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 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.6M |
| 2 |
Shopify
SHOP
|
+$39.6M |
| 3 |
iShares China Large-Cap ETF
FXI
|
+$35.4M |
| 4 |
Verizon
VZ
|
+$34.1M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$34.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
AMC Entertainment Holdings
AMC
|
+$49.5M |
| 2 |
GE Aerospace
GE
|
+$35.2M |
| 3 |
Carnival Corporation Ltd
CCL
|
+$30.5M |
| 4 |
Advanced Micro Devices
AMD
|
+$28.8M |
| 5 |
Micron Technology
MU
|
+$23.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.61% |
| 2 | Consumer Discretionary | 0.43% |
| 3 | Healthcare | 0.35% |
| 4 | Communication Services | 0.23% |
| 5 | Financials | 0.21% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1026
PUT
FuelCell Energy
FCEL
$1.75B
| $6.67M | 0.01% |
42,740
+31,793
| +290% | +$7.49M |
|
|
HIMX
1027
PUT
Himax Technologies
HIMX
$2.23B
| $6.64M | 0.01% |
415,200
+67,300
| +19% | +$737K |
|
1028
FuboTV Inc
FUBO
$251M
| $6.63M | 0.01% |
35,576
+6,197
| +21% | +$1.74M |
|
1029
Elevance Health
ELV
$81.9B
| $6.62M | 0.01% |
14,291
+13,077
| +1,077% | +$5.5M |
|
1030
CALL
Fastly Inc
FSLY
$3.21B
| $6.6M | 0.01% |
186,200
-151,400
| -45% | -$6.58M |
|
1031
PUT
BlackBerry
BB
$5.01B
| $6.6M | 0.01% |
705,600
-695,700
| -50% | -$6.96M |
|
1032
CALL
Public Storage
PSA
$59.9B
| $6.59M | 0.01% |
17,600
-1,000
| -5% | -$334K |
|
1033
West Pharmaceutical
WST
$23.6B
| $6.59M | 0.01% |
14,047
+13,253
| +1,669% | +$5.7M |
|
|
JWN
1034
CALL
DELISTED
Nordstrom
JWN
| $6.58M | 0.01% |
291,000
+54,200
| +23% | +$1.44M |
|
1035
Alibaba
BABA
$270B
| $6.55M | 0.01% |
55,185
-38,464
| -41% | -$5.6M |
|
1036
PUT
PagSeguro Digital
PAGS
$2.59B
| $6.55M | 0.01% |
249,700
+94,900
| +61% | +$3.09M |
|
|
HES
1037
CALL
DELISTED
Hess
HES
| $6.54M | 0.01% |
88,400
+45,300
| +105% | +$3.67M |
|
1038
PUT
British American Tobacco
BTI
$132B
| $6.54M | 0.01% |
174,700
+44,100
| +34% | +$1.57M |
|
1039
VanEck Semiconductor ETF
SMH
$68.4B
| $6.53M | 0.01% |
42,316
-103,040
| -71% | -$14.9M |
|
1040
PUT
Edwards Lifesciences
EW
$48.2B
| $6.53M | 0.01% |
50,400
+2,200
| +5% | +$257K |
|
1041
CALL
Boston Beer
SAM
$1.87B
| $6.51M | 0.01% |
12,900
+4,800
| +59% | +$2.4M |
|
1042
PUT
Tapestry
TPR
$28.7B
| $6.51M | 0.01% |
160,300
+6,600
| +4% | +$271K |
|
1043
CALL
Wabtec
WAB
$50.9B
| $6.5M | 0.01% |
70,600
+54,000
| +325% | +$4.95M |
|
1044
PUT
Church & Dwight Co
CHD
$23B
| $6.5M | 0.01% |
63,400
+7,100
| +13% | +$644K |
|
1045
CALL
Corning
GLW
$129B
| $6.47M | 0.01% |
173,800
-25,300
| -13% | -$947K |
|
1046
CALL
VanEck Energy Income ETF
EINC
$102M
| $6.45M | 0.01% |
94,500
+93,800
| +13,400% | +$5.21M |
|
1047
PUT
Hasbro
HAS
$12.5B
| $6.43M | 0.01% |
63,200
+6,000
| +10% | +$576K |
|
1048
PUT
UiPath
PATH
$5.6B
| $6.43M | 0.01% |
149,000
+51,900
| +53% | +$2.56M |
|
1049
PUT
General Mills
GIS
$19.2B
| $6.42M | 0.01% |
95,300
+6,400
| +7% | +$407K |
|
|
MMP
1050
CALL
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $6.4M | 0.01% |
137,800
+27,800
| +25% | +$1.31M |
|
Similar funds
Simplex Trading's Q4 2021 Portfolio in Review
As of Q4 2021, Simplex Trading held 12,077 positions worth $99B, down 7.5% from $107B the previous quarter. Its ten largest holdings account for 33% of the portfolio.
Simplex Trading withdrew a net $10.8B in Q4 2021, closing 1,645 positions and reducing 4,258 holdings. Its most notable exit was Carnival Corporation Ltd, an estimated $30.5M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.61% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in iShares China Large-Cap ETF worth $33M.
- Simplex Trading's largest Q4 2021 buy was iShares China Large-Cap ETF: 902,666 shares worth $33M.
- Simplex Trading added most to State Street Financial Select Sector SPDR ETF in Q4 2021, an estimated $42.6M increase.
- Simplex Trading's biggest Q4 2021 reduction was AMC Entertainment Holdings, cutting an estimated $49.5M.
- Simplex Trading fully exited Carnival Corporation Ltd in Q4 2021, selling an estimated $30.5M.
- Simplex Trading's ten largest holdings make up 33% of its $99B portfolio in Q4 2021.
- Simplex Trading opened 2,269 new positions and closed 1,645 in Q4 2021.
- Simplex Trading's portfolio value fell 7.5% quarter-over-quarter to $99B.
Based on Simplex Trading's 13F filing for Q4 2021, filed 4 Feb 2022.