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 | |
|---|---|---|---|---|---|---|
2301
PUT
Malibu Boats
MBUU
$557M
| $1.33M | ﹤0.01% |
25,300
+19,900
| +369% | +$1.08M |
|
2302
CALL
Kinsale Capital Group
KNSL
$8.21B
| $1.33M | ﹤0.01% |
5,800
+5,600
| +2,800% | +$1.24M |
|
2303
PUT
FIVE9
FIVN
$1.98B
| $1.33M | ﹤0.01% |
14,600
-26,200
| -64% | -$2.65M |
|
2304
Constellation Brands
STZ
$22.2B
| $1.33M | ﹤0.01% |
+5,708
| New | +$1.39M |
|
2305
CALL
Smith & Wesson
SWBI
$661M
| $1.33M | ﹤0.01% |
101,300
+18,000
| +22% | +$261K |
|
2306
CALL
XP
XP
$8.72B
| $1.33M | ﹤0.01% |
74,000
-59,400
| -45% | -$1.37M |
|
2307
CALL
Vanguard Total Bond Market
BND
$158B
| $1.33M | ﹤0.01% |
17,400
+1,300
| +8% | +$98.9K |
|
2308
CALL
Home BancShares
HOMB
$6.23B
| $1.33M | ﹤0.01% |
63,900
+30,300
| +90% | +$655K |
|
2309
CALL
Treace Medical Concepts
TMCI
$268M
| $1.33M | ﹤0.01% |
92,600
+87,000
| +1,554% | +$1.47M |
|
2310
PUT
Jackson Financial
JXN
$8.43B
| $1.33M | ﹤0.01% |
49,600
+46,500
| +1,500% | +$1.7M |
|
2311
America's Car Mart
CRMT
$28.6M
| $1.32M | ﹤0.01% |
+13,171
| New | +$1.2M |
|
2312
PUT
Xerox
XRX
$357M
| $1.32M | ﹤0.01% |
89,200
+28,200
| +46% | +$500K |
|
2313
CALL
Dillards
DDS
$8.95B
| $1.32M | ﹤0.01% |
6,000
-100
| -2% | -$28.9K |
|
2314
CALL
Ecolab
ECL
$76.3B
| $1.32M | ﹤0.01% |
8,600
+2,900
| +51% | +$481K |
|
2315
ProShares UltraShort QQQ
QID
$289M
| $1.32M | ﹤0.01% |
10,108
-1,571
| -13% | -$180K |
|
2316
CALL
PetMed Express
PETS
$41.9M
| $1.32M | ﹤0.01% |
66,300
+16,900
| +34% | +$378K |
|
|
SFIX
2317
CALL
Stitch Fix
SFIX
$518M
| $1.32M | ﹤0.01% |
267,200
+29,900
| +13% | +$250K |
|
2318
CALL
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.23B
| $1.32M | ﹤0.01% |
33,900
+200
| +0.6% | +$6.32K |
|
2319
Scorpio Tankers
STNG
$3.89B
| $1.32M | ﹤0.01% |
38,203
-109,220
| -74% | -$3.16M |
|
2320
CALL
EVgo
EVGO
$216M
| $1.31M | ﹤0.01% |
218,600
+41,900
| +24% | +$399K |
|
2321
Post Holdings
POST
$4.15B
| $1.31M | ﹤0.01% |
+15,942
| New | +$1.24M |
|
2322
PUT
West Fraser Timber
WFG
$5.18B
| $1.31M | ﹤0.01% |
17,100
+16,900
| +8,450% | +$1.42M |
|
2323
PUT
Petco
WOOF
$780M
| $1.31M | ﹤0.01% |
89,000
+80,500
| +947% | +$1.46M |
|
2324
CALL
Ascendis Pharma A/S
ASND
$16.7B
| $1.31M | ﹤0.01% |
14,100
-5,200
| -27% | -$490K |
|
2325
American Water Works
AWK
$26.2B
| $1.31M | ﹤0.01% |
8,805
+4,625
| +111% | +$705K |
|
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.