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 |
NVIDIA
NVDA
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
801
Capital Bancorp
CBNK
$556M
| $283K | ﹤0.01% |
+8,430
| New | +$283K |
|
802
Newell Brands
NWL
$2.54B
| $283K | ﹤0.01% |
52,408
-30,401
| -37% | -$164K |
|
803
Ryan Specialty Holdings
RYAN
$6.53B
| $283K | ﹤0.01% |
4,164
+1,411
| +51% | +$95.9K |
|
804
First Majestic Silver
AG
$4.61B
| $282K | ﹤0.01% |
34,107
-174,294
| -84% | -$1.44M |
|
805
Kinross Gold
KGC
$28B
| $282K | ﹤0.01% |
18,072
-18,668
| -51% | -$291K |
|
806
Customers Bancorp
CUBI
$2.35B
| $281K | ﹤0.01% |
4,788
-2,867
| -37% | -$168K |
|
807
iShares Europe ETF
IEV
$2.32B
| $280K | ﹤0.01% |
+4,440
| New | +$280K |
|
808
Sportsman's Warehouse
SPWH
$112M
| $280K | ﹤0.01% |
81,275
+72,704
| +848% | +$250K |
|
809
DoubleVerify
DV
$2.26B
| $279K | ﹤0.01% |
+18,697
| New | +$279K |
|
810
Unum
UNM
$12.6B
| $279K | ﹤0.01% |
3,462
-1,270
| -27% | -$102K |
|
|
CRWL
811
GraniteShares 2x Long CRWD Daily ETF
CRWL
$38.9M
| $279K | ﹤0.01% |
+6,607
| New | +$279K |
|
812
Invesco Mortgage Capital
IVR
$515M
| $278K | ﹤0.01% |
35,525
-5,376
| -13% | -$42.1K |
|
813
H.B. Fuller
FUL
$3.33B
| $276K | ﹤0.01% |
4,601
+4,226
| +1,127% | +$254K |
|
814
Ventyx Biosciences
VTYX
$169M
| $275K | ﹤0.01% |
128,904
+126,391
| +5,029% | +$270K |
|
|
ALMS
815
Alumis Inc. Common Stock
ALMS
$447M
| $275K | ﹤0.01% |
+91,698
| New | +$275K |
|
816
Evolus
EOLS
$475M
| $273K | ﹤0.01% |
29,750
+18,152
| +157% | +$167K |
|
|
MFA
817
MFA Financial
MFA
$1.05B
| $271K | ﹤0.01% |
28,702
+28,197
| +5,584% | +$266K |
|
818
Simon Property Group
SPG
$58.5B
| $269K | ﹤0.01% |
1,679
-9,483
| -85% | -$1.52M |
|
|
XXRP
819
Teucrium 2x Long Daily XRP ETF
XXRP
$392M
| $269K | ﹤0.01% |
+9,236
| New | +$269K |
|
820
Fastly
FSLY
$1.08B
| $265K | ﹤0.01% |
37,557
-53,869
| -59% | -$380K |
|
821
Global X Cybersecurity ETF
BUG
$1.12B
| $264K | ﹤0.01% |
7,131
+1,326
| +23% | +$49.1K |
|
822
HUB Group
HUBG
$2.21B
| $264K | ﹤0.01% |
+7,921
| New | +$264K |
|
823
Expedia Group
EXPE
$26.7B
| $263K | ﹤0.01% |
+1,564
| New | +$263K |
|
824
Prothena Corp
PRTA
$447M
| $262K | ﹤0.01% |
+43,264
| New | +$262K |
|
825
Brunswick
BC
$4.23B
| $260K | ﹤0.01% |
4,711
+2,025
| +75% | +$112K |
|