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 | |
|---|---|---|---|---|---|---|
4701
Viasat
VSAT
$9.67B
| $269K | ﹤0.01% |
5,532
-9,735
| -64% | -$448K |
|
|
FLG
4702
Flagstar Bank National Association
FLG
$5.87B
| $269K | ﹤0.01% |
8,395
+3,883
| +86% | +$137K |
|
|
CTIC
4703
PUT
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
| $269K | ﹤0.01% |
57,700
+57,100
| +9,517% | +$170K |
|
4704
Ardelyx
ARDX
$1.24B
| $268K | ﹤0.01% |
250,592
+44,928
| +22% | +$40.1K |
|
|
PPBI
4705
CALL
DELISTED
Pacific Premier Bancorp
PPBI
| $268K | ﹤0.01% |
7,600
+7,100
| +1,420% | +$276K |
|
4706
CALL
The Beachbody Company
BODI
$71.8M
| $268K | ﹤0.01% |
2,368
+22
| +0.9% | +$2.24K |
|
4707
Melco Resorts & Entertainment
MLCO
$2.21B
| $267K | ﹤0.01% |
+35,054
| New | +$337K |
|
4708
Zymeworks
ZYME
$1.62B
| $267K | ﹤0.01% |
+40,844
| New | +$364K |
|
|
AJRD
4709
CALL
DELISTED
Aerojet Rocketdyne Holdings
AJRD
| $267K | ﹤0.01% |
6,800
-16,500
| -71% | -$658K |
|
4710
PUT
Arch Capital
ACGL
$35.7B
| $266K | ﹤0.01% |
5,500
-3,500
| -39% | -$163K |
|
4711
Newegg Commerce
NEGG
$273M
| $266K | ﹤0.01% |
2,106
+2,096
| +20,960% | +$271K |
|
4712
CALL
Talos Energy
TALO
$2.38B
| $266K | ﹤0.01% |
16,900
+15,500
| +1,107% | +$205K |
|
|
CDMO
4713
CALL
DELISTED
Avid Bioservices, Inc. Common Stock
CDMO
| $266K | ﹤0.01% |
13,100
+6,000
| +85% | +$122K |
|
|
ECOM
4714
PUT
DELISTED
CHANNELADVISOR CORPORATION
ECOM
| $266K | ﹤0.01% |
16,100
-3,500
| -18% | -$66.4K |
|
4715
Liberty Broadband Class C
LBRDK
$4.89B
| $265K | ﹤0.01% |
1,964
-7,230
| -79% | -$1.05M |
|
4716
PUT
Pentair
PNR
$10.6B
| $265K | ﹤0.01% |
4,900
+4,500
| +1,125% | +$272K |
|
4717
CALL
Essential Utilities
WTRG
$11.5B
| $265K | ﹤0.01% |
5,200
-3,900
| -43% | -$188K |
|
|
RUTH
4718
PUT
DELISTED
Ruth's Hospitality Group, Inc.
RUTH
| $265K | ﹤0.01% |
11,600
+2,100
| +22% | +$45.3K |
|
|
MNTV
4719
CALL
DELISTED
Momentive Global Inc. Common Stock
MNTV
| $265K | ﹤0.01% |
16,300
+6,600
| +68% | +$110K |
|
|
AMWD
4720
CALL
DELISTED
American Woodmark
AMWD
| $264K | ﹤0.01% |
5,400
+4,900
| +980% | +$282K |
|
4721
CALL
Chord Energy
CHRD
$7.68B
| $263K | ﹤0.01% |
1,800
+900
| +100% | +$125K |
|
|
CUK
4722
CALL
DELISTED
Carnival PLC
CUK
| $263K | ﹤0.01% |
14,400
-49,400
| -77% | -$922K |
|
4723
Group 1 Automotive
GPI
$4.26B
| $263K | ﹤0.01% |
1,570
+1,357
| +637% | +$247K |
|
4724
PUT
Repligen
RGEN
$6.91B
| $263K | ﹤0.01% |
1,400
| – | – |
|
4725
Adecoagro
AGRO
$1.4B
| $262K | ﹤0.01% |
21,713
+16,410
| +309% | +$151K |
|
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.