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 | |
|---|---|---|---|---|---|---|
5051
Bit Digital
BTBT
$428M
| $215K | ﹤0.01% |
59,838
+59,768
| +85,383% | +$251K |
|
5052
Duolingo
DUOL
$6.53B
| $215K | ﹤0.01% |
2,262
+1,795
| +384% | +$162K |
|
5053
CALL
Renaissance International IPO ETF
IPOS
$10.7M
| $215K | ﹤0.01% |
+5,100
| New | +$110K |
|
5054
iQIYI
IQ
$1.19B
| $215K | ﹤0.01% |
47,465
+47,165
| +15,722% | +$197K |
|
5055
CALL
Navitas Semiconductor
NVTS
$2.54B
| $215K | ﹤0.01% |
21,000
-34,500
| -62% | -$354K |
|
5056
PUT
Wendy's
WEN
$1.46B
| $215K | ﹤0.01% |
9,800
-206,000
| -95% | -$4.64M |
|
5057
PUT
Clean Energy Fuels
CLNE
$416M
| $214K | ﹤0.01% |
27,000
-274,400
| -91% | -$1.85M |
|
|
CVGW
5058
DELISTED
Calavo Growers
CVGW
| $214K | ﹤0.01% |
+5,896
| New | +$240K |
|
5059
Green Brick Partners
GRBK
$3.09B
| $214K | ﹤0.01% |
10,866
+7,926
| +270% | +$183K |
|
|
HOUS
5060
CALL
DELISTED
Anywhere Real Estate
HOUS
| $214K | ﹤0.01% |
13,700
+1,600
| +13% | +$26.7K |
|
5061
CALL
908 Devices
MASS
$312M
| $214K | ﹤0.01% |
11,300
+10,200
| +927% | +$175K |
|
|
UROY
5062
Uranium Royalty Corp
UROY
$478M
| $214K | ﹤0.01% |
54,684
+31,042
| +131% | +$118K |
|
|
AAMI
5063
Acadian Asset Management
AAMI
$2.88B
| $214K | ﹤0.01% |
8,865
+8,274
| +1,400% | +$197K |
|
5064
BigBear.ai
BBAI
$1.24B
| $213K | ﹤0.01% |
25,942
+6,548
| +34% | +$40K |
|
5065
PUT
Laureate Education
LAUR
$5.38B
| $213K | ﹤0.01% |
18,000
+13,600
| +309% | +$165K |
|
5066
Riot Platforms
RIOT
$6.9B
| $213K | ﹤0.01% |
10,100
-3,900
| -28% | -$70.4K |
|
5067
PUT
Global Net Lease
GNL
$1.87B
| $212K | ﹤0.01% |
13,500
+8,800
| +187% | +$129K |
|
5068
PUT
Hope Bancorp
HOPE
$1.8B
| $212K | ﹤0.01% |
+13,200
| New | +$218K |
|
5069
CALL
ICICI Bank
IBN
$107B
| $212K | ﹤0.01% |
11,200
-80,600
| -88% | -$1.61M |
|
5070
CALL
Krystal Biotech
KRYS
$10.7B
| $212K | ﹤0.01% |
3,200
-8,300
| -72% | -$518K |
|
|
PLG
5071
CALL
Platinum Group Metals
PLG
$160M
| $212K | ﹤0.01% |
+100,800
| New | +$195K |
|
5072
CALL
Arlo Technologies
ARLO
$1.58B
| $211K | ﹤0.01% |
23,900
+21,800
| +1,038% | +$200K |
|
5073
Clover Health Investments
CLOV
$2.23B
| $211K | ﹤0.01% |
59,581
+17,977
| +43% | +$52.1K |
|
5074
PUT
Vaalco Energy
EGY
$562M
| $211K | ﹤0.01% |
32,400
+25,000
| +338% | +$131K |
|
5075
CALL
IAMGOLD
IAG
$8.05B
| $211K | ﹤0.01% |
60,900
-86,700
| -59% | -$260K |
|
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.