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
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
MESO
726
Mesoblast
MESO
$1.99B
| $290K | ﹤0.01% |
37,118
+6,646
| +22% | +$51.9K |
|
727
Meta Platforms (Facebook)
META
$1.89T
| $286K | ﹤0.01% |
1,000
-32,500
| -97% | -$9.3M |
|
728
Nokia
NOK
$24.6B
| $286K | ﹤0.01% |
68,810
+30,225
| +78% | +$126K |
|
729
10x Genomics
TXG
$1.57B
| $284K | ﹤0.01% |
+5,095
| New | +$284K |
|
730
Paylocity
PCTY
$9.34B
| $283K | ﹤0.01% |
1,534
+1,224
| +395% | +$226K |
|
731
Gartner
IT
$17.6B
| $280K | ﹤0.01% |
801
-1,722
| -68% | -$602K |
|
732
LiveRamp
RAMP
$1.74B
| $280K | ﹤0.01% |
9,812
+5,798
| +144% | +$165K |
|
733
Xometry
XMTR
$2.45B
| $280K | ﹤0.01% |
13,247
+12,139
| +1,096% | +$257K |
|
734
iRobot
IRBT
$107M
| $279K | ﹤0.01% |
+6,170
| New | +$279K |
|
735
Primerica
PRI
$8.74B
| $279K | ﹤0.01% |
1,413
+838
| +146% | +$165K |
|
736
Technology Select Sector SPDR Fund
XLK
$86.3B
| $278K | ﹤0.01% |
1,600
-121,707
| -99% | -$21.1M |
|
|
AMED
737
DELISTED
Amedisys
AMED
| $277K | ﹤0.01% |
+3,038
| New | +$277K |
|
|
NNDM
738
Nano Dimension
NNDM
$311M
| $273K | ﹤0.01% |
+94,752
| New | +$273K |
|
739
Meritage Homes
MTH
$5.59B
| $270K | ﹤0.01% |
+3,796
| New | +$270K |
|
740
Lear
LEA
$5.76B
| $269K | ﹤0.01% |
1,878
+75
| +4% | +$10.7K |
|
741
Simplify Interest Rate Hedge ETF
PFIX
$152M
| $268K | ﹤0.01% |
4,282
-2,399
| -36% | -$150K |
|
742
Beazer Homes USA
BZH
$758M
| $266K | ﹤0.01% |
9,435
+7,150
| +313% | +$202K |
|
743
Renaissance IPO ETF
IPO
$184M
| $266K | ﹤0.01% |
8,141
-43,685
| -84% | -$1.43M |
|
744
Chefs' Warehouse
CHEF
$2.63B
| $265K | ﹤0.01% |
7,424
-7,262
| -49% | -$259K |
|
745
uniQure
QURE
$959M
| $264K | ﹤0.01% |
+23,123
| New | +$264K |
|
746
W.R. Berkley
WRB
$27.4B
| $264K | ﹤0.01% |
+6,660
| New | +$264K |
|
747
Corteva
CTVA
$48.7B
| $262K | ﹤0.01% |
4,583
-871
| -16% | -$49.8K |
|
748
iShares Global Clean Energy ETF
ICLN
$1.58B
| $262K | ﹤0.01% |
+14,250
| New | +$262K |
|
749
Dave & Buster's
PLAY
$769M
| $261K | ﹤0.01% |
+5,872
| New | +$261K |
|
750
Stratasys
SSYS
$834M
| $260K | ﹤0.01% |
14,640
-13,089
| -47% | -$232K |
|