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 | |
|---|---|---|---|---|---|---|
|
SF
6851
CALL
Stifel
SF
$12.6B
| $61K | ﹤0.01% |
1,350
-4,800
| -78% | -$230K |
|
6852
CALL
Soluna Holdings
SLNH
$192M
| $61K | ﹤0.01% |
+224
| New | +$55.8K |
|
6853
ProShares UltraShort Materials
SMN
$4.17M
| $61K | ﹤0.01% |
1,533
| – | – |
|
6854
Vera Bradley
VRA
$97M
| $61K | ﹤0.01% |
7,983
+3,369
| +73% | +$26.6K |
|
6855
Vanguard Tax-Exempt Bond Index Fund
VTEB
$45.1B
| $61K | ﹤0.01% |
+1,195
| New | +$63.6K |
|
6856
PUT
Essential Utilities
WTRG
$11.3B
| $61K | ﹤0.01% |
1,200
-500
| -29% | -$24.1K |
|
6857
Zillow
Z
$7.79B
| $61K | ﹤0.01% |
1,249
-66,665
| -98% | -$3.58M |
|
|
ZEPP
6858
Zepp Health
ZEPP
$66.4M
| $61K | ﹤0.01% |
5,329
+5,109
| +2,322% | +$82.5K |
|
6859
PUT
Zai Lab
ZLAB
$2.06B
| $61K | ﹤0.01% |
1,400
+500
| +56% | +$24.2K |
|
|
IMBI
6860
DELISTED
iMedia Brands, Inc. Class A Common Stock
IMBI
| $61K | ﹤0.01% |
+10,217
| New | +$63.3K |
|
|
BIOC
6861
CALL
DELISTED
Biocept, Inc.
BIOC
| $61K | ﹤0.01% |
890
+820
| +1,171% | +$64.4K |
|
|
NSR
6862
CALL
DELISTED
Nomad Royalty Company Ltd.
NSR
| $61K | ﹤0.01% |
+8,400
| New | +$58.5K |
|
|
AIV
6863
Aimco
AIV
$387M
| $60K | ﹤0.01% |
8,296
+3,340
| +67% | +$23.8K |
|
|
API
6864
Agora
API
$338M
| $60K | ﹤0.01% |
+6,075
| New | +$68.2K |
|
6865
CALL
Arvinas
ARVN
$518M
| $60K | ﹤0.01% |
900
-300
| -25% | -$20.4K |
|
6866
PUT
Aurora
AUR
$12.6B
| $60K | ﹤0.01% |
10,900
-8,600
| -44% | -$49.5K |
|
6867
Chord Energy
CHRD
$7.9B
| $60K | ﹤0.01% |
+415
| New | +$57.4K |
|
6868
CALL
Ceragon Networks
CRNT
$197M
| $60K | ﹤0.01% |
28,500
-20,700
| -42% | -$45.2K |
|
6869
PUT
First Commonwealth Financial
FCF
$2.18B
| $60K | ﹤0.01% |
4,000
+1,600
| +67% | +$26K |
|
6870
CALL
Fluence Energy
FLNC
$1.85B
| $60K | ﹤0.01% |
+4,600
| New | +$77.1K |
|
6871
CALL
Finance of America Companies
FOA
$203M
| $60K | ﹤0.01% |
+1,980
| New | +$69K |
|
6872
CALL
iBio
IBIO
$69.5M
| $60K | ﹤0.01% |
282
+135
| +92% | +$28.2K |
|
6873
Kyndryl
KD
$2.99B
| $60K | ﹤0.01% |
4,610
-31,063
| -87% | -$468K |
|
6874
PUT
Landstar System
LSTR
$5.93B
| $60K | ﹤0.01% |
400
| – | – |
|
6875
PUT
National CineMedia
NCMI
$376M
| $60K | ﹤0.01% |
2,370
+50
| +2% | +$1.39K |
|
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.