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 | |
|---|---|---|---|---|---|---|
|
SIVB
1726
CALL
DELISTED
SVB Financial Group
SIVB
| $2.71M | ﹤0.01% |
4,000
-4,700
| -54% | -$3.31M |
|
1727
CALL
Invesco Mortgage Capital
IVR
$776M
| $2.71M | ﹤0.01% |
97,330
-34,610
| -26% | -$1.07M |
|
1728
CALL
Unilever
UL
$131B
| $2.71M | ﹤0.01% |
44,711
-14,311
| -24% | -$850K |
|
|
NVO
1729
Novo Nordisk
NVO
$216B
| $2.7M | ﹤0.01% |
48,296
-21,338
| -31% | -$1.16M |
|
1730
CALL
Hecla Mining
HL
$10.2B
| $2.7M | ﹤0.01% |
517,900
+313,200
| +153% | +$1.75M |
|
1731
CALL
Magnite
MGNI
$2.65B
| $2.7M | ﹤0.01% |
154,500
+27,500
| +22% | +$620K |
|
1732
CALL
Hasbro
HAS
$12.6B
| $2.7M | ﹤0.01% |
26,500
-18,600
| -41% | -$1.79M |
|
1733
CALL
Arbor Realty Trust
ABR
$960M
| $2.69M | ﹤0.01% |
146,900
-6,500
| -4% | -$122K |
|
|
NVRO
1734
CALL
DELISTED
NEVRO CORP.
NVRO
| $2.69M | ﹤0.01% |
33,200
+30,400
| +1,086% | +$3.05M |
|
1735
CALL
Bloomin' Brands
BLMN
$680M
| $2.69M | ﹤0.01% |
128,000
+98,200
| +330% | +$2.07M |
|
1736
PUT
Iron Mountain
IRM
$38.2B
| $2.68M | ﹤0.01% |
51,300
-19,500
| -28% | -$922K |
|
1737
CALL
Melco Resorts & Entertainment
MLCO
$2.1B
| $2.68M | ﹤0.01% |
263,300
+171,800
| +188% | +$1.83M |
|
|
TTCF
1738
CALL
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $2.68M | ﹤0.01% |
172,300
+51,000
| +42% | +$873K |
|
1739
CALL
Welltower
WELL
$178B
| $2.68M | ﹤0.01% |
31,200
-38,600
| -55% | -$3.22M |
|
|
BGFV
1740
PUT
DELISTED
Big 5 Sporting Goods
BGFV
| $2.67M | ﹤0.01% |
140,600
+66,800
| +91% | +$1.67M |
|
|
AVLR
1741
CALL
DELISTED
Avalara, Inc.
AVLR
| $2.67M | ﹤0.01% |
20,700
-2,700
| -12% | -$421K |
|
1742
CALL
Conagra Brands
CAG
$7.07B
| $2.67M | ﹤0.01% |
78,200
-64,400
| -45% | -$2.11M |
|
|
MNTV
1743
DELISTED
Momentive Global Inc. Common Stock
MNTV
| $2.67M | ﹤0.01% |
+126,275
| New | +$2.78M |
|
1744
CALL
Flowers Foods
FLO
$1.64B
| $2.66M | ﹤0.01% |
96,900
-17,500
| -15% | -$452K |
|
1745
CALL
FMC
FMC
$1.42B
| $2.66M | ﹤0.01% |
24,200
+6,300
| +35% | +$634K |
|
1746
Global X Uranium ETF
URA
$5.52B
| $2.66M | ﹤0.01% |
+116,539
| New | +$3.08M |
|
1747
CALL
PBF Energy
PBF
$7.29B
| $2.66M | ﹤0.01% |
205,000
+71,300
| +53% | +$988K |
|
1748
Stellantis
STLA
$16.5B
| $2.66M | ﹤0.01% |
141,694
-48,171
| -25% | -$929K |
|
1749
PUT
Playboy Inc
PLBY
$141M
| $2.66M | ﹤0.01% |
99,700
+18,700
| +23% | +$565K |
|
1750
PUT
Rockwell Automation
ROK
$51.4B
| $2.65M | ﹤0.01% |
7,600
-1,400
| -16% | -$464K |
|
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.