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 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5151
PUT
Zumiez
ZUMZ
$332M
| $135K | ﹤0.01% |
5,200
+4,100
| +373% | +$138K |
|
5152
PUT
Ardmore Shipping
ASC
$710M
| $134K | ﹤0.01% |
19,300
+10,400
| +117% | +$69.6K |
|
5153
CALL
Bread Financial
BFH
$4.37B
| $134K | ﹤0.01% |
31,100
-8,000
| -20% | -$408K |
|
5154
PUT
Black Stone Minerals
BSM
$3.18B
| $134K | ﹤0.01% |
9,800
-1,200
| -11% | -$18.2K |
|
5155
Enovix
ENVX
$892M
| $134K | ﹤0.01% |
+17,258
| New | +$162K |
|
5156
PUT
FNB Corp
FNB
$6.73B
| $134K | ﹤0.01% |
12,400
+2,800
| +29% | +$32.7K |
|
5157
PUT
The GEO Group
GEO
$4.13B
| $134K | ﹤0.01% |
20,400
-27,600
| -58% | -$184K |
|
5158
CALL
Pacira BioSciences
PCRX
$1.04B
| $134K | ﹤0.01% |
2,300
+1,000
| +77% | +$65.5K |
|
|
GTM
5159
ZoomInfo Technologies
GTM
$973M
| $134K | ﹤0.01% |
4,033
+4,030
| +134,333% | +$178K |
|
|
INVX
5160
CALL
Innovex International
INVX
$1.96B
| $134K | ﹤0.01% |
5,200
+3,400
| +189% | +$104K |
|
|
CYXT
5161
CALL
DELISTED
Cyxtera Technologies, Inc. Class A Common Stock
CYXT
| $134K | ﹤0.01% |
11,900
+1,200
| +11% | +$15.5K |
|
|
BRMK
5162
PUT
DELISTED
Broadmark Realty Capital Inc. Common Stock
BRMK
| $134K | ﹤0.01% |
20,000
+7,200
| +56% | +$54.3K |
|
|
IEA
5163
CALL
DELISTED
Infrastructure and Energy Alternatives, Inc. Common Stock
IEA
| $134K | ﹤0.01% |
16,800
-36,900
| -69% | -$345K |
|
5164
CALL
Apogee Enterprises
APOG
$826M
| $133K | ﹤0.01% |
3,400
+2,900
| +580% | +$124K |
|
|
AZEK
5165
PUT
DELISTED
The AZEK Co
AZEK
| $133K | ﹤0.01% |
8,000
+500
| +7% | +$10.3K |
|
5166
PUT
Dover
DOV
$27.6B
| $133K | ﹤0.01% |
1,100
-4,000
| -78% | -$541K |
|
5167
PUT
GrowGeneration
GRWG
$86.5M
| $133K | ﹤0.01% |
37,300
-42,100
| -53% | -$240K |
|
5168
PUT
Nabors Industries
NBR
$1.27B
| $133K | ﹤0.01% |
1,000
+700
| +233% | +$110K |
|
5169
CALL
National Health Investors
NHI
$3.72B
| $133K | ﹤0.01% |
2,200
-900
| -29% | -$51.2K |
|
5170
CALL
Smith Micro Software
SMSI
$14.5M
| $133K | ﹤0.01% |
1,355
-240
| -15% | -$27.9K |
|
5171
Tronox
TROX
$932M
| $133K | ﹤0.01% |
+7,970
| New | +$144K |
|
5172
PUT
Vericel Corp
VCEL
$2.35B
| $133K | ﹤0.01% |
5,300
+4,000
| +308% | +$118K |
|
|
AXNX
5173
DELISTED
Axonics, Inc. Common Stock
AXNX
| $133K | ﹤0.01% |
2,361
+669
| +40% | +$36.7K |
|
|
CCV
5174
PUT
DELISTED
Churchill Capital Corp V
CCV
| $133K | ﹤0.01% |
13,600
+13,400
| +6,700% | +$132K |
|
|
SPPI
5175
CALL
DELISTED
Spectrum Pharmaceuticals Inc
SPPI
| $133K | ﹤0.01% |
171,700
+120,700
| +237% | +$106K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.