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 | |
|---|---|---|---|---|---|---|
2351
PUT
Public Service Enterprise Group
PEG
$39.5B
| $1.28M | ﹤0.01% |
20,300
+17,900
| +746% | +$1.22M |
|
2352
CALL
iQIYI
IQ
$1.18B
| $1.28M | ﹤0.01% |
305,300
-266,600
| -47% | -$1.07M |
|
2353
Ionis Pharmaceuticals
IONS
$9.25B
| $1.28M | ﹤0.01% |
34,626
+30,547
| +749% | +$1.15M |
|
2354
CALL
Companhia Siderúrgica Nacional
SID
$1.5B
| $1.28M | ﹤0.01% |
436,800
+246,800
| +130% | +$1.04M |
|
|
PBT
2355
Permian Basin Royalty Trust
PBT
$1.28B
| $1.28M | ﹤0.01% |
77,249
-7,100
| -8% | -$110K |
|
2356
CALL
SFL Corp
SFL
$1.59B
| $1.28M | ﹤0.01% |
134,700
-15,100
| -10% | -$157K |
|
2357
Celsius Holdings
CELH
$7.36B
| $1.28M | ﹤0.01% |
58,725
+53,316
| +986% | +$1.03M |
|
2358
CALL
Deckers Outdoor
DECK
$13.6B
| $1.28M | ﹤0.01% |
30,000
-20,400
| -40% | -$890K |
|
|
XIFR
2359
PUT
XPLR Infrastructure LP
XIFR
$1.19B
| $1.27M | ﹤0.01% |
17,200
-800
| -4% | -$57.4K |
|
2360
CALL
Antero Midstream
AM
$10.4B
| $1.27M | ﹤0.01% |
140,600
+53,200
| +61% | +$554K |
|
2361
CALL
3D Systems Corp
DDD
$430M
| $1.27M | ﹤0.01% |
131,100
-51,900
| -28% | -$606K |
|
|
EMBJ
2362
Embraer S.A. ADS
EMBJ
$12.1B
| $1.27M | ﹤0.01% |
144,802
-27,108
| -16% | -$290K |
|
2363
PUT
Element Solutions
ESI
$9.22B
| $1.27M | ﹤0.01% |
71,300
+62,400
| +701% | +$1.27M |
|
|
CAN
2364
CALL
Canaan Creative
CAN
$190M
| $1.27M | ﹤0.01% |
393,800
+184,900
| +89% | +$698K |
|
2365
Elanco Animal Health
ELAN
$12.7B
| $1.27M | ﹤0.01% |
+64,624
| New | +$1.53M |
|
2366
PUT
dLocal
DLO
$4.4B
| $1.27M | ﹤0.01% |
48,300
-3,500
| -7% | -$89.6K |
|
2367
Ball Corp
BALL
$17.2B
| $1.27M | ﹤0.01% |
+18,417
| New | +$1.4M |
|
2368
PUT
Corsair Gaming
CRSR
$1.13B
| $1.26M | ﹤0.01% |
96,300
-33,900
| -26% | -$553K |
|
2369
CALL
BRC Inc
BRCC
$118M
| $1.26M | ﹤0.01% |
154,900
+89,800
| +138% | +$1.23M |
|
|
SKX
2370
PUT
DELISTED
Skechers
SKX
| $1.26M | ﹤0.01% |
35,500
-11,200
| -24% | -$430K |
|
2371
CALL
Vista Energy
VIST
$7.43B
| $1.26M | ﹤0.01% |
171,000
+156,500
| +1,079% | +$1.34M |
|
2372
Dow Inc
DOW
$20.8B
| $1.26M | ﹤0.01% |
24,452
-37,682
| -61% | -$2.41M |
|
2373
PUT
Rithm Capital
RITM
$5.15B
| $1.26M | ﹤0.01% |
135,100
+45,300
| +50% | +$476K |
|
|
HR
2374
DELISTED
Healthcare Realty Trust Incorporated
HR
| $1.26M | ﹤0.01% |
46,322
+30,559
| +194% | +$854K |
|
|
AZUL
2375
PUT
DELISTED
Azul
AZUL
| $1.26M | ﹤0.01% |
177,100
-28,700
| -14% | -$346K |
|
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.