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 | |
|---|---|---|---|---|---|---|
1051
CALL
Tractor Supply
TSCO
$15.9B
| $6.82M | 0.01% |
151,500
+12,000
| +9% | +$510K |
|
1052
CALL
ClearShares Piton Intermediate Fixed Income ETF
PIFI
$97.3M
| $6.77M | 0.01% |
394,600
-80,500
| -17% | -$7.27M |
|
1053
CALL
Carvana
CVNA
$43.1B
| $6.76M | 0.01% |
7,134,500
+4,339,500
| +155% | +$9.16M |
|
1054
CALL
Progressive
PGR
$120B
| $6.76M | 0.01% |
52,100
-3,000
| -5% | -$380K |
|
1055
CALL
TAL Education Group
TAL
$5.74B
| $6.74M | 0.01% |
956,600
+390,900
| +69% | +$2.17M |
|
1056
PUT
EPAM Systems
EPAM
$4.5B
| $6.72M | 0.01% |
20,500
+15,000
| +273% | +$5.1M |
|
1057
PUT
Capri Holdings
CPRI
$1.78B
| $6.72M | 0.01% |
117,200
-18,800
| -14% | -$950K |
|
1058
Invesco Solar ETF
TAN
$1.52B
| $6.7M | 0.01% |
91,845
+88,095
| +2,349% | +$6.64M |
|
1059
CALL
VICI Properties
VICI
$29B
| $6.69M | 0.01% |
206,400
+76,200
| +59% | +$2.45M |
|
1060
CALL
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.9B
| $6.69M | 0.01% |
15,100
+5,600
| +59% | +$2.48M |
|
|
FSR
1061
CALL
DELISTED
Fisker Inc.
FSR
| $6.68M | 0.01% |
919,600
+128,300
| +16% | +$955K |
|
1062
CALL
Crown Holdings
CCK
$12.5B
| $6.68M | 0.01% |
81,300
+80,700
| +13,450% | +$6.43M |
|
1063
CALL
argenx
ARGX
$57.8B
| $6.67M | 0.01% |
17,600
+7,200
| +69% | +$2.69M |
|
1064
CALL
Corpay
CPAY
$23.8B
| $6.67M | 0.01% |
36,300
+15,200
| +72% | +$2.78M |
|
1065
PUT
Silicon Motion
SIMO
$9.8B
| $6.65M | 0.01% |
102,400
+101,100
| +7,777% | +$6.2M |
|
1066
CALL
Melco Resorts & Entertainment
MLCO
$2.16B
| $6.63M | 0.01% |
576,600
+323,400
| +128% | +$2.62M |
|
1067
PUT
Ciena
CIEN
$57.7B
| $6.62M | 0.01% |
129,900
+9,100
| +8% | +$411K |
|
1068
PUT
Elevance Health
ELV
$82.3B
| $6.62M | 0.01% |
12,900
-29,200
| -69% | -$14.8M |
|
1069
PUT
Vail Resorts
MTN
$5.13B
| $6.6M | 0.01% |
27,700
+13,000
| +88% | +$3.05M |
|
|
1070
PUT
Tractor Supply
TSCO
$15.9B
| $6.59M | 0.01% |
146,500
-149,500
| -51% | -$6.35M |
|
|
EXAS
1071
PUT
DELISTED
Exact Sciences
EXAS
| $6.59M | 0.01% |
133,100
+74,600
| +128% | +$3.05M |
|
|
VRAY
1072
PUT
DELISTED
ViewRay, Inc.
VRAY
| $6.58M | 0.01% |
1,469,300
-161,200
| -10% | -$701K |
|
|
DFS
1073
PUT
DELISTED
Discover Financial Services
DFS
| $6.56M | 0.01% |
67,100
+4,500
| +7% | +$453K |
|
1074
General Motors
GM
$73B
| $6.56M | 0.01% |
195,072
+72,807
| +60% | +$2.69M |
|
1075
PUT
Yeti Holdings
YETI
$3.8B
| $6.56M | 0.01% |
158,800
-9,700
| -6% | -$364K |
|
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.