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 | |
|---|---|---|---|---|---|---|
|
TE
2151
CALL
T1 Energy
TE
$1.4B
| $1.79M | ﹤0.01% |
+160,500
| New | +$1.74M |
|
2152
CALL
Hewlett Packard
HPE
$63.2B
| $1.79M | ﹤0.01% |
113,600
+56,900
| +100% | +$858K |
|
2153
Wheaton Precious Metals
WPM
$50.6B
| $1.79M | ﹤0.01% |
41,694
+181
| +0.4% | +$7.45K |
|
2154
PUT
NCR Voyix
VYX
$1.06B
| $1.79M | ﹤0.01% |
72,535
-9,454
| -12% | -$240K |
|
2155
PUT
Arbor Realty Trust
ABR
$960M
| $1.78M | ﹤0.01% |
97,400
-46,200
| -32% | -$866K |
|
|
AHT
2156
CALL
Ashford Hospitality Trust
AHT
$21M
| $1.78M | ﹤0.01% |
18,590
-2,240
| -11% | -$279K |
|
2157
PUT
nCino
NCNO
$1.81B
| $1.78M | ﹤0.01% |
32,500
+10,800
| +50% | +$701K |
|
2158
CALL
AES
AES
$10.6B
| $1.78M | ﹤0.01% |
73,300
+22,600
| +45% | +$549K |
|
2159
CALL
Endava
DAVA
$141M
| $1.78M | ﹤0.01% |
+10,600
| New | +$1.64M |
|
|
AMRS
2160
CALL
DELISTED
Amyris Inc.
AMRS
| $1.77M | ﹤0.01% |
328,100
+137,900
| +73% | +$1.29M |
|
2161
Duke Energy
DUK
$102B
| $1.77M | ﹤0.01% |
16,920
+14,492
| +597% | +$1.47M |
|
|
DIDI
2162
CALL
DELISTED
DiDi Global Inc. American depositary shares, each four representing one Class A ordinary share
DIDI
| $1.77M | ﹤0.01% |
+356,400
| New | +$2.71M |
|
2163
CALL
Banco Bradesco
BBD
$38.1B
| $1.77M | ﹤0.01% |
570,471
+176,374
| +45% | +$583K |
|
|
ARNC
2164
PUT
DELISTED
Arconic Corporation
ARNC
| $1.77M | ﹤0.01% |
53,700
+13,800
| +35% | +$427K |
|
2165
PUT
United Natural Foods
UNFI
$3.01B
| $1.77M | ﹤0.01% |
36,100
-45,400
| -56% | -$2.19M |
|
|
CRHC
2166
CALL
DELISTED
Cohn Robbins Holdings Corp.
CRHC
| $1.77M | ﹤0.01% |
180,200
+24,600
| +16% | +$243K |
|
2167
PUT
Huntsman Corp
HUN
$2.24B
| $1.77M | ﹤0.01% |
50,700
+38,700
| +323% | +$1.26M |
|
2168
Tencent Music
TME
$14.5B
| $1.77M | ﹤0.01% |
257,822
-162,533
| -39% | -$1.2M |
|
|
MAPS
2169
CALL
DELISTED
WM TECHNOLOGY INC A
MAPS
| $1.76M | ﹤0.01% |
295,200
+202,200
| +217% | +$1.98M |
|
2170
Exelon
EXC
$48.6B
| $1.76M | ﹤0.01% |
+42,709
| New | +$1.61M |
|
2171
PUT
Alight
ALIT
$497M
| $1.76M | ﹤0.01% |
+8,130
| New | +$1.76M |
|
|
GOOS
2172
CALL
Canada Goose Holdings
GOOS
$868M
| $1.76M | ﹤0.01% |
47,400
+1,900
| +4% | +$77.8K |
|
2173
Pultegroup
PHM
$24.5B
| $1.75M | ﹤0.01% |
30,717
-17,252
| -36% | -$884K |
|
2174
CALL
BJs Wholesale Club
BJ
$11.9B
| $1.75M | ﹤0.01% |
26,200
-30,900
| -54% | -$1.93M |
|
2175
CoreCivic
CXW
$3.1B
| $1.75M | ﹤0.01% |
175,695
+65,292
| +59% | +$648K |
|
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.