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 | |
|---|---|---|---|---|---|---|
2151
PUT
Murphy Oil
MUR
$5.58B
| $1.52M | ﹤0.01% |
50,400
-35,100
| -41% | -$1.35M |
|
2152
CALL
Park Hotels & Resorts
PK
$2.97B
| $1.52M | ﹤0.01% |
112,100
-54,400
| -33% | -$961K |
|
2153
CALL
Upbound Group
UPBD
$1.19B
| $1.52M | ﹤0.01% |
78,200
+65,600
| +521% | +$1.63M |
|
2154
CALL
Aecom
ACM
$9.07B
| $1.52M | ﹤0.01% |
23,300
+14,700
| +171% | +$1.03M |
|
2155
CALL
Builders FirstSource
BLDR
$7.84B
| $1.52M | ﹤0.01% |
28,300
-13,100
| -32% | -$803K |
|
2156
PUT
ICL Group
ICL
$6.81B
| $1.52M | ﹤0.01% |
167,300
+92,900
| +125% | +$1.03M |
|
2157
PUT
iQIYI
IQ
$1.18B
| $1.52M | ﹤0.01% |
361,700
-499,500
| -58% | -$2.01M |
|
2158
PUT
Western Union
WU
$2.57B
| $1.52M | ﹤0.01% |
92,100
+33,400
| +57% | +$589K |
|
2159
CALL
Icahn Enterprises
IEP
$5.17B
| $1.51M | ﹤0.01% |
31,500
-26,600
| -46% | -$1.38M |
|
2160
PUT
Northern Oil and Gas
NOG
$2.3B
| $1.51M | ﹤0.01% |
60,000
+45,600
| +317% | +$1.32M |
|
|
TTM.RT
2161
CALL
DELISTED
TATA MOTORS LIMITED RT PUR ADR
TTM.RT
| $1.51M | ﹤0.01% |
58,600
+38,800
| +196% | +$1M |
|
2162
PUT
Ubiquiti
UI
$31.8B
| $1.51M | ﹤0.01% |
6,100
-13,700
| -69% | -$3.65M |
|
2163
CALL
Darling Ingredients
DAR
$9.93B
| $1.51M | ﹤0.01% |
25,300
-33,000
| -57% | -$2.51M |
|
2164
Amphenol
APH
$188B
| $1.51M | ﹤0.01% |
46,908
+30,518
| +186% | +$1.06M |
|
|
MMP
2165
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $1.51M | ﹤0.01% |
31,578
-31,753
| -50% | -$1.58M |
|
2166
CALL
Lamar Advertising Co
LAMR
$16.2B
| $1.5M | ﹤0.01% |
17,100
+15,100
| +755% | +$1.53M |
|
2167
CALL
SSR Mining
SSRM
$5.57B
| $1.5M | ﹤0.01% |
90,100
+47,200
| +110% | +$974K |
|
2168
PUT
Sociedad Química y Minera de Chile
SQM
$19.6B
| $1.5M | ﹤0.01% |
18,000
+12,500
| +227% | +$1.1M |
|
|
NKLA
2169
PUT
DELISTED
Nikola Corporation Common Stock
NKLA
| $1.5M | ﹤0.01% |
10,530
-17,953
| -63% | -$3.67M |
|
|
CHS
2170
CALL
DELISTED
Chicos FAS, Inc.
CHS
| $1.5M | ﹤0.01% |
301,900
+117,800
| +64% | +$596K |
|
2171
CALL
Planet Labs
PL
$7.3B
| $1.5M | ﹤0.01% |
346,000
+252,100
| +268% | +$1.3M |
|
2172
CALL
Chefs' Warehouse
CHEF
$3.87B
| $1.5M | ﹤0.01% |
38,500
+27,100
| +238% | +$952K |
|
2173
CALL
IQVIA
IQV
$34.7B
| $1.5M | ﹤0.01% |
6,900
-11,900
| -63% | -$2.58M |
|
2174
PUT
Sprott Uranium Miners ETF
URNM
$1.78B
| $1.5M | ﹤0.01% |
+52,400
| New | +$1.86M |
|
2175
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$13.5B
| $1.5M | ﹤0.01% |
32,197
-5,899
| -15% | -$298K |
|
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.