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 | |
|---|---|---|---|---|---|---|
|
RIDE
4951
PUT
DELISTED
Lordstown Motors Corp. Class A Common Stock
RIDE
| $234K | ﹤0.01% |
4,527
-20,206
| -82% | -$1.47M |
|
4952
Civista Bancshares
CIVB
$604M
| $233K | ﹤0.01% |
+9,562
| New | +$235K |
|
|
GOCO
4953
CALL
DELISTED
GoHealth
GOCO
| $233K | ﹤0.01% |
4,107
-4,640
| -53% | -$310K |
|
4954
PUT
Joby Aviation
JOBY
$7.03B
| $233K | ﹤0.01% |
+32,000
| New | +$266K |
|
4955
Kodak
KODK
$822M
| $233K | ﹤0.01% |
49,920
+47,521
| +1,981% | +$298K |
|
4956
Natural Resource Partners
NRP
$1.3B
| $233K | ﹤0.01% |
+6,985
| New | +$213K |
|
4957
CALL
Photronics
PLAB
$1.79B
| $233K | ﹤0.01% |
12,400
+5,100
| +70% | +$74.7K |
|
4958
PUT
Wyndham Hotels & Resorts
WH
$5.56B
| $233K | ﹤0.01% |
2,600
-8,700
| -77% | -$727K |
|
|
CNR
4959
Core Natural Resources Inc
CNR
$4.02B
| $233K | ﹤0.01% |
+10,260
| New | +$266K |
|
|
SUNL
4960
DELISTED
Sunlight Financial Holdings, Inc.
SUNL
| $233K | ﹤0.01% |
+2,441
| New | +$235K |
|
4961
PUT
AvePoint
AVPT
$2.76B
| $232K | ﹤0.01% |
+36,900
| New | +$286K |
|
4962
Genco Shipping & Trading
GNK
$1.11B
| $232K | ﹤0.01% |
14,534
+8,447
| +139% | +$137K |
|
4963
PUT
Gaotu Techedu
GOTU
$434M
| $232K | ﹤0.01% |
120,000
-240,600
| -67% | -$671K |
|
4964
Ingles Markets
IMKTA
$1.71B
| $232K | ﹤0.01% |
+2,693
| New | +$205K |
|
4965
CALL
Regis Corp
RGS
$68.4M
| $232K | ﹤0.01% |
6,675
+6,190
| +1,276% | +$336K |
|
4966
CALL
Sally Beauty Holdings
SBH
$1.43B
| $232K | ﹤0.01% |
12,600
-37,500
| -75% | -$684K |
|
4967
CALL
Steven Madden
SHOO
$3.37B
| $232K | ﹤0.01% |
5,000
-800
| -14% | -$36.8K |
|
4968
Beyond Air
XAIR
$3.8M
| $232K | ﹤0.01% |
+62
| New | +$277K |
|
|
SMAR
4969
PUT
DELISTED
Smartsheet Inc.
SMAR
| $232K | ﹤0.01% |
3,000
-1,800
| -38% | -$126K |
|
|
TFFP
4970
DELISTED
TFF Pharmaceuticals, Inc. Common Stock
TFFP
| $232K | ﹤0.01% |
1,050
+97
| +10% | +$18.8K |
|
4971
B2Gold
BTG
$5B
| $231K | ﹤0.01% |
+58,975
| New | +$237K |
|
4972
Enovix
ENVX
$892M
| $231K | ﹤0.01% |
+9,718
| New | +$235K |
|
4973
CALL
Grid Dynamics Holdings
GDYN
$559M
| $231K | ﹤0.01% |
6,100
-800
| -12% | -$27.6K |
|
4974
PUT
Warrior Met Coal
HCC
$4.19B
| $231K | ﹤0.01% |
9,000
-4,500
| -33% | -$108K |
|
4975
CALL
Global X MSCI Norway ETF
NORW
$88M
| $231K | ﹤0.01% |
15,500
-17,600
| -53% | -$547K |
|
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.