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 | |
|---|---|---|---|---|---|---|
1501
CALL
Steris
STE
$20.9B
| $3.72M | ﹤0.01% |
15,400
+15,300
| +15,300% | +$3.55M |
|
1502
PUT
Equinor
EQNR
$95.9B
| $3.72M | ﹤0.01% |
99,200
+93,500
| +1,640% | +$2.91M |
|
1503
BioNTech
BNTX
$22.6B
| $3.71M | ﹤0.01% |
21,765
+7,609
| +54% | +$1.28M |
|
1504
PUT
Camping World
CWH
$363M
| $3.71M | ﹤0.01% |
132,800
+29,400
| +28% | +$962K |
|
1505
PUT
NetApp
NTAP
$32.9B
| $3.7M | ﹤0.01% |
44,600
-48,800
| -52% | -$4.24M |
|
1506
CALL
Sarepta Therapeutics
SRPT
$1.66B
| $3.69M | ﹤0.01% |
47,300
-60,000
| -56% | -$4.59M |
|
1507
PUT
Kinross Gold
KGC
$28.5B
| $3.69M | ﹤0.01% |
627,400
+204,000
| +48% | +$1.14M |
|
1508
CALL
DaVita
DVA
$15.1B
| $3.68M | ﹤0.01% |
32,500
-900
| -3% | -$101K |
|
|
DM
1509
PUT
DELISTED
Desktop Metal, Inc.
DM
| $3.67M | ﹤0.01% |
77,480
-13,280
| -15% | -$562K |
|
|
BBBY
1510
PUT
Bed Bath & Beyond
BBBY
$473M
| $3.67M | ﹤0.01% |
91,740
+2,530
| +3% | +$112K |
|
1511
CALL
VeriSign
VRSN
$25.5B
| $3.67M | ﹤0.01% |
16,500
+1,700
| +11% | +$371K |
|
1512
Intuitive Surgical
ISRG
$121B
| $3.67M | ﹤0.01% |
12,153
-16,843
| -58% | -$4.92M |
|
1513
CALL
Black Stone Minerals
BSM
$3.11B
| $3.66M | ﹤0.01% |
272,200
+221,100
| +433% | +$2.64M |
|
1514
CALL
StoneCo
STNE
$2.62B
| $3.65M | ﹤0.01% |
312,400
-157,800
| -34% | -$2.06M |
|
1515
Vermilion Energy
VET
$1.73B
| $3.65M | ﹤0.01% |
173,632
+68,536
| +65% | +$1.22M |
|
1516
CALL
Applovin
APP
$132B
| $3.65M | ﹤0.01% |
66,200
+23,200
| +54% | +$1.48M |
|
1517
PUT
Incyte
INCY
$23.5B
| $3.65M | ﹤0.01% |
45,900
-26,100
| -36% | -$1.9M |
|
|
FOCS
1518
CALL
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $3.65M | ﹤0.01% |
79,700
+71,700
| +896% | +$3.6M |
|
1519
iShares MSCI EAFE ETF
EFA
$76.4B
| $3.64M | ﹤0.01% |
+49,476
| New | +$3.7M |
|
|
IRBT
1520
PUT
DELISTED
iRobot
IRBT
| $3.64M | ﹤0.01% |
57,400
-26,900
| -32% | -$1.7M |
|
1521
CALL
Packaging Corp of America
PKG
$22.7B
| $3.64M | ﹤0.01% |
23,300
+1,800
| +8% | +$263K |
|
1522
MongoDB
MDB
$24B
| $3.63M | ﹤0.01% |
8,191
-5,325
| -39% | -$2.08M |
|
1523
CALL
Box
BOX
$4.02B
| $3.63M | ﹤0.01% |
125,000
-51,900
| -29% | -$1.37M |
|
1524
CALL
Invesco CurrencyShares Euro Currency Trust
FXE
$331M
| $3.63M | ﹤0.01% |
35,400
-24,600
| -41% | -$2.56M |
|
|
ANAT
1525
CALL
DELISTED
American National Group, Inc. Common Stock
ANAT
| $3.63M | ﹤0.01% |
19,200
+3,200
| +20% | +$605K |
|
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.