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 | |
|---|---|---|---|---|---|---|
2226
B2Gold
BTG
$5.16B
| $1.95M | ﹤0.01% |
723,639
+604,445
| +507% | +$1.63M |
|
2227
CALL
Wendy's
WEN
$1.33B
| $1.95M | ﹤0.01% |
115,200
+33,800
| +42% | +$614K |
|
|
JPGE
2228
PUT
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $1.95M | ﹤0.01% |
34,500
+9,300
| +37% | +$526K |
|
2229
PUT
Baker Hughes
BKR
$56.8B
| $1.95M | ﹤0.01% |
55,500
-67,700
| -55% | -$2.22M |
|
2230
PUT
CoreCivic
CXW
$3.1B
| $1.94M | ﹤0.01% |
149,700
+25,100
| +20% | +$367K |
|
2231
PUT
Patterson-UTI
PTEN
$3.87B
| $1.94M | ﹤0.01% |
186,900
-1,700
| -0.9% | -$18.6K |
|
2232
CALL
Invesco
IVZ
$13.3B
| $1.93M | ﹤0.01% |
129,200
-13,700
| -10% | -$211K |
|
|
SRG
2233
CALL
Seritage Growth Properties
SRG
$130M
| $1.93M | ﹤0.01% |
413,900
-101,700
| -20% | -$738K |
|
|
ITCI
2234
PUT
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $1.93M | ﹤0.01% |
28,200
-61,200
| -68% | -$4.24M |
|
2235
PUT
Royal Bank of Canada
RY
$291B
| $1.93M | ﹤0.01% |
18,100
+200
| +1% | +$20.6K |
|
2236
CALL
InMode
INMD
$872M
| $1.92M | ﹤0.01% |
105,300
-79,100
| -43% | -$1.45M |
|
2237
PUT
Freshworks
FRSH
$2.84B
| $1.92M | ﹤0.01% |
151,300
-33,600
| -18% | -$503K |
|
2238
CALL
Kanzhun
BZ
$6.89B
| $1.92M | ﹤0.01% |
102,000
+19,000
| +23% | +$383K |
|
2239
VeriSign
VRSN
$25.3B
| $1.92M | ﹤0.01% |
10,790
+8,250
| +325% | +$1.47M |
|
2240
CALL
Invesco DB Base Metals Fund
DBB
$306M
| $1.92M | ﹤0.01% |
83,100
+18,100
| +28% | +$366K |
|
2241
NextNav
NN
$1.7B
| $1.91M | ﹤0.01% |
236,000
+118,359
| +101% | +$935K |
|
2242
PUT
Canadian Imperial Bank of Commerce
CM
$107B
| $1.91M | ﹤0.01% |
40,200
+35,700
| +793% | +$1.73M |
|
2243
ICICI Bank
IBN
$106B
| $1.91M | ﹤0.01% |
+66,279
| New | +$1.78M |
|
2244
PUT
Universal Technical Institute
UTI
$2.08B
| $1.91M | ﹤0.01% |
121,400
-200
| -0.2% | -$2.99K |
|
2245
PUT
Structure Therapeutics
GPCR
$3.49B
| $1.9M | ﹤0.01% |
48,500
+21,300
| +78% | +$875K |
|
|
BRSL
2246
PUT
Brightstar Lottery PLC
BRSL
$1.91B
| $1.9M | ﹤0.01% |
93,100
-229,100
| -71% | -$4.68M |
|
2247
CALL
ING
ING
$93.8B
| $1.9M | ﹤0.01% |
111,100
+88,900
| +400% | +$1.51M |
|
2248
CALL
Hubbell
HUBB
$25.7B
| $1.9M | ﹤0.01% |
5,200
-1,500
| -22% | -$588K |
|
2249
Vanguard Real Estate ETF
VNQ
$39.9B
| $1.9M | ﹤0.01% |
22,685
+6,163
| +37% | +$509K |
|
2250
CALL
Valley National Bancorp
VLY
$7.93B
| $1.9M | ﹤0.01% |
272,200
-230,400
| -46% | -$1.68M |
|
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.