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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1826
CALL
FS KKR Capital
FSK
$2.98B
| $2.32M | ﹤0.01% |
137,100
-172,500
| -56% | -$3.6M |
|
1827
CALL
Dillards
DDS
$8.87B
| $2.32M | ﹤0.01% |
8,500
+2,500
| +42% | +$662K |
|
1828
CALL
Ciena
CIEN
$55.3B
| $2.31M | ﹤0.01% |
57,200
-58,400
| -51% | -$2.81M |
|
|
ESPR
1829
CALL
DELISTED
Esperion Therapeutics
ESPR
| $2.31M | ﹤0.01% |
345,200
-80,900
| -19% | -$556K |
|
|
DFTX
1830
PUT
Definium Therapeutics
DFTX
$5.73B
| $2.31M | ﹤0.01% |
660,600
+651,080
| +6,839% | +$6.25M |
|
1831
CALL
Tencent Music
TME
$14.5B
| $2.31M | ﹤0.01% |
569,400
+26,100
| +5% | +$119K |
|
1832
PUT
AngloGold Ashanti
AU
$40.3B
| $2.31M | ﹤0.01% |
167,200
+71,300
| +74% | +$1.02M |
|
1833
PUT
Concentrix
CNXC
$1.36B
| $2.31M | ﹤0.01% |
20,700
+100
| +0.5% | +$12.8K |
|
|
1834
Apple
AAPL
$4.89T
| $2.31M | ﹤0.01% |
16,700
-2,974,785
| -99% | -$467M |
|
|
RVNC
1835
CALL
DELISTED
Revance Therapeutics, Inc.
RVNC
| $2.31M | ﹤0.01% |
85,400
+55,100
| +182% | +$1.12M |
|
|
VTNR
1836
PUT
DELISTED
Vertex Energy, Inc
VTNR
| $2.3M | ﹤0.01% |
369,600
+26,900
| +8% | +$246K |
|
1837
CALL
Coty
COTY
$2.33B
| $2.3M | ﹤0.01% |
364,100
-71,100
| -16% | -$538K |
|
1838
CALL
Axalta
AXTA
$7.01B
| $2.3M | ﹤0.01% |
109,200
-22,600
| -17% | -$556K |
|
1839
CALL
AES
AES
$10.6B
| $2.3M | ﹤0.01% |
101,700
-47,300
| -32% | -$1.12M |
|
1840
PUT
Albertsons Companies
ACI
$5.4B
| $2.3M | ﹤0.01% |
92,400
| – | – |
|
1841
PUT
Huntington Bancshares
HBAN
$35.1B
| $2.3M | ﹤0.01% |
174,300
-18,000
| -9% | -$241K |
|
1842
PUT
Morningstar
MORN
$6.56B
| $2.29M | ﹤0.01% |
10,800
-3,400
| -24% | -$809K |
|
1843
CALL
Western Union
WU
$2.57B
| $2.29M | ﹤0.01% |
169,300
+129,400
| +324% | +$2.03M |
|
1844
Goodyear
GT
$2.07B
| $2.28M | ﹤0.01% |
226,320
+209,483
| +1,244% | +$2.66M |
|
1845
AGNC Investment
AGNC
$12.3B
| $2.28M | ﹤0.01% |
+271,083
| New | +$3.18M |
|
1846
PUT
Amplify Online Retail ETF
IBUY
$106M
| $2.28M | ﹤0.01% |
118,800
-24,000
| -17% | -$1.11M |
|
1847
Dollar Tree
DLTR
$23.1B
| $2.28M | ﹤0.01% |
16,724
+13,507
| +420% | +$2.1M |
|
1848
PUT
First Majestic Silver
AG
$8.05B
| $2.27M | ﹤0.01% |
298,600
+27,100
| +10% | +$202K |
|
1849
CALL
New York Times
NYT
$11.6B
| $2.27M | ﹤0.01% |
79,100
+7,000
| +10% | +$214K |
|
|
RWT
1850
CALL
Redwood Trust
RWT
$616M
| $2.27M | ﹤0.01% |
395,700
+130,700
| +49% | +$1.01M |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.