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 |
Apple
AAPL
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2126
PUT
Pinnacle West Capital
PNW
$12.9B
| $1.98M | ﹤0.01% |
25,300
+6,100
| +32% | +$437K |
|
|
SF
2127
PUT
Stifel
SF
$12.3B
| $1.98M | ﹤0.01% |
43,650
+39,450
| +939% | +$1.89M |
|
2128
CALL
Eastman Chemical
EMN
$7.8B
| $1.97M | ﹤0.01% |
17,600
-4,200
| -19% | -$492K |
|
|
BGFV
2129
CALL
DELISTED
Big 5 Sporting Goods
BGFV
| $1.97M | ﹤0.01% |
114,900
-119,500
| -51% | -$2.13M |
|
2130
Biogen
BIIB
$29.9B
| $1.97M | ﹤0.01% |
+9,350
| New | +$2.03M |
|
2131
PUT
Itaú Unibanco
ITUB
$91.3B
| $1.96M | ﹤0.01% |
405,727
+82,822
| +26% | +$349K |
|
2132
CALL
Artisan Partners
APAM
$2.79B
| $1.96M | ﹤0.01% |
49,900
+38,500
| +338% | +$1.56M |
|
2133
PUT
Realty Income
O
$61.2B
| $1.96M | ﹤0.01% |
33,000
+6,800
| +26% | +$462K |
|
2134
CALL
Beam Therapeutics
BEAM
$2.58B
| $1.96M | ﹤0.01% |
34,200
+31,800
| +1,325% | +$2.09M |
|
2135
PUT
Hecla Mining
HL
$10.2B
| $1.96M | ﹤0.01% |
298,200
-63,700
| -18% | -$369K |
|
2136
CALL
California Resources
CRC
$4.75B
| $1.95M | ﹤0.01% |
43,700
+27,100
| +163% | +$1.17M |
|
2137
PUT
Fox Class B
FOX
$20.7B
| $1.95M | ﹤0.01% |
50,500
+13,900
| +38% | +$517K |
|
2138
Huazhu Hotels Group
HTHT
$12.4B
| $1.95M | ﹤0.01% |
+59,185
| New | +$2.19M |
|
|
NEWR
2139
CALL
DELISTED
New Relic, Inc.
NEWR
| $1.95M | ﹤0.01% |
29,200
+1,000
| +4% | +$81.9K |
|
2140
Amplify Blockchain Technology ETF
BLOK
$1.1B
| $1.95M | ﹤0.01% |
57,057
+32,348
| +131% | +$1.1M |
|
|
GES
2141
PUT
DELISTED
Guess Inc
GES
| $1.95M | ﹤0.01% |
89,200
-18,900
| -17% | -$409K |
|
2142
Bausch Health
BHC
$1.65B
| $1.95M | ﹤0.01% |
85,237
-82,441
| -49% | -$2.02M |
|
2143
CALL
Lattice Semiconductor
LSCC
$17.6B
| $1.94M | ﹤0.01% |
31,900
-21,300
| -40% | -$1.28M |
|
2144
iShares MSCI Australia ETF
EWA
$1.34B
| $1.94M | ﹤0.01% |
+73,464
| New | +$1.79M |
|
2145
PUT
Vermilion Energy
VET
$1.73B
| $1.94M | ﹤0.01% |
92,200
+59,200
| +179% | +$1.05M |
|
2146
CALL
Iovance Biotherapeutics
IOVA
$2.23B
| $1.93M | ﹤0.01% |
116,200
+67,400
| +138% | +$1.04M |
|
|
EMBJ
2147
CALL
Embraer S.A. ADS
EMBJ
$11.6B
| $1.93M | ﹤0.01% |
152,900
+85,500
| +127% | +$1.21M |
|
2148
CALL
TG Therapeutics
TGTX
$8.58B
| $1.93M | ﹤0.01% |
202,700
+99,400
| +96% | +$1.15M |
|
2149
PUT
Allstate
ALL
$66.9B
| $1.93M | ﹤0.01% |
13,900
-52,700
| -79% | -$6.62M |
|
2150
CALL
Labcorp
LH
$24.3B
| $1.92M | ﹤0.01% |
8,497
-1,746
| -17% | -$411K |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.