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 | |
|---|---|---|---|---|---|---|
|
VIEW
3226
CALL
DELISTED
View, Inc. Class A Common Stock
VIEW
| $594K | ﹤0.01% |
6,113
+5,046
| +473% | +$449K |
|
|
GOL
3227
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $594K | ﹤0.01% |
174,456
+26,057
| +18% | +$148K |
|
3228
AppFolio
APPF
$6.31B
| $593K | ﹤0.01% |
6,546
+2,830
| +76% | +$285K |
|
3229
PUT
O-I Glass
OI
$1.39B
| $593K | ﹤0.01% |
42,400
+6,900
| +19% | +$99.2K |
|
3230
PUT
Thomson Reuters
TRI
$45.1B
| $593K | ﹤0.01% |
5,410
+5,315
| +5,595% | +$563K |
|
3231
CALL
Extreme Networks
EXTR
$3.92B
| $592K | ﹤0.01% |
66,400
+46,500
| +234% | +$473K |
|
3232
PUT
Protagonist Therapeutics
PTGX
$8.8B
| $592K | ﹤0.01% |
74,900
-1,500
| -2% | -$18.1K |
|
3233
PUT
TD Synnex
SNX
$19.8B
| $592K | ﹤0.01% |
6,500
+6,400
| +6,400% | +$636K |
|
|
AL
3234
PUT
DELISTED
Air Lease Corp
AL
| $591K | ﹤0.01% |
17,700
+15,500
| +705% | +$587K |
|
3235
CALL
Casey's General Stores
CASY
$31.7B
| $591K | ﹤0.01% |
3,200
+2,900
| +967% | +$584K |
|
3236
CALL
DXC Technology
DXC
$1.76B
| $591K | ﹤0.01% |
19,500
+9,700
| +99% | +$301K |
|
3237
PUT
Howmet Aerospace
HWM
$114B
| $591K | ﹤0.01% |
18,800
-9,400
| -33% | -$322K |
|
3238
CALL
McCormick & Company Non-Voting
MKC
$13.9B
| $591K | ﹤0.01% |
7,100
-47,200
| -87% | -$4.47M |
|
|
DOC
3239
PUT
DELISTED
PHYSICIANS REALTY TRUST
DOC
| $591K | ﹤0.01% |
33,900
+16,900
| +99% | +$298K |
|
3240
Evercore
EVR
$13.2B
| $590K | ﹤0.01% |
+6,308
| New | +$672K |
|
3241
PUT
Joby Aviation
JOBY
$7.15B
| $590K | ﹤0.01% |
120,300
+8,900
| +8% | +$46.9K |
|
3242
State Street
STT
$50.2B
| $590K | ﹤0.01% |
+9,572
| New | +$677K |
|
3243
PUT
Talos Energy
TALO
$2.28B
| $590K | ﹤0.01% |
38,200
-7,700
| -17% | -$150K |
|
3244
CALL
Cogent Biosciences
COGT
$6.95B
| $589K | ﹤0.01% |
65,400
+64,900
| +12,980% | +$443K |
|
3245
CALL
Abercrombie & Fitch
ANF
$4.58B
| $588K | ﹤0.01% |
34,800
-1,100
| -3% | -$30.4K |
|
3246
CALL
Gen Digital
GEN
$16.5B
| $588K | ﹤0.01% |
26,800
-152,700
| -85% | -$3.75M |
|
3247
CALL
Intrepid Potash
IPI
$474M
| $588K | ﹤0.01% |
13,000
-9,200
| -41% | -$670K |
|
|
SILV
3248
DELISTED
SilverCrest Metals Inc. Common Shares
SILV
| $588K | ﹤0.01% |
96,328
+29,583
| +44% | +$224K |
|
3249
PUT
AES
AES
$10.6B
| $586K | ﹤0.01% |
27,900
-72,800
| -72% | -$1.59M |
|
3250
Martin Marietta Materials
MLM
$35B
| $586K | ﹤0.01% |
+1,960
| New | +$669K |
|
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.