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 | |
|---|---|---|---|---|---|---|
|
XM
3801
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
| $515K | ﹤0.01% |
18,049
+8,646
| +92% | +$250K |
|
|
TBHC
3802
DELISTED
The Brand House Collective
TBHC
| $514K | ﹤0.01% |
55,393
+19,141
| +53% | +$273K |
|
3803
PUT
Medallion Financial
MFIN
$230M
| $514K | ﹤0.01% |
60,500
+15,700
| +35% | +$121K |
|
3804
PUT
Amphenol
APH
$178B
| $512K | ﹤0.01% |
13,600
+9,200
| +209% | +$356K |
|
3805
CALL
Invesco
IVZ
$13B
| $511K | ﹤0.01% |
22,200
-6,700
| -23% | -$149K |
|
3806
PUT
Trinity Capital Inc.
TRIN
$1.59B
| $511K | ﹤0.01% |
26,500
+26,400
| +26,400% | +$471K |
|
|
HGEN
3807
DELISTED
HUMANIGEN, INC.
HGEN
| $511K | ﹤0.01% |
170,019
+96,057
| +130% | +$257K |
|
|
MAG
3808
PUT
DELISTED
MAG Silver
MAG
| $510K | ﹤0.01% |
31,600
-24,700
| -44% | -$393K |
|
3809
CALL
Rambus
RMBS
$9.53B
| $510K | ﹤0.01% |
16,000
-7,200
| -31% | -$199K |
|
|
TRQ
3810
PUT
DELISTED
Turquoise Hill Resources Ltd
TRQ
| $510K | ﹤0.01% |
17,000
-23,300
| -58% | -$487K |
|
3811
PUT
Brown-Forman Class B
BF.B
$13.2B
| $509K | ﹤0.01% |
7,600
+7,100
| +1,420% | +$473K |
|
|
CRDL
3812
CALL
Cardiol Therapeutics
CRDL
$139M
| $509K | ﹤0.01% |
332,800
-42,600
| -11% | -$70.3K |
|
3813
CALL
Alpha and Omega Semiconductor
AOSL
$878M
| $508K | ﹤0.01% |
9,300
-8,500
| -48% | -$442K |
|
3814
PUT
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.63B
| $508K | ﹤0.01% |
+4,600
| New | +$440K |
|
3815
CALL
Nexstar Media Group
NXST
$5.89B
| $508K | ﹤0.01% |
2,700
-1,000
| -27% | -$174K |
|
3816
PUT
Progyny
PGNY
$2.4B
| $508K | ﹤0.01% |
9,900
+3,000
| +43% | +$128K |
|
3817
CALL
Prothena Corp
PRTA
$440M
| $508K | ﹤0.01% |
13,900
-6,900
| -33% | -$249K |
|
|
VTLE
3818
DELISTED
Vital Energy
VTLE
| $508K | ﹤0.01% |
+6,425
| New | +$466K |
|
|
GPP
3819
CALL
DELISTED
Green Plains Partners LP
GPP
| $508K | ﹤0.01% |
35,900
+7,800
| +28% | +$111K |
|
3820
PUT
NeoGenomics
NEO
$1.75B
| $507K | ﹤0.01% |
41,800
+33,300
| +392% | +$701K |
|
3821
Titan Machinery
TITN
$459M
| $507K | ﹤0.01% |
+17,952
| New | +$544K |
|
3822
CALL
Zevra Therapeutics
ZVRA
$568M
| $507K | ﹤0.01% |
100,900
-40,000
| -28% | -$255K |
|
|
HIBB
3823
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $507K | ﹤0.01% |
11,455
+5,794
| +102% | +$314K |
|
3824
PUT
Cenntro
CENN
$8.38M
| $506K | ﹤0.01% |
+386
| New | +$479K |
|
3825
Sprinklr
CXM
$1.48B
| $506K | ﹤0.01% |
42,548
-1,052
| -2% | -$12.7K |
|
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.