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 | |
|---|---|---|---|---|---|---|
|
WMC
6051
CALL
DELISTED
Western Asset Mortgage Capital Corporation
WMC
| $106K | ﹤0.01% |
6,240
-4,520
| -42% | -$88.4K |
|
6052
CALL
Bankunited
BKU
$3.37B
| $105K | ﹤0.01% |
2,400
| – | – |
|
|
CADE
6053
CALL
DELISTED
Cadence Bank
CADE
| $105K | ﹤0.01% |
3,600
+3,100
| +620% | +$96.7K |
|
|
DSL
6054
DoubleLine Income Solutions Fund
DSL
$1.22B
| $105K | ﹤0.01% |
7,296
-6,218
| -46% | -$93.7K |
|
6055
PUT
Highwoods Properties
HIW
$3.65B
| $105K | ﹤0.01% |
2,300
+1,900
| +475% | +$84K |
|
6056
Roundhill Ball Metaverse ETF
METV
$209M
| $105K | ﹤0.01% |
8,781
-8,984
| -51% | -$112K |
|
6057
PUT
One Stop Systems
OSS
$303M
| $105K | ﹤0.01% |
27,700
+18,200
| +192% | +$75.6K |
|
6058
PUT
Pacer Trendpilot US Large Cap ETF
PTLC
$3.26B
| $105K | ﹤0.01% |
5,800
+1,700
| +41% | +$66.2K |
|
6059
Arcadia Biosciences
RKDA
$1.36M
| $105K | ﹤0.01% |
+1,890
| New | +$90.1K |
|
6060
PUT
Takeda Pharmaceutical
TAK
$54.6B
| $105K | ﹤0.01% |
7,400
-5,000
| -40% | -$73.4K |
|
|
TGB
6061
PUT
Trekor Metals
TGB
$2.48B
| $105K | ﹤0.01% |
46,000
+5,600
| +14% | +$11.4K |
|
6062
PUT
Interface
TILE
$1.99B
| $105K | ﹤0.01% |
7,800
+4,100
| +111% | +$56.5K |
|
6063
CALL
Treace Medical Concepts
TMCI
$280M
| $105K | ﹤0.01% |
+5,600
| New | +$109K |
|
6064
PUT
Energous
WATT
$77.6M
| $105K | ﹤0.01% |
146
-114
| -44% | -$79.1K |
|
|
AXNX
6065
DELISTED
Axonics, Inc. Common Stock
AXNX
| $105K | ﹤0.01% |
+1,692
| New | +$91.2K |
|
|
VGR
6066
PUT
DELISTED
Vector Group Ltd.
VGR
| $105K | ﹤0.01% |
+8,800
| New | +$97.9K |
|
6067
CALL
Acco Brands
ACCO
$389M
| $104K | ﹤0.01% |
13,100
+8,000
| +157% | +$66.4K |
|
6068
Acadia Healthcare
ACHC
$2.76B
| $104K | ﹤0.01% |
+1,593
| New | +$92.5K |
|
6069
Agilon Health
AGL
$1.53B
| $104K | ﹤0.01% |
166
+33
| +25% | +$17K |
|
6070
CALL
Broadstone Net Lease
BNL
$4.11B
| $104K | ﹤0.01% |
4,800
-7,900
| -62% | -$176K |
|
6071
ProShares UltraShort Dow 30
DXD
$42.2M
| $104K | ﹤0.01% |
2,420
+2,400
| +12,000% | +$105K |
|
6072
Essent Group
ESNT
$6.08B
| $104K | ﹤0.01% |
+2,527
| New | +$112K |
|
6073
CALL
Howmet Aerospace
HWM
$113B
| $104K | ﹤0.01% |
2,900
-31,100
| -91% | -$1.06M |
|
6074
CALL
Information Services Group
III
$199M
| $104K | ﹤0.01% |
15,400
+5,000
| +48% | +$35.3K |
|
6075
PUT
Imperial Petroleum
IMPP
$213M
| $104K | ﹤0.01% |
+4,800
| New | +$136K |
|
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.