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 | |
|---|---|---|---|---|---|---|
4701
CALL
Ebang International Holdings
EBON
$11.9M
| $186K | ﹤0.01% |
15,537
+8,064
| +108% | +$197K |
|
4702
Evolv Technologies
EVLV
$998M
| $186K | ﹤0.01% |
70,010
+4,610
| +7% | +$12.3K |
|
4703
PUT
Protolabs
PRLB
$1.77B
| $186K | ﹤0.01% |
3,900
+300
| +8% | +$13.9K |
|
|
SA
4704
Seabridge Gold
SA
$2.81B
| $186K | ﹤0.01% |
14,992
+2,567
| +21% | +$41.1K |
|
|
OLK
4705
DELISTED
Olink Holding AB (publ) American Depositary Shares
OLK
| $186K | ﹤0.01% |
+12,241
| New | +$159K |
|
4706
PUT
Eversource Energy
ES
$27.3B
| $185K | ﹤0.01% |
2,200
+2,000
| +1,000% | +$178K |
|
4707
CALL
Ingredion
INGR
$6.25B
| $185K | ﹤0.01% |
2,100
+1,000
| +91% | +$89.5K |
|
|
PLL
4708
PUT
DELISTED
Piedmont Lithium
PLL
| $185K | ﹤0.01% |
5,100
-9,100
| -64% | -$539K |
|
|
ACCD
4709
CALL
DELISTED
Accolade Inc
ACCD
| $185K | ﹤0.01% |
25,000
+8,500
| +52% | +$74.3K |
|
4710
CALL
Alkermes
ALKS
$8.19B
| $184K | ﹤0.01% |
6,200
+1,600
| +35% | +$46K |
|
4711
Establishment Labs
ESTA
$2.72B
| $184K | ﹤0.01% |
3,401
+2,018
| +146% | +$128K |
|
4712
PUT
Main Street Capital
MAIN
$5.04B
| $184K | ﹤0.01% |
4,800
-25,400
| -84% | -$993K |
|
4713
PUT
Monro
MNRO
$388M
| $184K | ﹤0.01% |
4,300
+3,900
| +975% | +$174K |
|
4714
CALL
Global X MSCI Norway ETF
NORW
$88M
| $184K | ﹤0.01% |
9,200
-3,100
| -25% | -$90.9K |
|
4715
iShares S&P 100 ETF
OEF
$20B
| $184K | ﹤0.01% |
1,070
+488
| +84% | +$91.2K |
|
4716
AerCap
AER
$23.8B
| $183K | ﹤0.01% |
4,477
-7,000
| -61% | -$324K |
|
|
CMRC
4717
Commerce.com Inc Series 1
CMRC
$258M
| $183K | ﹤0.01% |
+11,330
| New | +$207K |
|
4718
PUT
Kinsale Capital Group
KNSL
$8.1B
| $183K | ﹤0.01% |
800
+500
| +167% | +$111K |
|
4719
CALL
Portland General Electric
POR
$5.7B
| $183K | ﹤0.01% |
3,800
+2,100
| +124% | +$105K |
|
4720
CALL
XPEL
XPEL
$1.2B
| $183K | ﹤0.01% |
4,000
+100
| +3% | +$4.72K |
|
4721
PUT
Designer Brands
DBI
$308M
| $182K | ﹤0.01% |
14,000
-27,500
| -66% | -$396K |
|
4722
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.44B
| $182K | ﹤0.01% |
+3,284
| New | +$190K |
|
4723
iShares Global Timber & Forestry ETF
WOOD
$266M
| $182K | ﹤0.01% |
2,457
-39
| -2% | -$3.34K |
|
|
AHT
4724
Ashford Hospitality Trust
AHT
$20.8M
| $181K | ﹤0.01% |
3,040
-387
| -11% | -$26.1K |
|
4725
PUT
Ethan Allen Interiors
ETD
$572M
| $181K | ﹤0.01% |
9,000
+6,700
| +291% | +$158K |
|
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.