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
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$93M |
| 2 |
Citigroup
C
|
+$74.8M |
| 3 |
Pinduoduo
PDD
|
+$50.7M |
| 4 |
Intel
INTC
|
+$47.1M |
| 5 |
Broadcom
AVGO
|
+$46.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$94.5M |
| 2 |
Pfizer
PFE
|
+$66.4M |
| 3 |
Boeing
BA
|
+$61.6M |
| 4 |
PayPal
PYPL
|
+$42.2M |
| 5 |
GE Aerospace
GE
|
+$42M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.53% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.21% |
| 4 | Financials | 0.2% |
| 5 | Materials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2076
CALL
Cincinnati Financial
CINF
$28.3B
| $2.29M | ﹤0.01% |
19,400
+800
| +4% | +$93.8K |
|
2077
CALL
Pegasystems
PEGA
$4.41B
| $2.29M | ﹤0.01% |
75,600
-53,600
| -41% | -$1.61M |
|
|
HIBB
2078
CALL
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $2.28M | ﹤0.01% |
26,200
+14,400
| +122% | +$1.19M |
|
|
VRNA
2079
PUT
DELISTED
Verona Pharma
VRNA
| $2.28M | ﹤0.01% |
157,900
+138,600
| +718% | +$2.02M |
|
2080
PUT
Icahn Enterprises
IEP
$5.17B
| $2.27M | ﹤0.01% |
137,900
-18,800
| -12% | -$319K |
|
2081
PUT
Organon & Co
OGN
$3.55B
| $2.26M | ﹤0.01% |
109,100
-72,000
| -40% | -$1.43M |
|
2082
CALL
Rapid7
RPD
$634M
| $2.26M | ﹤0.01% |
52,200
-80,100
| -61% | -$3.34M |
|
2083
PUT
Plains All American Pipeline
PAA
$17.4B
| $2.25M | ﹤0.01% |
126,300
+52,000
| +70% | +$908K |
|
|
BERY
2084
CALL
DELISTED
Berry Global Group, Inc.
BERY
| $2.25M | ﹤0.01% |
41,709
-871
| -2% | -$47.3K |
|
2085
Navios Maritime Partners
NMM
$2.25B
| $2.25M | ﹤0.01% |
44,100
+5,325
| +14% | +$247K |
|
2086
PUT
Wabtec
WAB
$51.1B
| $2.24M | ﹤0.01% |
14,200
-9,200
| -39% | -$1.47M |
|
2087
CALL
Tandem Diabetes Care
TNDM
$1.17B
| $2.24M | ﹤0.01% |
55,600
-27,000
| -33% | -$1.13M |
|
|
GES
2088
PUT
DELISTED
Guess Inc
GES
| $2.23M | ﹤0.01% |
109,600
-54,200
| -33% | -$1.37M |
|
2089
CALL
Roivant Sciences
ROIV
$25.2B
| $2.23M | ﹤0.01% |
211,500
+151,200
| +251% | +$1.66M |
|
2090
PUT
StoneCo
STNE
$2.62B
| $2.23M | ﹤0.01% |
186,400
-126,100
| -40% | -$1.86M |
|
2091
Radware
RDWR
$1.24B
| $2.23M | ﹤0.01% |
122,467
-51,406
| -30% | -$939K |
|
2092
CALL
ADMA Biologics
ADMA
$1.92B
| $2.23M | ﹤0.01% |
199,700
+77,800
| +64% | +$653K |
|
2093
CALL
PagerDuty
PD
$700M
| $2.23M | ﹤0.01% |
97,300
+56,500
| +138% | +$1.18M |
|
2094
PUT
Boston Beer
SAM
$1.88B
| $2.23M | ﹤0.01% |
7,300
-3,300
| -31% | -$945K |
|
2095
Planet Fitness
PLNT
$4.23B
| $2.22M | ﹤0.01% |
30,217
-41,035
| -58% | -$2.66M |
|
|
KEEL
2096
CALL
Keel Infrastructure Corp
KEEL
$2.57B
| $2.22M | ﹤0.01% |
864,300
-271,100
| -24% | -$583K |
|
|
CGC
2097
PUT
Canopy Growth
CGC
$375M
| $2.22M | ﹤0.01% |
344,300
-385,400
| -53% | -$3.32M |
|
|
SNV
2098
DELISTED
Synovus
SNV
| $2.22M | ﹤0.01% |
55,251
-2,521
| -4% | -$95.5K |
|
2099
Whirlpool
WHR
$2.42B
| $2.22M | ﹤0.01% |
+21,730
| New | +$2.12M |
|
2100
CALL
Ambarella
AMBA
$2.99B
| $2.22M | ﹤0.01% |
41,100
-18,600
| -31% | -$924K |
|
Similar funds
Simplex Trading's Q2 2024 Portfolio in Review
As of Q2 2024, Simplex Trading held 10,213 positions worth $162B, down 6.5% from $173B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading withdrew a net $19.2B in Q2 2024, closing 1,431 positions and reducing 4,061 holdings. Its most notable exit was Boeing, an estimated $61.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.53% of assets, up from 0.38% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in Citigroup worth $77M.
- Simplex Trading's largest Q2 2024 buy was Citigroup: 1,213,247 shares worth $77M.
- Simplex Trading added most to NVIDIA in Q2 2024, an estimated $93M increase.
- Simplex Trading's biggest Q2 2024 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $94.5M.
- Simplex Trading fully exited Boeing in Q2 2024, selling an estimated $61.6M.
- Simplex Trading's ten largest holdings make up 50% of its $162B portfolio in Q2 2024.
- Simplex Trading opened 1,358 new positions and closed 1,431 in Q2 2024.
- Simplex Trading's portfolio value fell 6.5% quarter-over-quarter to $162B.
Based on Simplex Trading's 13F filing for Q2 2024, filed 25 Jul 2024.