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 | |
|---|---|---|---|---|---|---|
4026
CALL
American Outdoor Brands
AOUT
$159M
| $429K | ﹤0.01% |
32,700
+26,700
| +445% | +$430K |
|
4027
Imperial Oil
IMO
$60.8B
| $429K | ﹤0.01% |
8,879
+5,583
| +169% | +$240K |
|
4028
CALL
Navient
NAVI
$822M
| $429K | ﹤0.01% |
25,200
-6,600
| -21% | -$121K |
|
4029
CALL
WEC Energy
WEC
$37B
| $429K | ﹤0.01% |
4,300
+1,600
| +59% | +$151K |
|
4030
Amplitude
AMPL
$1.16B
| $428K | ﹤0.01% |
+23,266
| New | +$707K |
|
4031
CAE Inc. Common Shares
CAE
$8.48B
| $428K | ﹤0.01% |
16,442
+1,365
| +9% | +$34.7K |
|
|
RETA
4032
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $427K | ﹤0.01% |
13,050
-24,100
| -65% | -$715K |
|
|
VRAY
4033
PUT
DELISTED
ViewRay, Inc.
VRAY
| $427K | ﹤0.01% |
109,100
+87,700
| +410% | +$373K |
|
|
CHNG
4034
CALL
DELISTED
Change Healthcare Inc. Common Stock
CHNG
| $427K | ﹤0.01% |
19,600
-1,300
| -6% | -$27K |
|
4035
Warrior Met Coal
HCC
$4.17B
| $426K | ﹤0.01% |
11,495
+8,651
| +304% | +$277K |
|
4036
PUT
Honda
HMC
$39.3B
| $426K | ﹤0.01% |
15,100
+12,900
| +586% | +$379K |
|
4037
PUT
Planet Labs
PL
$7.28B
| $426K | ﹤0.01% |
83,900
-39,100
| -32% | -$216K |
|
|
FIRY
4038
PUT
Firy Inc
FIRY
$154M
| $426K | ﹤0.01% |
7,100
+1,035
| +17% | +$84.4K |
|
|
SHLX
4039
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $426K | ﹤0.01% |
+29,995
| New | +$402K |
|
4040
CALL
Amylyx Pharmaceuticals
AMLX
$2.17B
| $425K | ﹤0.01% |
+33,100
| New | +$748K |
|
|
PBT
4041
PUT
Permian Basin Royalty Trust
PBT
$1.31B
| $425K | ﹤0.01% |
34,000
-137,400
| -80% | -$1.77M |
|
4042
PUT
Roper Technologies
ROP
$38.7B
| $425K | ﹤0.01% |
900
+300
| +50% | +$135K |
|
|
AEVA
4043
CALL
Aeva Technologies
AEVA
$1B
| $424K | ﹤0.01% |
19,600
+620
| +3% | +$15.2K |
|
4044
CALL
Bright Horizons
BFAM
$4.24B
| $424K | ﹤0.01% |
3,200
+3,000
| +1,500% | +$390K |
|
4045
Mattel
MAT
$4.49B
| $424K | ﹤0.01% |
19,119
-24,984
| -57% | -$571K |
|
|
ACCD
4046
PUT
DELISTED
Accolade Inc
ACCD
| $424K | ﹤0.01% |
24,200
+21,500
| +796% | +$396K |
|
4047
PUT
CleanSpark
CLSK
$3.46B
| $423K | ﹤0.01% |
34,200
-14,000
| -29% | -$129K |
|
4048
CALL
DTE Energy
DTE
$30.4B
| $423K | ﹤0.01% |
3,200
-600
| -16% | -$73.2K |
|
4049
PUT
Heron Therapeutics
HRTX
$92M
| $423K | ﹤0.01% |
74,000
+29,500
| +66% | +$216K |
|
4050
PUT
LSB Industries
LXU
$822M
| $423K | ﹤0.01% |
19,400
+13,830
| +248% | +$204K |
|
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.