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 | |
|---|---|---|---|---|---|---|
2051
CALL
argenx
ARGX
$57.4B
| $2.11M | ﹤0.01% |
6,700
-4,800
| -42% | -$1.4M |
|
2052
CALL
LegalZoom.com
LZ
$1.23B
| $2.1M | ﹤0.01% |
148,800
+19,400
| +15% | +$292K |
|
|
NVO
2053
Novo Nordisk
NVO
$216B
| $2.1M | ﹤0.01% |
37,888
-10,408
| -22% | -$534K |
|
2054
PUT
BWX Technologies
BWXT
$16B
| $2.1M | ﹤0.01% |
39,000
-35,900
| -48% | -$1.77M |
|
2055
Global X Silver Miners ETF NEW
SIL
$4.08B
| $2.1M | ﹤0.01% |
57,759
+35,164
| +156% | +$1.25M |
|
2056
PUT
Concentrix
CNXC
$1.36B
| $2.1M | ﹤0.01% |
12,600
+6,600
| +110% | +$1.25M |
|
2057
CALL
EPR Properties
EPR
$4.86B
| $2.1M | ﹤0.01% |
38,300
+31,400
| +455% | +$1.52M |
|
2058
CALL
Casella Waste Systems
CWST
$5.69B
| $2.09M | ﹤0.01% |
23,900
-14,100
| -37% | -$1.12M |
|
2059
NCR Voyix
VYX
$1.06B
| $2.09M | ﹤0.01% |
+84,861
| New | +$2.08M |
|
2060
T-Mobile US
TMUS
$193B
| $2.09M | ﹤0.01% |
+16,291
| New | +$1.94M |
|
2061
PUT
Banco Bradesco
BBD
$38.1B
| $2.09M | ﹤0.01% |
495,583
-326,317
| -40% | -$1.2M |
|
|
HAPN
2062
PUT
Happen Inc
HAPN
$2.08B
| $2.09M | ﹤0.01% |
132,200
+7,600
| +6% | +$141K |
|
2063
CALL
TransDigm Group
TDG
$69.2B
| $2.08M | ﹤0.01% |
3,200
+1,500
| +88% | +$964K |
|
2064
AMN Healthcare
AMN
$1.28B
| $2.08M | ﹤0.01% |
19,955
-6,452
| -24% | -$670K |
|
2065
CALL
Kratos Defense & Security Solutions
KTOS
$8.88B
| $2.08M | ﹤0.01% |
101,600
+34,700
| +52% | +$633K |
|
2066
CALL
Synchrony
SYF
$23.7B
| $2.08M | ﹤0.01% |
59,700
-27,900
| -32% | -$1.17M |
|
2067
CALL
Interactive Brokers
IBKR
$40.9B
| $2.08M | ﹤0.01% |
126,000
-44,800
| -26% | -$771K |
|
|
TCDA
2068
CALL
DELISTED
Tricida, Inc. Common Stock
TCDA
| $2.08M | ﹤0.01% |
252,500
+197,900
| +362% | +$1.79M |
|
2069
Albertsons Companies
ACI
$5.4B
| $2.07M | ﹤0.01% |
62,162
+60,689
| +4,120% | +$1.89M |
|
2070
TJX Companies
TJX
$170B
| $2.07M | ﹤0.01% |
+34,111
| New | +$2.28M |
|
|
DVAX
2071
CALL
DELISTED
Dynavax Technologies
DVAX
| $2.06M | ﹤0.01% |
190,300
-20,100
| -10% | -$244K |
|
2072
CALL
Matsons
MATX
$6.37B
| $2.06M | ﹤0.01% |
17,100
+9,500
| +125% | +$957K |
|
2073
PUT
Dutch Bros
BROS
$8.78B
| $2.06M | ﹤0.01% |
37,300
-13,500
| -27% | -$689K |
|
2074
CALL
Ciena
CIEN
$55.3B
| $2.06M | ﹤0.01% |
34,000
-17,600
| -34% | -$1.15M |
|
2075
PUT
Amplify Online Retail ETF
IBUY
$106M
| $2.06M | ﹤0.01% |
60,500
+3,600
| +6% | +$256K |
|
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.