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 | Held Since | |
|---|---|---|---|---|---|---|---|
|
1
PUT
State Street SPDR S&P 500 ETF Trust
SPY
$815B
| $8B | 8.5% |
21,202,800
+2,241,500
| +12% | +$918M |
2015 Q1
29 quarters
|
|
|
2
CALL
State Street SPDR S&P 500 ETF Trust
SPY
$815B
| $7.43B | 7.9% |
19,692,800
+8,135,800
| +70% | +$3.33B |
2015 Q1
29 quarters
|
|
3
CALL
Tesla
TSLA
$1.5T
| $5.53B | 5.88% |
24,650,400
+12,417,900
| +102% | +$3.39B |
2021 Q2
4 quarters
|
|
4
PUT
iShares S&P 100 ETF
OEF
$20.4B
| $3.34B | 3.55% |
29,015,500
+4,231,000
| +17% | +$791M |
2014 Q4
30 quarters
|
|
5
CALL
Invesco QQQ Trust
QQQ
$478B
| $2.89B | 3.07% |
10,317,800
+2,946,000
| +40% | +$914M |
2021 Q2
4 quarters
|
|
|
6
PUT
Invesco QQQ Trust
QQQ
$478B
| $2.79B | 2.96% |
9,949,800
-3,124,200
| -24% | -$970M |
2021 Q2
4 quarters
|
|
|
7
PUT
Tesla
TSLA
$1.5T
| $2.34B | 2.49% |
10,431,900
-1,231,500
| -11% | -$336M |
2021 Q2
4 quarters
|
|
|
8
CALL
iShares S&P 100 ETF
OEF
$20.4B
| $1.99B | 2.12% |
18,422,000
+3,051,800
| +20% | +$570M |
2014 Q4
30 quarters
|
|
|
9
CALL
Alphabet (Google) Class A
GOOGL
$4T
| $1.92B | 2.04% |
17,624,000
+7,542,000
| +75% | +$888M |
2015 Q4
26 quarters
|
|
|
10
PUT
Apple
AAPL
$5.05T
| $1.5B | 1.6% |
11,006,700
-2,250,000
| -17% | -$341M |
2015 Q1
29 quarters
|
|
11
CALL
Amazon
AMZN
$2.72T
| $1.46B | 1.55% |
13,719,300
+459,300
| +3% | +$57.5M |
2015 Q1
29 quarters
|
|
12
PUT
State Street Materials Select Sector SPDR ETF
XLB
$8.14B
| $1.32B | 1.4% |
40,101,200
+854,800
| +2% | +$35.8M |
2015 Q1
29 quarters
|
|
|
13
PUT
Alphabet (Google) Class A
GOOGL
$4T
| $1.29B | 1.37% |
11,842,000
+3,484,000
| +42% | +$410M |
2015 Q4
26 quarters
|
|
|
14
CALL
Apple
AAPL
$5.05T
| $1.09B | 1.16% |
7,965,900
-3,295,200
| -29% | -$499M |
2015 Q1
29 quarters
|
|
|
15
PUT
Amazon
AMZN
$2.72T
| $957M | 1.02% |
9,013,200
-8,806,800
| -49% | -$1.1B |
2015 Q1
29 quarters
|
|
|
16
CALL
State Street Materials Select Sector SPDR ETF
XLB
$8.14B
| $871M | 0.93% |
27,042,600
+6,738,600
| +33% | +$282M |
2015 Q1
29 quarters
|
|
17
CALL
Meta Platforms (Facebook)
META
$1.65T
| $829M | 0.88% |
5,138,700
+1,246,500
| +32% | +$240M |
2014 Q4
30 quarters
|
|
18
CALL
Microsoft
MSFT
$3.9T
| $824M | 0.88% |
3,206,900
+580,400
| +22% | +$158M |
2014 Q4
30 quarters
|
|
19
CALL
SPDR Gold Trust
GLD
$137B
| $757M | 0.8% |
4,491,500
-1,310,200
| -23% | -$229M |
2015 Q1
29 quarters
|
|
|
20
PUT
Microsoft
MSFT
$3.9T
| $701M | 0.75% |
2,731,000
-200,000
| -7% | -$54.3M |
2014 Q4
30 quarters
|
|
|
21
PUT
SPDR Gold Trust
GLD
$137B
| $685M | 0.73% |
4,068,000
+851,000
| +26% | +$149M |
2015 Q1
29 quarters
|
|
22
CALL
NVIDIA
NVDA
$5.15T
| $554M | 0.59% |
36,576,000
-1,132,000
| -3% | -$21.4M |
2021 Q2
4 quarters
|
|
|
23
PUT
NVIDIA
NVDA
$5.15T
| $516M | 0.55% |
34,071,000
-2,232,000
| -6% | -$42.1M |
2021 Q2
4 quarters
|
|
|
24
PUT
Meta Platforms (Facebook)
META
$1.65T
| $488M | 0.52% |
3,027,600
+214,100
| +8% | +$41.3M |
2014 Q4
30 quarters
|
|
25
PUT
iShares Morningstar Value ETF
ILCV
$1.38B
| $446M | 0.47% |
6,187,300
+2,382,300
| +63% | +$154M |
2014 Q4
30 quarters
|
|
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, 4,025 increased, 4,282 reduced and 1,791 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 1,791 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.