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 | |
|---|---|---|---|---|---|---|
5076
PUT
Maravai LifeSciences
MRVI
$996M
| $211K | ﹤0.01% |
6,000
+3,600
| +150% | +$121K |
|
5077
Precigen
PGEN
$2.12B
| $211K | ﹤0.01% |
100,045
+21,101
| +27% | +$51.4K |
|
5078
PUT
Palomar
PLMR
$3.61B
| $211K | ﹤0.01% |
+3,300
| New | +$187K |
|
5079
CALL
Splash Beverage Group
SBEV
$2.17M
| $211K | ﹤0.01% |
+466
| New | +$238K |
|
5080
Sundial Growers
SNDL
$325M
| $211K | ﹤0.01% |
30,241
+27,241
| +908% | +$151K |
|
|
SRC
5081
PUT
DELISTED
SPIRIT REALTY CAPITAL, INC.
SRC
| $211K | ﹤0.01% |
4,600
-4,300
| -48% | -$200K |
|
|
FMTX
5082
PUT
DELISTED
Forma Therapeutics Holdings, Inc. Common Stock
FMTX
| $211K | ﹤0.01% |
22,700
+22,200
| +4,440% | +$236K |
|
5083
CALL
Amcor
AMCR
$20.9B
| $210K | ﹤0.01% |
3,720
-3,820
| -51% | -$223K |
|
5084
Angi Inc
ANGI
$229M
| $210K | ﹤0.01% |
3,709
+2,637
| +246% | +$192K |
|
|
DESP
5085
DELISTED
Despegar.com
DESP
| $210K | ﹤0.01% |
17,246
-2,825
| -14% | -$31.8K |
|
5086
CALL
Houlihan Lokey
HLI
$8.97B
| $210K | ﹤0.01% |
2,400
-6,200
| -72% | -$638K |
|
5087
CALL
Kayne Anderson Energy Infrastructure Fund
KYN
$2.45B
| $210K | ﹤0.01% |
22,800
-3,900
| -15% | -$33.1K |
|
|
SNV
5088
PUT
DELISTED
Synovus
SNV
| $210K | ﹤0.01% |
4,300
+1,400
| +48% | +$70.9K |
|
5089
CALL
Post Holdings
POST
$4.21B
| $209K | ﹤0.01% |
3,700
-17,998
| -83% | -$1.26M |
|
5090
PUT
Viper Energy
VNOM
$8.48B
| $209K | ﹤0.01% |
7,100
-4,700
| -40% | -$130K |
|
5091
CALL
Flowserve
FLS
$9.63B
| $208K | ﹤0.01% |
5,800
+2,100
| +57% | +$68.6K |
|
5092
PUT
Helios Technologies
HLIO
$2.57B
| $208K | ﹤0.01% |
2,600
+200
| +8% | +$15.9K |
|
5093
CALL
Prosperity Bancshares
PB
$8.97B
| $208K | ﹤0.01% |
3,000
+2,400
| +400% | +$177K |
|
5094
Public Service Enterprise Group
PEG
$38.6B
| $208K | ﹤0.01% |
+2,980
| New | +$197K |
|
5095
Purple Innovation
PRPL
$31.6M
| $208K | ﹤0.01% |
1,428
+1,168
| +449% | +$230K |
|
5096
Regis Corp
RGS
$68.5M
| $208K | ﹤0.01% |
4,922
+2,837
| +136% | +$98.9K |
|
5097
CALL
Omeros
OMER
$863M
| $207K | ﹤0.01% |
34,500
-52,100
| -60% | -$325K |
|
|
DICE
5098
DELISTED
DICE Therapeutics, Inc. Common Stock
DICE
| $207K | ﹤0.01% |
+10,843
| New | +$194K |
|
5099
Alaska Air
ALK
$5.27B
| $206K | ﹤0.01% |
3,561
-8,254
| -70% | -$450K |
|
5100
Denison Mines
DNN
$2.64B
| $206K | ﹤0.01% |
129,226
+101,018
| +358% | +$143K |
|
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.