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 | |
|---|---|---|---|---|---|---|
26
CALL
Alibaba
BABA
$278B
| $424M | 0.45% |
3,731,000
-300,800
| -7% | -$29.5M |
|
|
27
Apple
AAPL
$4.77T
| $409M | 0.43% |
2,991,485
+1,890,474
| +172% | +$286M |
|
28
PUT
VanEck Gold Miners ETF
GDX
$23.6B
| $391M | 0.42% |
5,079,800
+133,300
| +3% | +$4.5M |
|
29
CALL
Advanced Micro Devices
AMD
$895B
| $375M | 0.4% |
4,905,200
-568,300
| -10% | -$53.2M |
|
30
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.1B
| $367M | 0.39% |
1,192,100
+4,000
| +0.3% | +$1.31M |
|
31
PUT
State Street SPDR NYSE Technology ETF
XNTK
$2.15B
| $352M | 0.37% |
5,788,000
+1,471,000
| +34% | +$171M |
|
|
32
PUT
Advanced Micro Devices
AMD
$895B
| $331M | 0.35% |
4,334,100
-296,300
| -6% | -$27.7M |
|
|
33
PUT
Alibaba
BABA
$278B
| $277M | 0.29% |
2,437,500
-107,200
| -4% | -$10.5M |
|
34
PUT
Netflix
NFLX
$293B
| $258M | 0.27% |
14,726,000
+4,127,000
| +39% | +$91.5M |
|
|
35
PUT
ExxonMobil
XOM
$637B
| $250M | 0.27% |
2,922,400
+199,500
| +7% | +$18M |
|
|
36
CALL
Netflix
NFLX
$293B
| $247M | 0.26% |
14,127,000
+5,358,000
| +61% | +$119M |
|
37
CALL
iShares Morningstar Value ETF
ILCV
$1.3B
| $244M | 0.26% |
3,996,300
+1,163,200
| +41% | +$75.3M |
|
38
CALL
PayPal
PYPL
$48.8B
| $240M | 0.26% |
3,442,000
+1,040,200
| +43% | +$90.2M |
|
|
39
CALL
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.1B
| $232M | 0.25% |
754,000
+232,000
| +44% | +$75.9M |
|
40
PUT
JPMorgan Chase
JPM
$923B
| $228M | 0.24% |
2,032,000
+379,900
| +23% | +$47.1M |
|
|
41
PUT
Vanguard S&P 500 ETF
VOO
$979B
| $226M | 0.24% |
951,200
+31,400
| +3% | +$11.8M |
|
|
42
CALL
VanEck Gold Miners ETF
GDX
$23.6B
| $223M | 0.24% |
5,493,300
-501,900
| -8% | -$16.9M |
|
|
43
CALL
ExxonMobil
XOM
$637B
| $219M | 0.23% |
2,569,400
+643,400
| +33% | +$58M |
|
|
44
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.15B
| $216M | 0.23% |
3,391,300
-157,300
| -4% | -$18.3M |
|
45
CALL
Walt Disney
DIS
$168B
| $198M | 0.21% |
2,094,500
+278,200
| +15% | +$30.9M |
|
46
PUT
Boeing
BA
$162B
| $189M | 0.2% |
1,382,600
+51,200
| +4% | +$7.55M |
|
47
CALL
Qualcomm
QCOM
$186B
| $186M | 0.2% |
1,457,900
+394,000
| +37% | +$53.5M |
|
|
TWTR
48
CALL
DELISTED
Twitter, Inc.
TWTR
| $182M | 0.19% |
4,872,100
+2,665,600
| +121% | +$114M |
|
49
CALL
Walmart Inc
WMT
$871B
| $182M | 0.19% |
4,487,400
+1,546,500
| +53% | +$71.3M |
|
|
KFYP
50
CALL
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $179M | 0.19% |
5,435,900
+411,700
| +8% | +$10.9M |
|
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.