
+3,473
| New | +$286K |
|
832
Amplify Alternative Harvest ETF
MJ
$172M
| $286K | ﹤0.01% |
7,385
+2,568
| +53% | +$99.5K |
|
833
RadNet
RDNT
$5.61B
| $286K | ﹤0.01% |
+8,238
| New | +$286K |
|
834
Ascendis Pharma
ASND
$11.8B
| $285K | ﹤0.01% |
+2,270
| New | +$285K |
|
835
SPDR S&P Insurance ETF
KIE
$833M
| $285K | ﹤0.01% |
+6,306
| New | +$285K |
|
836
Soho House & Co
SHCO
$1.73B
| $285K | ﹤0.01% |
40,165
+28,536
| +245% | +$202K |
|
837
Haleon
HLN
$43.9B
| $283K | ﹤0.01% |
34,457
-45,915
| -57% | -$377K |
|
|
BRDG
838
DELISTED
Bridge Investment Group
BRDG
| $282K | ﹤0.01% |
+28,935
| New | +$282K |
|
839
Casey's General Stores
CASY
$20.5B
| $282K | ﹤0.01% |
1,028
-323
| -24% | -$88.6K |
|
840
Cheesecake Factory
CAKE
$2.81B
| $280K | ﹤0.01% |
7,998
-46,706
| -85% | -$1.64M |
|
841
GeoPark
GPRK
$323M
| $280K | ﹤0.01% |
32,694
+31,592
| +2,867% | +$271K |
|
842
Beam Global
BEEM
$42.2M
| $279K | ﹤0.01% |
39,400
+31,190
| +380% | +$221K |
|
843
US Foods
USFD
$18B
| $279K | ﹤0.01% |
+6,146
| New | +$279K |
|
844
Vanguard High Dividend Yield ETF
VYM
$65.2B
| $277K | ﹤0.01% |
2,486
+212
| +9% | +$23.6K |
|
845
Stantec
STN
$12.7B
| $276K | ﹤0.01% |
+3,448
| New | +$276K |
|
846
iShares US Technology ETF
IYW
$24B
| $275K | ﹤0.01% |
+2,245
| New | +$275K |
|
847
PagSeguro Digital
PAGS
$2.78B
| $275K | ﹤0.01% |
22,086
-93,175
| -81% | -$1.16M |
|
848
Direxion Daily 20+ Year Treasury Bear 3X Shares
TMV
$162M
| $274K | ﹤0.01% |
+9,254
| New | +$274K |
|
849
Kennametal
KMT
$1.59B
| $273K | ﹤0.01% |
+10,596
| New | +$273K |
|
850
ProShares Ultra Gold
UGL
$746M
| $273K | ﹤0.01% |
+17,108
| New | +$273K |
|