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 | |
|---|---|---|---|---|---|---|
2176
CALL
uniQure
QURE
$2.68B
| $1.37M | ﹤0.01% |
60,400
+52,200
| +637% | +$1.13M |
|
2177
PUT
Acadia Pharmaceuticals
ACAD
$4.25B
| $1.37M | ﹤0.01% |
85,900
-14,800
| -15% | -$231K |
|
2178
CALL
STAG Industrial
STAG
$7.86B
| $1.37M | ﹤0.01% |
42,300
+29,900
| +241% | +$937K |
|
2179
CALL
Yelp
YELP
$1.38B
| $1.36M | ﹤0.01% |
49,900
-5,300
| -10% | -$168K |
|
|
PRVB
2180
CALL
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $1.36M | ﹤0.01% |
129,000
+54,000
| +72% | +$436K |
|
|
LKFT
2181
PUT
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.82B
| $1.36M | ﹤0.01% |
30,700
+24,300
| +380% | +$1.02M |
|
|
WIRE
2182
PUT
DELISTED
Encore Wire Corp
WIRE
| $1.36M | ﹤0.01% |
9,900
+6,800
| +219% | +$941K |
|
|
FTCH
2183
PUT
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $1.36M | ﹤0.01% |
287,600
+15,400
| +6% | +$107K |
|
|
FPI
2184
CALL
Farmland Partners
FPI
$419M
| $1.36M | ﹤0.01% |
109,100
+29,800
| +38% | +$394K |
|
2185
PUT
Philips
PHG
$25.4B
| $1.36M | ﹤0.01% |
105,809
-32,000
| -23% | -$386K |
|
2186
Liberty Global Class A
LBTYA
$3.31B
| $1.36M | ﹤0.01% |
71,639
-1,849
| -3% | -$33.6K |
|
2187
CALL
PDS Biotechnology
PDSB
$38.1M
| $1.36M | ﹤0.01% |
102,800
+30,000
| +41% | +$212K |
|
2188
Huazhu Hotels Group
HTHT
$12.4B
| $1.35M | ﹤0.01% |
31,941
+10,354
| +48% | +$374K |
|
|
FLG
2189
CALL
Flagstar Bank National Association
FLG
$5.77B
| $1.35M | ﹤0.01% |
52,367
-13,133
| -20% | -$352K |
|
2190
Consolidated Edison
ED
$41.6B
| $1.35M | ﹤0.01% |
14,159
-11,574
| -45% | -$1.05M |
|
2191
CALL
Orion
OEC
$394M
| $1.35M | ﹤0.01% |
75,700
-12,800
| -14% | -$215K |
|
2192
PUT
GFL Environmental
GFL
$14.3B
| $1.35M | ﹤0.01% |
46,100
-5,100
| -10% | -$138K |
|
2193
United Natural Foods
UNFI
$3.01B
| $1.35M | ﹤0.01% |
34,819
-15,144
| -30% | -$627K |
|
2194
PUT
Conagra Brands
CAG
$7.07B
| $1.35M | ﹤0.01% |
34,800
-99,100
| -74% | -$3.59M |
|
|
VTNR
2195
PUT
DELISTED
Vertex Energy, Inc
VTNR
| $1.35M | ﹤0.01% |
217,100
-152,500
| -41% | -$1.14M |
|
2196
CALL
New Fortress Energy
NFE
$101M
| $1.34M | ﹤0.01% |
31,700
-16,200
| -34% | -$783K |
|
2197
CALL
Sempra
SRE
$60.8B
| $1.34M | ﹤0.01% |
17,400
+1,000
| +6% | +$77.4K |
|
|
IPG
2198
DELISTED
Interpublic Group of Companies
IPG
| $1.34M | ﹤0.01% |
+40,273
| New | +$1.25M |
|
|
CAN
2199
CALL
Canaan Creative
CAN
$176M
| $1.34M | ﹤0.01% |
649,100
+289,300
| +80% | +$801K |
|
2200
PUT
Polestar Automotive Holding UK
PSNY
$1.98B
| $1.33M | ﹤0.01% |
8,377
+650
| +8% | +$105K |
|
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.