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 | Miscellaneous | 97.48% |
| 2 | Technology | 0.84% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Communication Services | 0.32% |
| 5 | Financials | 0.28% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
726
CALL
Seagate
STX
$192B
| $12.3M | 0.01% |
171,900
+10,500
| +7% | +$853K |
|
727
CALL
Beyond Meat
BYND
$203M
| $12.3M | 0.01% |
17,073
+513
| +3% | +$492K |
|
728
CALL
Carvana
CVNA
$53.7B
| $12.2M | 0.01% |
2,712,500
+1,721,000
| +174% | +$18.1M |
|
729
CALL
PG&E
PCG
$31.5B
| $12.2M | 0.01% |
1,223,700
+595,200
| +95% | +$7M |
|
730
CALL
Peloton Interactive
PTON
$2.37B
| $12.1M | 0.01% |
1,323,000
+409,300
| +45% | +$6.57M |
|
|
DQ
731
CALL
Daqo New Energy
DQ
$833M
| $12M | 0.01% |
168,400
+136,000
| +420% | +$6.75M |
|
732
CALL
CF Industries
CF
$20.2B
| $12M | 0.01% |
140,200
-335,600
| -71% | -$32.6M |
|
733
PUT
Cameco
CCJ
$43.9B
| $12M | 0.01% |
569,600
-555,500
| -49% | -$14M |
|
734
CALL
Kinder Morgan
KMI
$69.9B
| $11.9M | 0.01% |
713,000
-210,800
| -23% | -$3.95M |
|
735
PUT
Cheniere Energy
LNG
$60.3B
| $11.9M | 0.01% |
89,200
-100
| -0.1% | -$13.6K |
|
736
CALL
Veeva Systems
VEEV
$44.5B
| $11.8M | 0.01% |
59,800
+21,200
| +55% | +$3.9M |
|
737
Snap
SNAP
$9.25B
| $11.8M | 0.01% |
896,240
+542,090
| +153% | +$12.4M |
|
738
CALL
Progressive
PGR
$127B
| $11.8M | 0.01% |
101,200
+63,200
| +166% | +$7.17M |
|
|
739
PUT
Veeva Systems
VEEV
$44.5B
| $11.8M | 0.01% |
59,400
+21,100
| +55% | +$3.88M |
|
740
PUT
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.5B
| $11.7M | 0.01% |
28,300
+7,200
| +34% | +$3.25M |
|
741
PUT
Cencora
COR
$63.2B
| $11.6M | 0.01% |
82,300
+68,600
| +501% | +$10.5M |
|
742
Moderna
MRNA
$58.1B
| $11.6M | 0.01% |
81,037
+7,033
| +10% | +$1.01M |
|
743
PUT
NetEase
NTES
$76.4B
| $11.6M | 0.01% |
124,000
-1,500
| -1% | -$143K |
|
744
CALL
New Oriental
EDU
$9.47B
| $11.5M | 0.01% |
566,800
+492,240
| +660% | +$6.74M |
|
|
B
745
Barrick Mining
B
$73.7B
| $11.4M | 0.01% |
647,133
-414,074
| -39% | -$8.98M |
|
746
PUT
United Rentals
URI
$62.9B
| $11.3M | 0.01% |
46,700
+30,100
| +181% | +$8.86M |
|
747
CALL
Aflac
AFL
$58.8B
| $11.3M | 0.01% |
204,500
+81,100
| +66% | +$4.79M |
|
748
PUT
British American Tobacco
BTI
$119B
| $11.3M | 0.01% |
263,400
+11,700
| +5% | +$502K |
|
749
PUT
M&T Bank
MTB
$34.6B
| $11.3M | 0.01% |
70,600
-42,200
| -37% | -$7.09M |
|
750
CALL
Boston Scientific
BSX
$69.3B
| $11.2M | 0.01% |
300,000
-3,500
| -1% | -$142K |
|
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's Q2 2022 filing shows 1,404 new, 4,026 increased, 4,284 reduced and 1,790 closed positions. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $51.5M.
By sector, the portfolio is most concentrated in Miscellaneous at 97% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,404 new positions and closed 1,790 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.