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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
AXON
1851
PUT
Axon Enterprise
AXON
$40.5B
| $1.03M | ﹤0.01% |
146
+78
| +115% | +$5.84K |
|
1852
CALL
Travelers Companies
TRV
$80.8B
| $1.03M | ﹤0.01% |
104
-308
| -75% | -$38.3K |
|
1853
PUT
Interactive Brokers
IBKR
$40.9B
| $1.03M | ﹤0.01% |
956
+104
| +12% | +$1.26K |
|
|
DQ
1854
CALL
Daqo New Energy
DQ
$790M
| $1.03M | ﹤0.01% |
890
+590
| +197% | +$6.92K |
|
1855
CALL
Minerva Neurosciences
NERV
$188M
| $1.03M | ﹤0.01% |
214
+178
| +494% | +$10.7K |
|
1856
PUT
CNX Resources
CNX
$4.85B
| $1.03M | ﹤0.01% |
1,935
+907
| +88% | +$6.03K |
|
1857
CALL
Corning
GLW
$126B
| $1.03M | ﹤0.01% |
501
-539
| -52% | -$14.1K |
|
1858
CALL
Banco Bradesco
BBD
$38.1B
| $1.02M | ﹤0.01% |
3,359
+3,197
| +1,973% | +$16.4K |
|
1859
ING
ING
$93.8B
| $1.02M | ﹤0.01% |
198,908
+186,306
| +1,478% | +$1.8M |
|
|
EGRX
1860
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $1.02M | ﹤0.01% |
+22,257
| New | +$1.12M |
|
1861
iShares 3-7 Year Treasury Bond ETF
IEI
$18.1B
| $1.02M | ﹤0.01% |
7,671
-9,971
| -57% | -$1.28M |
|
1862
Ryman Hospitality Properties
RHP
$8.4B
| $1.02M | ﹤0.01% |
+28,533
| New | +$1.97M |
|
1863
Green Dot
GDOT
$753M
| $1.02M | ﹤0.01% |
40,249
+36,783
| +1,061% | +$1.06M |
|
1864
iQIYI
IQ
$1.18B
| $1.02M | ﹤0.01% |
+57,335
| New | +$1.29M |
|
1865
PUT
Thor Industries
THO
$3.99B
| $1.02M | ﹤0.01% |
242
-41
| -14% | -$2.85K |
|
|
PETQ
1866
CALL
DELISTED
PetIQ, Inc. Class A Common Stock
PETQ
| $1.02M | ﹤0.01% |
439
+305
| +228% | +$8.47K |
|
1867
CALL
Plug Power
PLUG
$2.92B
| $1.02M | ﹤0.01% |
2,876
-469
| -14% | -$1.91K |
|
1868
iShares MSCI United Kingdom ETF
EWU
$4.04B
| $1.01M | ﹤0.01% |
+42,479
| New | +$1.27M |
|
1869
CALL
Gentex
GNTX
$4.88B
| $1.01M | ﹤0.01% |
458
+427
| +1,377% | +$11.9K |
|
|
BBBY
1870
CALL
DELISTED
Bed Bath & Beyond Inc
BBBY
| $1.01M | ﹤0.01% |
2,410
+1,317
| +120% | +$15.3K |
|
1871
Entegris
ENTG
$19.7B
| $1.01M | ﹤0.01% |
+22,641
| New | +$1.17M |
|
|
GRMN
1872
Garmin
GRMN
$46.9B
| $1.01M | ﹤0.01% |
+13,523
| New | +$1.22M |
|
1873
PUT
Johnson Controls International
JCI
$87.5B
| $1.01M | ﹤0.01% |
376
-32
| -8% | -$1.19K |
|
1874
CALL
HealthEquity
HQY
$7.91B
| $1.01M | ﹤0.01% |
200
+109
| +120% | +$7.24K |
|
|
WRK
1875
PUT
DELISTED
WestRock Company
WRK
| $1.01M | ﹤0.01% |
358
-788
| -69% | -$28.3K |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,512 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,512 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.