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 | |
|---|---|---|---|---|---|---|
3426
PUT
Tower Semiconductor
TSEM
$23.2B
| $666K | ﹤0.01% |
16,800
-60,700
| -78% | -$2.11M |
|
3427
Banco Macro
BMA
$5.72B
| $665K | ﹤0.01% |
47,478
+47,378
| +47,378% | +$741K |
|
3428
CALL
Invesco
IVZ
$13.3B
| $665K | ﹤0.01% |
28,900
-16,900
| -37% | -$411K |
|
3429
PUT
EPR Properties
EPR
$4.91B
| $664K | ﹤0.01% |
14,000
-6,300
| -31% | -$313K |
|
3430
PUT
PetMed Express
PETS
$42.7M
| $664K | ﹤0.01% |
26,300
-27,000
| -51% | -$747K |
|
3431
PUT
Fortive
FTV
$19.5B
| $663K | ﹤0.01% |
11,545
-17,251
| -60% | -$975K |
|
3432
CALL
Pinnacle West Capital
PNW
$12.9B
| $663K | ﹤0.01% |
9,400
-1,400
| -13% | -$94K |
|
3433
ProShares VIX Mid-Term Futures ETF
VIXM
$56M
| $663K | ﹤0.01% |
21,716
+20,764
| +2,181% | +$645K |
|
3434
Direxion Daily CSI China Internet Index Bull 2X ETF
CWEB
$234M
| $662K | ﹤0.01% |
+5,276
| New | +$959K |
|
3435
CALL
Noodles & Co
NDLS
$84.8M
| $662K | ﹤0.01% |
9,125
-9,075
| -50% | -$826K |
|
|
OYST
3436
CALL
DELISTED
Oyster Point Pharma, Inc. Common Stock
OYST
| $662K | ﹤0.01% |
+36,300
| New | +$461K |
|
|
PVG
3437
DELISTED
PRETIUM RESOURCES INC.
PVG
| $662K | ﹤0.01% |
46,987
+34,534
| +277% | +$439K |
|
|
TRQ
3438
PUT
DELISTED
Turquoise Hill Resources Ltd
TRQ
| $662K | ﹤0.01% |
40,300
+16,640
| +70% | +$235K |
|
3439
CALL
Exelixis
EXEL
$14B
| $661K | ﹤0.01% |
36,200
-65,900
| -65% | -$1.26M |
|
|
FORG
3440
CALL
DELISTED
ForgeRock, Inc.
FORG
| $661K | ﹤0.01% |
+24,800
| New | +$716K |
|
|
CLPR
3441
Clipper Realty
CLPR
$46.9M
| $660K | ﹤0.01% |
+66,400
| New | +$595K |
|
3442
Galicia Financial Group
GGAL
$7.74B
| $660K | ﹤0.01% |
69,614
-63,341
| -48% | -$651K |
|
3443
FerroAtlántica
GSM
$622M
| $660K | ﹤0.01% |
106,436
+105,465
| +10,861% | +$721K |
|
3444
CALL
Orion
OEC
$401M
| $660K | ﹤0.01% |
36,000
+35,800
| +17,900% | +$667K |
|
3445
CALL
Cerence
CRNC
$368M
| $659K | ﹤0.01% |
8,600
-39,700
| -82% | -$3.5M |
|
3446
CALL
Pinnacle Financial Partners Inc
PNFP
$16B
| $658K | ﹤0.01% |
6,900
+3,700
| +116% | +$362K |
|
|
WIRE
3447
PUT
DELISTED
Encore Wire Corp
WIRE
| $658K | ﹤0.01% |
4,600
+4,200
| +1,050% | +$544K |
|
|
GOEV
3448
PUT
DELISTED
Canoo Inc. Class A Common Stock
GOEV
| $658K | ﹤0.01% |
185
+15
| +9% | +$59.9K |
|
3449
PUT
SM Energy
SM
$7.06B
| $657K | ﹤0.01% |
22,300
-10,800
| -33% | -$337K |
|
3450
PUT
Energy Fuels
UUUU
$2.81B
| $657K | ﹤0.01% |
86,200
-20,200
| -19% | -$171K |
|
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.