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 |
Amazon
AMZN
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
DOCU
1851
DocuSign
DOCU
$10.9B
| $2.04M | ﹤0.01% |
36,909
+36,732
| +20,753% | +$1.79M |
|
1852
PUT
Amplify Online Retail ETF
IBUY
$111M
| $2.04M | ﹤0.01% |
123,500
+4,700
| +4% | +$192K |
|
1853
PUT
Pinnacle West Capital
PNW
$12.3B
| $2.04M | ﹤0.01% |
26,900
-13,300
| -33% | -$950K |
|
1854
PUT
Healthcare Realty
HR
$7.02B
| $2.04M | ﹤0.01% |
106,100
-46,500
| -30% | -$913K |
|
1855
PUT
Sonos
SONO
$1.94B
| $2.03M | ﹤0.01% |
120,400
-7,500
| -6% | -$122K |
|
1856
CALL
Dentsply Sirona
XRAY
$2.83B
| $2.03M | ﹤0.01% |
63,900
+60,300
| +1,675% | +$1.82M |
|
1857
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24B
| $2.03M | ﹤0.01% |
15,029
+11,265
| +299% | +$1.51M |
|
1858
Futu Holdings
FUTU
$15.2B
| $2.02M | ﹤0.01% |
49,828
+496
| +1% | +$24.2K |
|
1859
CALL
Mettler-Toledo International
MTD
$28.7B
| $2.02M | ﹤0.01% |
1,400
+1,000
| +250% | +$1.34M |
|
|
ESPR
1860
PUT
DELISTED
Esperion Therapeutics
ESPR
| $2.02M | ﹤0.01% |
324,500
+273,000
| +530% | +$1.95M |
|
1861
PUT
Plains All American Pipeline
PAA
$16.6B
| $2.02M | ﹤0.01% |
171,500
+2,100
| +1% | +$24.9K |
|
1862
ScottsMiracle-Gro
SMG
$3.86B
| $2.01M | ﹤0.01% |
41,454
+32,394
| +358% | +$1.62M |
|
1863
CALL
Albertsons Companies
ACI
$5.83B
| $2.01M | ﹤0.01% |
97,000
-116,000
| -54% | -$2.55M |
|
1864
CALL
Ryman Hospitality Properties
RHP
$8.27B
| $2M | ﹤0.01% |
24,500
+13,500
| +123% | +$1.16M |
|
1865
PUT
West Pharmaceutical
WST
$24.5B
| $2M | ﹤0.01% |
8,500
+6,000
| +240% | +$1.42M |
|
1866
CALL
Clearfield
CLFD
$461M
| $2M | ﹤0.01% |
21,200
+12,800
| +152% | +$1.35M |
|
1867
Intuitive Surgical
ISRG
$129B
| $1.99M | ﹤0.01% |
7,513
-34,740
| -82% | -$8.47M |
|
1868
CALL
Assured Guaranty
AGO
$3.7B
| $1.99M | ﹤0.01% |
32,000
+600
| +2% | +$35.6K |
|
1869
CALL
Box
BOX
$4.42B
| $1.99M | ﹤0.01% |
64,000
+13,800
| +27% | +$394K |
|
1870
iShares Mortgage Real Estate ETF
REM
$540M
| $1.99M | ﹤0.01% |
+87,833
| New | +$2.05M |
|
1871
CALL
Fox Class B
FOX
$22B
| $1.99M | ﹤0.01% |
66,300
+12,000
| +22% | +$344K |
|
1872
CALL
Polaris
PII
$4.16B
| $1.99M | ﹤0.01% |
19,700
-12,600
| -39% | -$1.31M |
|
1873
CALL
Omega Healthcare
OHI
$14.6B
| $1.99M | ﹤0.01% |
71,100
-59,800
| -46% | -$1.8M |
|
1874
CALL
Gold Fields
GFI
$30.8B
| $1.98M | ﹤0.01% |
191,600
-21,000
| -10% | -$203K |
|
1875
PUT
Huntington Bancshares
HBAN
$35.7B
| $1.98M | ﹤0.01% |
140,600
-33,700
| -19% | -$488K |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.