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 | |
|---|---|---|---|---|---|---|
|
PIPP
2201
CALL
DELISTED
Pine Island Acquisition Corp.
PIPP
| $1.83M | ﹤0.01% |
186,300
-113,800
| -38% | -$1.12M |
|
2202
CALL
Grocery Outlet
GO
$891M
| $1.83M | ﹤0.01% |
55,800
+40,900
| +274% | +$1.14M |
|
2203
Amplify Alternative Harvest ETF
MJ
$101M
| $1.83M | ﹤0.01% |
14,687
-109
| -0.7% | -$13.1K |
|
2204
CALL
Intrepid Potash
IPI
$460M
| $1.82M | ﹤0.01% |
22,200
+15,100
| +213% | +$832K |
|
|
GOGL
2205
PUT
DELISTED
Golden Ocean Group
GOGL
| $1.82M | ﹤0.01% |
146,900
+85,500
| +139% | +$929K |
|
2206
PUT
Ambev
ABEV
$47.3B
| $1.82M | ﹤0.01% |
562,400
+444,000
| +375% | +$1.24M |
|
2207
PUT
Gerdau
GGB
$9.44B
| $1.81M | ﹤0.01% |
355,320
+97,398
| +38% | +$418K |
|
2208
First Majestic Silver
AG
$8.05B
| $1.81M | ﹤0.01% |
137,722
-28,030
| -17% | -$328K |
|
2209
CALL
Healthcare Realty
HR
$7.42B
| $1.81M | ﹤0.01% |
57,800
-415,500
| -88% | -$13.1M |
|
|
RENT
2210
CALL
Rent the Runway
RENT
$101M
| $1.81M | ﹤0.01% |
13,140
+10,835
| +470% | +$1.27M |
|
2211
PUT
Protagonist Therapeutics
PTGX
$8.75B
| $1.81M | ﹤0.01% |
76,400
+76,200
| +38,100% | +$2.15M |
|
2212
PUT
Snap-on
SNA
$20.9B
| $1.81M | ﹤0.01% |
8,800
+3,100
| +54% | +$654K |
|
|
MTBL
2213
PUT
DELISTED
Moatable, Inc. American Depositary Share (each representing forty-five (45) Class A Ordinary Shares)
MTBL
| $1.8M | ﹤0.01% |
824,000
+167,000
| +25% | +$353K |
|
|
ROIC
2214
CALL
DELISTED
Retail Opportunity Investments Corp.
ROIC
| $1.8M | ﹤0.01% |
92,900
-74,300
| -44% | -$1.39M |
|
|
RADA
2215
CALL
DELISTED
Rada Electronic Industries Ltd
RADA
| $1.8M | ﹤0.01% |
129,100
+103,400
| +402% | +$1.18M |
|
2216
PUT
Copart
CPRT
$25.9B
| $1.79M | ﹤0.01% |
57,200
+2,000
| +4% | +$63.5K |
|
2217
Suncor Energy
SU
$77.7B
| $1.79M | ﹤0.01% |
55,078
-60,350
| -52% | -$1.79M |
|
2218
PUT
East-West Bancorp
EWBC
$17.9B
| $1.79M | ﹤0.01% |
22,700
+22,500
| +11,250% | +$1.9M |
|
2219
CALL
Atmos Energy
ATO
$29.9B
| $1.79M | ﹤0.01% |
15,000
-3,100
| -17% | -$339K |
|
2220
PUT
First Trust Consumer Discretionary AlphaDEX Fund
FXD
$263M
| $1.79M | ﹤0.01% |
25,400
-40,000
| -61% | -$2.27M |
|
2221
PUT
Merit Medical Systems
MMSI
$4.43B
| $1.79M | ﹤0.01% |
+26,900
| New | +$1.62M |
|
|
PTR
2222
PUT
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $1.79M | ﹤0.01% |
35,400
+25,300
| +250% | +$1.29M |
|
2223
CALL
Bruker
BRKR
$9.2B
| $1.79M | ﹤0.01% |
27,800
+26,300
| +1,753% | +$1.8M |
|
2224
PUT
Gen Digital
GEN
$15.6B
| $1.79M | ﹤0.01% |
67,400
+23,700
| +54% | +$652K |
|
2225
CALL
Repligen
RGEN
$7.44B
| $1.79M | ﹤0.01% |
9,500
+5,500
| +138% | +$1.04M |
|
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.