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 | |
|---|---|---|---|---|---|---|
3826
PUT
Freedom Holding
FRHC
$9.84B
| $506K | ﹤0.01% |
8,500
-900
| -10% | -$56.3K |
|
|
VLRS
3827
Controladora Vuela Compania de Aviacion
VLRS
$910M
| $506K | ﹤0.01% |
27,861
+11,482
| +70% | +$203K |
|
|
NVRO
3828
PUT
DELISTED
NEVRO CORP.
NVRO
| $506K | ﹤0.01% |
7,000
+5,100
| +268% | +$368K |
|
3829
PUT
Viant Technology
DSP
$227M
| $505K | ﹤0.01% |
77,200
+73,900
| +2,239% | +$564K |
|
3830
DigitalBridge
DBRG
$2.93B
| $504K | ﹤0.01% |
17,516
+4,716
| +37% | +$137K |
|
3831
PUT
IPG Photonics
IPGP
$3.57B
| $504K | ﹤0.01% |
4,600
+2,000
| +77% | +$275K |
|
3832
PUT
Sundial Growers
SNDL
$318M
| $504K | ﹤0.01% |
72,110
-4,310
| -6% | -$23.8K |
|
3833
CALL
Magnachip Semiconductor
MX
$118M
| $503K | ﹤0.01% |
29,800
-300
| -1% | -$5.39K |
|
3834
PUT
LendingTree
TREE
$572M
| $502K | ﹤0.01% |
4,200
+3,100
| +282% | +$366K |
|
3835
CALL
X4 Pharmaceuticals
XFOR
$371M
| $502K | ﹤0.01% |
9,577
+8,690
| +980% | +$498K |
|
|
TVRD
3836
CALL
Tvardi Therapeutics
TVRD
$22.9M
| $501K | ﹤0.01% |
1,147
+255
| +29% | +$105K |
|
3837
Carnival Corporation Ltd
CCL
$38.7B
| $500K | ﹤0.01% |
+24,769
| New | +$501K |
|
3838
CALL
Community Health Systems
CYH
$393M
| $500K | ﹤0.01% |
42,200
+13,300
| +46% | +$162K |
|
|
JJT
3839
CALL
DELISTED
iPath Series B Bloomberg Tin Subindex Total ReturnSM ETN
JJT
| $500K | ﹤0.01% |
11,200
-1,900
| -15% | -$246K |
|
3840
CALL
The Honest Company
HNST
$421M
| $499K | ﹤0.01% |
95,900
+88,800
| +1,251% | +$535K |
|
|
SOND
3841
CALL
DELISTED
Sonder
SOND
| $499K | ﹤0.01% |
+5,260
| New | +$754K |
|
3842
TMC The Metals Company
TMC
$1.56B
| $499K | ﹤0.01% |
193,026
+173,975
| +913% | +$310K |
|
3843
PUT
Hess Midstream
HESM
$5.13B
| $498K | ﹤0.01% |
16,600
+6,800
| +69% | +$205K |
|
|
DFTX
3844
CALL
Definium Therapeutics
DFTX
$5.57B
| $498K | ﹤0.01% |
29,940
-5,173
| -15% | -$89.7K |
|
3845
Designer Brands
DBI
$322M
| $497K | ﹤0.01% |
36,838
+7,405
| +25% | +$98K |
|
3846
PUT
Pacific Biosciences
PACB
$432M
| $497K | ﹤0.01% |
54,700
+34,900
| +176% | +$402K |
|
|
FLG
3847
PUT
Flagstar Bank National Association
FLG
$5.83B
| $497K | ﹤0.01% |
15,467
+2,734
| +21% | +$96.1K |
|
3848
AbCellera Biologics
ABCL
$1.62B
| $496K | ﹤0.01% |
50,956
-34,468
| -40% | -$326K |
|
3849
CALL
Butterfly Network
BFLY
$1.88B
| $496K | ﹤0.01% |
104,300
+36,700
| +54% | +$201K |
|
3850
Microchip Technology
MCHP
$41.1B
| $496K | ﹤0.01% |
+6,607
| New | +$497K |
|
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.